self.tableView.tableHeaderView = segmentedControl; 

If you want it to obey your width and height properly though enclose your segmentedControl in a UIView first as the tableView likes to mangle your view a bit to fit the width.

Your problem is that, if the user clicks cancel, operationType is null and thus throws a NullPointerException. I would suggest that you move

if (operationType.equalsIgnoreCase("Q")) 

to the beginning of the group of if statements, and then change it to

if(operationType==null||operationType.equalsIgnoreCase("Q")). 

This will make the program exit just as if the user had selected the quit option when the cancel button is pushed.

Then, change all the rest of the ifs to else ifs. This way, once the program sees whether or not the input is null, it doesn't try to call anything else on operationType. This has the added benefit of making it more efficient - once the program sees that the input is one of the options, it won't bother checking it against the rest of them.

There should be three pages here:

1. Initial login page with a form that asks for your username, but not your password.
2. You didn't mention this one, but I'd check whether the client computer is recognized, and if not, then challenge the user with either a CAPTCHA or else a security question. Otherwise the phishing site can simply use the tendered username to query the real site for the security image, which defeats the purpose of having a security image. (A security question is probably better here since with a CAPTCHA the attacker could have humans sitting there answering the CAPTCHAs to get at the security images. Depends how paranoid you want to be.)
3. A page after that that displays the security image and asks for the password.

I don't see this short, linear flow being sufficiently complex to warrant using Spring Web Flow.

I would just use straight Spring Web MVC for steps 1 and 2. I wouldn't use Spring Security for the initial login form, because Spring Security's login form expects a password and a login processing URL. Similarly, Spring Security doesn't provide special support for CAPTCHAs or security questions, so you can just use Spring Web MVC once again.

You can handle step 3 using Spring Security, since now you have a username and a password. The form login page should display the security image, and it should include the user-provided username as a hidden form field to make Spring Security happy when the user submits the login form. The only way to get to step 3 is to have a successful POST submission on step 1 (and 2 if applicable).

It's likely that the download was corrupted if you are getting an error with the disk image. Go back to the downloads page at https://developers.google.com/appengine/downloads and look at the SHA1 checksum. Then, go to your Terminal app on your mac and run the following:

openssl sha1 [put the full path to the file here without brackets] 

For example:

openssl sha1 /Users/me/Desktop/myFile.dmg 

If you get a different value than the one on the Downloads page, you know your file is not properly downloaded and you should try again.

first of all;

a Fragment must be inside a FragmentActivity, that's the first rule,

a FragmentActivity is quite similar to a standart Activity that you already know, besides having some Fragment oriented methods

second thing about Fragments, is that there is one important method you MUST call, wich is onCreateView, where you inflate your layout, think of it as the setContentLayout

here is an example:

    @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {     mView       = inflater.inflate(R.layout.fragment_layout, container, false);       return mView; } 

and continu your work based on that mView, so to find a View by id, call mView.findViewById(..);

for the FragmentActivity part:

the xml part "must" have a FrameLayout in order to inflate a fragment in it

        <FrameLayout             android:id="@+id/content_frame"             android:layout_width="match_parent"             android:layout_height="match_parent"  >         </FrameLayout> 

as for the inflation part

getSupportFragmentManager().beginTransaction().replace(R.id.content_frame, new YOUR_FRAGMENT, "TAG").commit();

begin with these, as there is tons of other stuf you must know about fragments and fragment activities, start of by reading something about it (like life cycle) at the android developer site

Just a wild guess: (not much to go on) but I have had similar problems when, for example, I was using the IIS rewrite module on my local machine (and it worked fine), but when I uploaded to a host that did not have that add-on module installed, I would get a 500 error with very little to go on - sounds similar. It drove me crazy trying to find it.

So make sure whatever options/addons that you might have and be using locally in IIS are also installed on the host.

Similarly, make sure you understand everything that is being referenced/used in your web.config - that is likely the problem area.

I have faced the same issue in Ubuntu because the Angular app directory was having root permission. Changing the ownership to the local user solved the issue for me.

$ sudo -i
$ chown -R <username>:<group> <ANGULAR_APP>
$ exit 
$ cd <ANGULAR_APP>
$ ng serve

These issue arise generally due to mismatch between @ngx-translate/core version and Angular .Before installing check compatible version of corresponding ngx_trnalsate/Core, @ngx-translate/http-loader and Angular at https://www.npmjs.com/package/@ngx-translate/core

Eg: For Angular 6.X versions,

npm install @ngx-translate/core@10 @ngx-translate/http-loader@3 rxjs --save

Like as above, follow below command and rest of code part is common for all versions(Note: Version can obtain from( https://www.npmjs.com/package/@ngx-translate/core)

npm install @ngx-translate/core@version @ngx-translate/http-loader@version rxjs --save

I add the following code to my pom.xml file. It solved my problem.

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
</properties>

You can do it using named-entity recognition (NER). It's fairly simple and there are out-of-the-shelf tools out there to do it, such as spaCy.

NER is an NLP task where a neural network (or other method) is trained to detect certain entities, such as names, places, dates and organizations.

Example:

Sponge Bob went to South beach, he payed a ticket of $200!
I know, Michael is a good person, he goes to McDonalds, but donates to charity at St. Louis street.

Returns:

Just be aware that this is not 100%!

Here are a little snippet for you to try out:

import spacy

phrases = ['Sponge Bob went to South beach, he payed a ticket of $200!', 'I know, Michael is a good person, he goes to McDonalds, but donates to charity at St. Louis street.']
nlp = spacy.load('en')
for phrase in phrases:
   doc = nlp(phrase)
   replaced = ""
   for token in doc:
      if token in doc.ents:
         replaced+="XXXX "
      else:
         replaced+=token.text+" "

Read more here: https://spacy.io/usage/linguistic-features#named-entities

You could, instead of replacing with XXXX, replace based on the entity type, like:

if ent.label_ == "PERSON":
   replaced += "<PERSON> "

Then:

import re, random

personames = ["Jack", "Mike", "Bob", "Dylan"]

phrase = re.replace("<PERSON>", random.choice(personames), phrase)

I added %matplotlib inline and my plot showed up in Jupyter Notebook.

With Swift 5.2 and iOS 13.4, according to your needs, you can use one of the following examples to align your VStack with top leading constraints and a full size frame.

Note that the code snippets below all result in the same display, but do not guarantee the effective frame of the VStack nor the number of View elements that might appear while debugging the view hierarchy.

1. Using frame(minWidth:idealWidth:maxWidth:minHeight:idealHeight:maxHeight:alignment:) method

The simplest approach is to set the frame of your VStack with maximum width and height and also pass the required alignment in frame(minWidth:idealWidth:maxWidth:minHeight:idealHeight:maxHeight:alignment:):

struct ContentView: View {

    var body: some View {
        VStack(alignment: .leading) {
            Text("Title")
                .font(.title)
            Text("Content")
                .font(.body)
        }
        .frame(
            maxWidth: .infinity,
            maxHeight: .infinity,
            alignment: .topLeading
        )
        .background(Color.red)
    }

}

As an alternative, if setting maximum frame with specific alignment for your Views is a common pattern in your code base, you can create an extension method on View for it:

extension View {

    func fullSize(alignment: Alignment = .center) -> some View {
        self.frame(
            maxWidth: .infinity,
            maxHeight: .infinity,
            alignment: alignment
        )
    }

}

struct ContentView : View {

    var body: some View {
        VStack(alignment: .leading) {
            Text("Title")
                .font(.title)
            Text("Content")
                .font(.body)
        }
        .fullSize(alignment: .topLeading)
        .background(Color.red)
    }

}

2. Using Spacers to force alignment

You can embed your VStack inside a full size HStack and use trailing and bottom Spacers to force your VStack top leading alignment:

struct ContentView: View {

    var body: some View {
        HStack {
            VStack(alignment: .leading) {
                Text("Title")
                    .font(.title)
                Text("Content")
                    .font(.body)

                Spacer() // VStack bottom spacer
            }

            Spacer() // HStack trailing spacer
        }
        .frame(
            maxWidth: .infinity,
            maxHeight: .infinity
        )
        .background(Color.red)
    }

}

3. Using a ZStack and a full size background View

This example shows how to embed your VStack inside a ZStack that has a top leading alignment. Note how the Color view is used to set maximum width and height:

struct ContentView: View {

    var body: some View {
        ZStack(alignment: .topLeading) {
            Color.red
                .frame(maxWidth: .infinity, maxHeight: .infinity)

            VStack(alignment: .leading) {
                Text("Title")
                    .font(.title)
                Text("Content")
                    .font(.body)
            }
        }
    }

}

4. Using GeometryReader

GeometryReader has the following declaration:

A container view that defines its content as a function of its own size and coordinate space. [...] This view returns a flexible preferred size to its parent layout.

The code snippet below shows how to use GeometryReader to align your VStack with top leading constraints and a full size frame:

struct ContentView : View {

    var body: some View {
        GeometryReader { geometryProxy in
            VStack(alignment: .leading) {
                Text("Title")
                    .font(.title)
                Text("Content")
                    .font(.body)
            }
            .frame(
                width: geometryProxy.size.width,
                height: geometryProxy.size.height,
                alignment: .topLeading
            )
        }
        .background(Color.red)
    }

}

5. Using overlay(_:alignment:) method

If you want to align your VStack with top leading constraints on top of an existing full size View, you can use overlay(_:alignment:) method:

struct ContentView: View {

    var body: some View {
        Color.red
            .frame(
                maxWidth: .infinity,
                maxHeight: .infinity
            )
            .overlay(
                VStack(alignment: .leading) {
                    Text("Title")
                        .font(.title)
                    Text("Content")
                        .font(.body)
                },
                alignment: .topLeading
            )
    }

}

Display:

If you get this error under Linux when running conda using sudo, you might be suffering from bug #7267:

When logging in as non-root user via sudo, e.g. by:

sudo -u myuser -i

conda seems to assume that it is run as root and raises an error.

The only known workaround seems to be: Add the following line to your ~/.bashrc:

unset SUDO_UID SUDO_GID SUDO_USER

...or unset the ENV variables by running the line in a different way before running conda.

If you mistakenly installed anaconda/miniconda as root/via sudo this can also lead to the same error, then you might want to do the following:

sudo chown -R username /path/to/anaconda3

Tested with conda 4.6.14.

Tensorflow 2.x support's Eager Execution by default hence Session is not supported.

Since the cleanup is not dependent on the username, you could put the cleanup in a separate useEffect that is given an empty array as second argument.

Example

const { useState, useEffect } = React;_x000D_
_x000D_
const ForExample = () => {_x000D_
  const [name, setName] = useState("");_x000D_
  const [username, setUsername] = useState("");_x000D_
_x000D_
  useEffect(_x000D_
    () => {_x000D_
      console.log("effect");_x000D_
    },_x000D_
    [username]_x000D_
  );_x000D_
_x000D_
  useEffect(() => {_x000D_
    return () => {_x000D_
      console.log("cleaned up");_x000D_
    };_x000D_
  }, []);_x000D_
_x000D_
  const handleName = e => {_x000D_
    const { value } = e.target;_x000D_
_x000D_
    setName(value);_x000D_
  };_x000D_
_x000D_
  const handleUsername = e => {_x000D_
    const { value } = e.target;_x000D_
_x000D_
    setUsername(value);_x000D_
  };_x000D_
_x000D_
  return (_x000D_
    <div>_x000D_
      <div>_x000D_
        <input value={name} onChange={handleName} />_x000D_
        <input value={username} onChange={handleUsername} />_x000D_
      </div>_x000D_
      <div>_x000D_
        <div>_x000D_
          <span>{name}</span>_x000D_
        </div>_x000D_
        <div>_x000D_
          <span>{username}</span>_x000D_
        </div>_x000D_
      </div>_x000D_
    </div>_x000D_
  );_x000D_
};_x000D_
_x000D_
function App() {_x000D_
  const [shouldRender, setShouldRender] = useState(true);_x000D_
_x000D_
  useEffect(() => {_x000D_
    setTimeout(() => {_x000D_
      setShouldRender(false);_x000D_
    }, 5000);_x000D_
  }, []);_x000D_
_x000D_
  return shouldRender ? <ForExample /> : null;_x000D_
}_x000D_
_x000D_
ReactDOM.render(<App />, document.getElementById("root"));

<script src="https://unpkg.com/react@16/umd/react.development.js"></script>_x000D_
<script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>_x000D_
_x000D_
<div id="root"></div>

Little late to the party but why don't you guys try animation.No I am not telling you to manage animation controllers and disposing them off and all that stuff.theres a built-in widget for that called TweenAnimationBuilder.You can animate between values of any type,heres an example with a Duration class

TweenAnimationBuilder<Duration>(
              duration: Duration(minutes: 3),
              tween: Tween(begin: Duration(minutes: 3), end: Duration.zero),
              onEnd: () {
                print('Timer ended');
              },
              builder: (BuildContext context, Duration value, Widget child) {
              final minutes = value.inMinutes;
              final seconds = value.inSeconds % 60;
              return Padding(
                     padding: const EdgeInsets.symmetric(vertical: 5),
                     child: Text('$minutes:$seconds',
                            textAlign: TextAlign.center,
                            style: TextStyle(
                            color: Colors.black,
                            fontWeight: FontWeight.bold,
                            fontSize: 30)));
              }),

and You also get onEnd call back which notifies you when the animation completes;

here's the output

FIRST, if you want to be able to access man1.py from man1test.py AND manModules.py from man1.py, you need to properly setup your files as packages and modules.

Packages are a way of structuring Python’s module namespace by using “dotted module names”. For example, the module name A.B designates a submodule named B in a package named A.

...

When importing the package, Python searches through the directories on sys.path looking for the package subdirectory.

The __init__.py files are required to make Python treat the directories as containing packages; this is done to prevent directories with a common name, such as string, from unintentionally hiding valid modules that occur later on the module search path.

You need to set it up to something like this:

man
|- __init__.py
|- Mans
   |- __init__.py
   |- man1.py
|- MansTest
   |- __init.__.py
   |- SoftLib
      |- Soft
         |- __init__.py
         |- SoftWork
            |- __init__.py
            |- manModules.py
      |- Unittests
         |- __init__.py
         |- man1test.py

SECOND, for the "ModuleNotFoundError: No module named 'Soft'" error caused by from ...Mans import man1 in man1test.py, the documented solution to that is to add man1.py to sys.path since Mans is outside the MansTest package. See The Module Search Path from the Python documentation. But if you don't want to modify sys.path directly, you can also modify PYTHONPATH:

sys.path is initialized from these locations:

• The directory containing the input script (or the current directory when no file is specified).
• PYTHONPATH (a list of directory names, with the same syntax as the shell variable PATH).
• The installation-dependent default.

THIRD, for from ...MansTest.SoftLib import Soft which you said "was to facilitate the aforementioned import statement in man1.py", that's now how imports work. If you want to import Soft.SoftLib in man1.py, you have to setup man1.py to find Soft.SoftLib and import it there directly.

With that said, here's how I got it to work.

man1.py:

from Soft.SoftWork.manModules import *
# no change to import statement but need to add Soft to PYTHONPATH

def foo():
    print("called foo in man1.py")
    print("foo call module1 from manModules: " + module1())

man1test.py

# no need for "from ...MansTest.SoftLib import Soft" to facilitate importing..
from ...Mans import man1

man1.foo()

manModules.py

def module1():
    return "module1 in manModules"

Terminal output:

$ python3 -m man.MansTest.Unittests.man1test
Traceback (most recent call last):
  ...
    from ...Mans import man1
  File "/temp/man/Mans/man1.py", line 2, in <module>
    from Soft.SoftWork.manModules import *
ModuleNotFoundError: No module named 'Soft'

$ PYTHONPATH=$PYTHONPATH:/temp/man/MansTest/SoftLib
$ export PYTHONPATH
$ echo $PYTHONPATH
:/temp/man/MansTest/SoftLib
$ python3 -m man.MansTest.Unittests.man1test
called foo in man1.py
foo called module1 from manModules: module1 in manModules 

As a suggestion, maybe re-think the purpose of those SoftLib files. Is it some sort of "bridge" between man1.py and man1test.py? The way your files are setup right now, I don't think it's going to work as you expect it to be. Also, it's a bit confusing for the code-under-test (man1.py) to be importing stuff from under the test folder (MansTest).

I faced the same problem. Initially I deleted the .bash_profile but this is not the right way. After installing anaconda it is showing the instructions clearly for this problem. Please check the image for solution provided by Anaconda

I've got the same issue as stated by Grigoriy Yuschenko. Same Intellij 2018 3.3

I was able to start my project by setting (like stated by Grigoriy)

File->Project Structure->Modules ->> Language level to 8 ( my maven project was set to 1.8 java)

AND

File -> Settings -> Build, Execution, Deployment -> Compiler -> Java Compiler -> 8 also there

I hope it would be useful

I was having the same issue until I worked out that I was trying to make my project directory and the virtual environment one and the same - which isn't correct.

I have a \Code\Python directory where I store all my Python projects. My Python 3 installation is on my Path.

If I want to create a new Python project (Project1) with its own virtual environment, then I do this:

python -m venv Code\Python\Project1\venv

Then, simply opening the folder (Project1) in Visual Studio Code ensures that the correct virtual environment is used.

I had a similar problem and solved it :

I was automatically making the user logged-in by dispatching an action on redux ( placing authentication token on redux state )

and then I was trying to show a message with this.setState({succ_message: "...") in my component.

Component was looking empty with the same error on console : "unmounted component".."memory leak" etc.

After I read Walter's answer up in this thread

I've noticed that in the Routing table of my application , my component's route wasn't valid if user is logged-in :

{!this.props.user.token &&
        <div>
            <Route path="/register/:type" exact component={MyComp} />                                             
        </div>
}

I made the Route visible whether the token exists or not.

The accepted answer won't fix the error when importing own modules.

Use the following setting in your workspace settings .vscode/settings.json:

"python.autoComplete.extraPaths": ["./path-to-your-code"],

Reference: Troubleshooting, Unresolved import warnings

I upgraded my IntelliJ Version from 2018.1 to 2018.3.6. It works !

1. Delete the node_modules directory
2. Delete the package-lock.json file
3. Run npm install
4. Run npm start

OR

rm -rf node_modules package-lock.json && npm install && npm start

In my case, the API responded with a CORS error. I instead formatted the query parameters into query string. It successfully posted data and also avoided the CORS issue.

        var data = {};

        const params = new URLSearchParams({
          contact: this.ContactPerson,
          phoneNumber: this.PhoneNumber,
          email: this.Email
        }).toString();

        const url =
          "https://test.com/api/UpdateProfile?" +
          params;

        axios
          .post(url, data, {
            headers: {
              aaid: this.ID,
              token: this.Token
            }
          })
          .then(res => {
            this.Info = JSON.parse(res.data);
          })
          .catch(err => {
            console.log(err);
          });

It might be clear for most, but have in mind that a function called inside the function component's body, acts as a beforeRender. This doesn't answer the question of running code on ComponentWillMount (before the first render) but since it is related and might help others I'm leaving it here.

const MyComponent = () => {
  const [counter, setCounter] = useState(0)
  
  useEffect(() => {
    console.log('after render')
  })

  const iterate = () => {
    setCounter(prevCounter => prevCounter+1)
  }

  const beforeRender = () => {
    console.log('before render')
  }

  beforeRender()

  return (
    <div>
      <div>{counter}</div>
      <button onClick={iterate}>Re-render</button>
    </div>
  )
}

export default MyComponent

I believe the original post was about removing the space between the buttons in a row, not adding space.

The trick is that the minimum space between the buttons was due to padding built into the buttons as part of the material design specification.

So, don't use buttons! But a GestureDetector instead. This widget type give the onClick / onTap functionality but without the styling.

See this post for an example.

https://stackoverflow.com/a/56001817/766115

I encountered the same error, with the below code.

    return this.state.employees.map((employee) => {
      <option value={employee.id}>
        {employee.name}
      </option>
    });

Above issue got resolved, when I changed curly braces to parenthesis, as indicated in the below modified code snippet.

      return this.state.employees.map((employee) => (
          <option value={employee.id}>
            {employee.name}
          </option>
        ));

The answer is in the error message. In the past you or a process did a sudo pip and that caused some of the directories under /Library/Python/2.7/site-packages/... to have permissions that make it unaccessable to your current user.

Then you did a pip install whatever which relies on the other thing.

So to fix it, visit the /Library/Python/2.7/site-packages/... and find the directory with the root or not-your-user permissions and either remove then reinstall those packages, or just force ownership to the user to whom ought to have access.

You can add some code like this

ListView.builder{
   shrinkWrap: true,
}

Columns Has no height by default, You can Wrap your Column to the Container and add the specific height to your Container. Then You can use something like below:

Container(
   width: double.infinity,//Your desire Width
   height: height,//Your desire Height
   child: Column(
      mainAxisAlignment: MainAxisAlignment.spaceBetween,
      children: <Widget>[
         Text('One'),
         Text('Two')
      ],
   ),
),

According to the release-notes, Java 11 removed the Java EE modules:

java.xml.bind (JAXB) - REMOVED

• Java 8 - OK
• Java 9 - DEPRECATED
• Java 10 - DEPRECATED
• Java 11 - REMOVED

See JEP 320 for more info.

You can fix the issue by using alternate versions of the Java EE technologies. Simply add Maven dependencies that contain the classes you need:

<dependency>
  <groupId>javax.xml.bind</groupId>
  <artifactId>jaxb-api</artifactId>
  <version>2.3.0</version>
</dependency>
<dependency>
  <groupId>com.sun.xml.bind</groupId>
  <artifactId>jaxb-core</artifactId>
  <version>2.3.0</version>
</dependency>
<dependency>
  <groupId>com.sun.xml.bind</groupId>
  <artifactId>jaxb-impl</artifactId>
  <version>2.3.0</version>
</dependency>

Jakarta EE 8 update (Mar 2020)

Instead of using old JAXB modules you can fix the issue by using Jakarta XML Binding from Jakarta EE 8:

<dependency>
  <groupId>jakarta.xml.bind</groupId>
  <artifactId>jakarta.xml.bind-api</artifactId>
  <version>2.3.3</version>
</dependency>
<dependency>
  <groupId>com.sun.xml.bind</groupId>
  <artifactId>jaxb-impl</artifactId>
  <version>2.3.3</version>
  <scope>runtime</scope>
</dependency>

Jakarta EE 9 update (Nov 2020)

Use latest release of Eclipse Implementation of JAXB 3.0.0:

• Jakarta EE9 API jakarta.xml.bind-api
• compatible implementation jaxb-impl

<dependency>
  <groupId>jakarta.xml.bind</groupId>
  <artifactId>jakarta.xml.bind-api</artifactId>
  <version>3.0.0</version>
</dependency>
<dependency>
  <groupId>com.sun.xml.bind</groupId>
  <artifactId>jaxb-impl</artifactId>
  <version>3.0.0</version>
  <scope>runtime</scope>
</dependency>

Note: Jakarta EE 9 adopts new API package namespace jakarta.xml.bind.*, so update import statements:

javax.xml.bind -> jakarta.xml.bind

You have a CryptoListPresenter _presenter but you are never initializing it. You should either be doing that when you declare it or in your initState() (or another appropriate but called-before-you-need-it method).

One thing I find that helps is that if I know a member is functionally 'final', to actually set it to final as that way the analyzer complains that it hasn't been initialized.

EDIT:

I see diegoveloper beat me to answering this, and that the OP asked a follow up.

@Jake - it's hard for us to tell without knowing exactly what CryptoListPresenter is, but depending on what exactly CryptoListPresenter actually is, generally you'd do final CryptoListPresenter _presenter = new CryptoListPresenter(...);, or

CryptoListPresenter _presenter;

@override
void initState() {
  _presenter = new CryptoListPresenter(...);
}

As the error says your router link should match the existing routes configured

It should be just routerLink="/about"

When all of the mentioned methods failed, I was able to install scikit-learn by following the instructions from the official site https://scikit-learn.org/stable/install.html.

Error caused by file path length limit on Windows

It can happen that pip fails to install packages when reaching the default path size limit of Windows if Python is installed in a nested location such as the AppData folder structure under the user home directory, for instance:

Collecting scikit-learn
...
Installing collected packages: scikit-learn
ERROR: Could not install packages due to an EnvironmentError: [Errno 2] No such file or directory: 'C:\\Users\\username\\AppData\\Local\\Packages\\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\\LocalCache\\local-packages\\Python37\\site-packages\\sklearn\\datasets\\tests\\data\\openml\\292\\api-v1-json-data-list-data_name-australian-limit-2-data_version-1-status-deactivated.json.gz'

In this case it is possible to lift that limit in the Windows registry by using the regedit tool:

Type “regedit” in the Windows start menu to launch regedit.

Go to the Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem key.

Edit the value of the LongPathsEnabled property of that key and set it to 1.

Reinstall scikit-learn (ignoring the previous broken installation):

pip install --exists-action=i scikit-learn

Thanks guys for help. From your suggestions i reached a solution like this.

new LayoutBuilder(
        builder:
            (BuildContext context, BoxConstraints viewportConstraints) {
          return SingleChildScrollView(
            child: ConstrainedBox(
              constraints:
                  BoxConstraints(minHeight: viewportConstraints.maxHeight),
              child: Column(children: [
             // remaining stuffs
              ]),
            ),
          );
        },
      )

It took me a while to implement the other responses, as I'm using Angular 8 (tested up to 10). I ended up with the following code (heavily inspired by Hasan).

Note that for the name to be set, the header Access-Control-Expose-Headers MUST include Content-Disposition. To set this in django RF:

http_response = HttpResponse(package, content_type='application/javascript')
http_response['Content-Disposition'] = 'attachment; filename="{}"'.format(filename)
http_response['Access-Control-Expose-Headers'] = "Content-Disposition"

In angular:

  // component.ts
  // getFileName not necessary, you can just set this as a string if you wish
  getFileName(response: HttpResponse<Blob>) {
    let filename: string;
    try {
      const contentDisposition: string = response.headers.get('content-disposition');
      const r = /(?:filename=")(.+)(?:")/
      filename = r.exec(contentDisposition)[1];
    }
    catch (e) {
      filename = 'myfile.txt'
    }
    return filename
  }

  
  downloadFile() {
    this._fileService.downloadFile(this.file.uuid)
      .subscribe(
        (response: HttpResponse<Blob>) => {
          let filename: string = this.getFileName(response)
          let binaryData = [];
          binaryData.push(response.body);
          let downloadLink = document.createElement('a');
          downloadLink.href = window.URL.createObjectURL(new Blob(binaryData, { type: 'blob' }));
          downloadLink.setAttribute('download', filename);
          document.body.appendChild(downloadLink);
          downloadLink.click();
        }
      )
  }

  // service.ts
  downloadFile(uuid: string) {
    return this._http.get<Blob>(`${environment.apiUrl}/api/v1/file/${uuid}/package/`, { observe: 'response', responseType: 'blob' as 'json' })
  }

In Colum widget Text alignment will be centred automatically, so use crossAxisAlignment: CrossAxisAlignment.start to align start.

Column( 
    crossAxisAlignment: CrossAxisAlignment.start, 
    children: <Widget>[ 
    Text(""),
    Text(""),
    ]);

You can get this issue if Apple update their terms. Simply log into your dev account and accept any updated terms and you should be good (you will need to goto Xcode -> project->signing and capabilities and retry the certificate check. This should get you going if terms are the issue.

Unless you tell the development server that it's running in development mode, it will assume you're using it in production and warn you not to. The development server is not intended for use in production. It is not designed to be particularly efficient, stable, or secure.

Enable development mode by setting the FLASK_ENV environment variable to development.

$ export FLASK_APP=example
$ export FLASK_ENV=development
$ flask run

If you're running in PyCharm (or probably any other IDE) you can set environment variables in the run configuration.

Development mode enables the debugger and reloader by default. If you don't want these, pass --no-debugger or --no-reloader to the run command.

That warning is just a warning though, it's not an error preventing your app from running. If your app isn't working, there's something else wrong with your code.

1. Create images folder in root level of your project.

   

   

2. Drop your image in this folder, it should look like

   

3. Go to your pubspec.yaml file, add assets header and pay close attention to all the spaces.

   flutter:
   
     uses-material-design: true
   
     # add this
     assets:
       - images/profile.jpg
   

4. Tap on Packages get at the top right corner of the IDE.

   

5. Now you can use your image anywhere using

   Image.asset("images/profile.jpg")
   

The following is works best in my opinion:

Get-Item Env:PATH

1. It's shorter and therefore a little bit easier to remember than Get-ChildItem. There's no hierarchy with environment variables.
2. The command is symmetrical to one of the ways that's used for setting environment variables with Powershell. (EX: Set-Item -Path env:SomeVariable -Value "Some Value")
3. If you get in the habit of doing it this way you'll remember how to list all Environment variables; simply omit the entry portion. (EX: Get-Item Env:)

I found the syntax odd at first, but things started making more sense after I understood the notion of Providers. Essentially PowerShell let's you navigate disparate components of the system in a way that's analogous to a file system.

What's the point of the trailing colon in Env:? Try listing all of the "drives" available through Providers like this:

PS> Get-PSDrive

I only see a few results... (Alias, C, Cert, D, Env, Function, HKCU, HKLM, Variable, WSMan). It becomes obvious that Env is simply another "drive" and the colon is a familiar syntax to anyone who's worked in Windows.

You can navigate the drives and pick out specific values:

Get-ChildItem C:\Windows
Get-Item C:
Get-Item Env:
Get-Item HKLM:
Get-ChildItem HKLM:SYSTEM

If you are using Vue cli 3, only variables that start with VUE_APP_ will be loaded.

In the root create a .env file with:

VUE_APP_ENV_VARIABLE=value

And, if it's running, you need to restart serve so that the new env vars can be loaded.

With this, you will be able to use process.env.VUE_APP_ENV_VARIABLE in your project (.js and .vue files).

Update

According to @ali6p, with Vue Cli 3, isn't necessary to install dotenv dependency.

Have a look at this solution I came up with

Positioned( child: SizedBox( child: CircularProgressIndicator(), width: 50, height: 50,), left: MediaQuery.of(context).size.width / 2 - 25);

I just ran the command with sudo:

sudo pip install numpy

Bear in mind that you will be asked for the user's password. This was tested on macOS High Sierra (10.13)

Add this:

tools:replace="android:appComponentFactory"
android:appComponentFactory="whateverString"

to your manifest application

<application
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher_round"
    tools:replace="android:appComponentFactory"
    android:appComponentFactory="whateverString">

hope it helps

To convert Firestore Timestamp to DateTime object just use .toDate() method.

Example:

Timestamp now = Timestamp.now();
DateTime dateNow = now.toDate();

As you can see in docs

you can get it from here https://slproweb.com/products/Win32OpenSSL.html

Supported and reqognized by https://wiki.openssl.org/index.php/Binaries

Running ng serve --open after creating and going into my new project "frontend" gave this error:

After creating the project, you need to run

npm install 

to install all the dependencies listed in package.json

Alternatively to the suggested answers you could try and use mysql_native_password authentication plugin instead of caching_sha2_password authentication plugin.

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'your_password_here'; 

Just had the same error message, but when I was running a package.json with:

"scripts": {
    "build": "tsc -p ./src",
}

tsc is the command to run the TypeScript compiler.

I never had any issues with this project because I had TypeScript installed as a global module. As this project didn't include TypeScript as a dev dependency (and expected it to be installed as global), I had the error when testing in another machine (without TypeScript) and running npm install didn't fix the problem. So I had to include TypeScript as a dev dependency (npm install typescript --save-dev) to solve the problem.

I faced the same problem.

Surprisingly, it was just because the version specified in package.json was not in the expected format.

I switched from version "version": "0.1" to "version": "0.0.1" and it solved the problem.

Angular NEEDS semantic versioning (also read Semver) with three parts.

For Angular 2 - 5 refer the article Multiple Environment in angular

For Angular 6 use ng serve --configuration=dev

Note: Refer the same article for angular 6 as well. But wherever you find --env instead use --configuration. That's works well for angular 6.

I had this error for several hours an just got to the bottom of it, finally. As Zchary says, check very carefully you're passing in the right database name.

Actually, in my case, it was even worse: I was passing in all my createConnection() parameters as undefined because I was picking them up from process.env. Or so I thought! Then I realised my debug and test npm scripts worked but things failed for a normal run. Hmm...

So the point is - MySQL seems to throw this error even when the username, password, database and host fields are all undefined, which is slightly misleading..

Anyway, morale of the story - check the silly and seemingly-unlikely things first!

You could try BeeWare - as described on their website:

Write your apps in Python and release them on iOS, Android, Windows, MacOS, Linux, Web, and tvOS using rich, native user interfaces. One codebase. Multiple apps.

Gives you want you want now to write Android Apps in Python, plus has the advantage that you won't need to learn yet another framework in future if you end up also wanting to do something on one of the other listed platforms.

Here's the Tutorial for Android Apps.

We started getting this error on the production server after deploying the application migrated from 4.6.1 to 4.7.2.

We noticed that the .NET framework 4.7.2 was not installed there. In order to solve this issue we did the following steps:

1. Installed the .NET Framework 4.7.2 from:

   https://support.microsoft.com/en-us/help/4054530/microsoft-net-framework-4-7-2-offline-installer-for-windows

2. Restarted the machine

3. Confirmed the .NET Framework version with the help of How do I find the .NET version?

Running the application again with the .Net Framework 4.7.2 version installed on the machine fixed the issue.

Check out this link to migrate from Angular 5.2 to 6. https://update.angular.io/

Upgrading to version 8.9 worked for me.

HttpClientModule needs to be in the imports array, and remove it from providers. That section is for you to tell Angular which services the module has (written by you and not imported from a library).

My environment : Windows 10 64bit, OpenJDK 14.0.2

Initial errors are as reported above.

Error was resolved after

1. Replaced "C:<installation-folder>\openjdk-14.0.2_windows-x64_bin\jdk-14.0.2" with "*C:\Program Files\Android\Android Studio\jre*" in environment variable PATH & JAVA_HOME
2. ran flutter doctor --android-licenses and selected y for the prompts

The error is legitimate and may prevent your app from crashing. You typed makes as an array but it can also be undefined.

You have 2 options (instead of disabling the typescript's reason for existing...):

1. In your case the best is to type makes as possibily undefined.

makes?: any[]
// or
makes: any[] | undefined

In this case the compiler will inform you whenever you try to access to makes that it could be undefined. For exemple if the // <-- Not ok lines below are executed before getMakes finished or if getMakes fails, your app will crash and a runetime error will be thrown.

makes[0] // <-- Not ok
makes.map(...) // <-- Not ok

if (makes) makes[0] // <-- Ok
makes?.[0] // <-- Ok
(makes ?? []).map(...) // <-- Ok

2. You can assume that it will never fail and that you will never try to access it before initialization by writing the code below (risky!). So the compiler won't take care about it.

makes!: any[]

In my case, this error happened with a new project.

none of the proposed solutions here worked, so I simply reinstalled all the packages and started working correctly.

If you are using spring boot then add these tags in pom.xml.

<plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
</plugin>

and

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    `<maven.compiler.release>`10</maven.compiler.release>
</properties>

You can change java version to 11 or 13 as well in <maven.compiler.release> tag.

Just add below tags in pom.xml

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <maven.compiler.release>11</maven.compiler.release>
</properties>

You can change the 11 to 10, 13 as well to change java version. I am using java 13 which is latest. It works for me.

Let say we are creating a drop down list of currency:

List _currency = ["INR", "USD", "SGD", "EUR", "PND"];
List<DropdownMenuItem<String>> _dropDownMenuCurrencyItems;
String _currentCurrency;

List<DropdownMenuItem<String>> getDropDownMenuCurrencyItems() {
  List<DropdownMenuItem<String>> items = new List();
  for (String currency in _currency) {
    items.add(
      new DropdownMenuItem(value: currency, child: new Text(currency)));
  }
  return items;
}

void changedDropDownItem(String selectedCurrency) {
  setState(() {
    _currentCurrency = selectedCurrency;
  });
}

Add below code in body part:

new Row(children: <Widget>[
  new Text("Currency: "),
  new Container(
    padding: new EdgeInsets.all(16.0),
  ),
  new DropdownButton(
    value: _currentCurrency,
    items: _dropDownMenuCurrencyItems,
    onChanged: changedDropDownItem,
  )
])

In the interactive console, it's easy to do:

data_all2.columns.tolist()

Or this within a script:

print(data_all2.columns.tolist())

SdkManager removes the API28 version and re-downloads the API28 version, setting the Flutter and Dart paths in AndroidStudio, and now it works fine. image

Use source deactivate to deactivate the environment before removing it, replace ENV_NAME with the environment you wish to remove:

source deactivate
conda env remove -n ENV_NAME

As this post gets a bit of popularity I edited it a bit. Spring Boot 2.x.x changed default JDBC connection pool from Tomcat to faster and better HikariCP. Here comes incompatibility, because HikariCP uses different property of jdbc url. There are two ways how to handle it:

OPTION ONE

There is very good explanation and workaround in spring docs:

Also, if you happen to have Hikari on the classpath, this basic setup does not work, because Hikari has no url property (but does have a jdbcUrl property). In that case, you must rewrite your configuration as follows:

app.datasource.jdbc-url=jdbc:mysql://localhost/test
app.datasource.username=dbuser
app.datasource.password=dbpass

OPTION TWO

There is also how-to in the docs how to get it working from "both worlds". It would look like below. ConfigurationProperties bean would do "conversion" for jdbcUrl from app.datasource.url

@Configuration
public class DatabaseConfig {
    @Bean
    @ConfigurationProperties("app.datasource")
    public DataSourceProperties dataSourceProperties() {
        return new DataSourceProperties();
    }

    @Bean
    @ConfigurationProperties("app.datasource")
    public HikariDataSource dataSource(DataSourceProperties properties) {
        return properties.initializeDataSourceBuilder().type(HikariDataSource.class)
                .build();
    }
}

In case other answers didn't work for you

If you are using *nixOS or Mac

1. Open the terminal and type which flutter. You'll get something like /Users/mac/development/flutter/bin/flutter under that directory go to cache folder here you will find either dart-sdk or (and) dart-sdk.old folder. Copy their paths.
2. Open preferences by pressing ctrl+alt+s or cmd+, on mac. Under Language & Frameworks choose Dart find Dart SDK path. Put that path you've copied at first step to there. Click Apply.

If this didn't solve the issue you have to also set the Flutter SDK path

1. Under Language & Frameworks choose Flutter and find Flutter SDK path field.
2. Your flutter SDK path is two step above in the folder hierarchy relative to which which flutter command gave to you. Set it to the field you've found in step 1 of this header. Again click Apply & click save or ok.

My response is fairly late. I faced the same problem. I am on Windows 10. This is what I did:

• Open a new Command prompt (CMD.EXE)
• Set the environment variables . set myvar1=myvalue1
• Launch VS Code from that Command prompt by typing code and then press ENTER
• VS code was launched and it inherited all the custom variables that I had set in the parent CMD window

Optionally, you can also use the Control Panel -> System properties window to set the variables on a more permanent basis

Hope this helps.

define ANDROID_SDK_ROOT as environment variable where your SDK is residing, default path would be "C:\Program Files (x86)\Android\android-sdk" and restart computer to take effect.

Try adding the conda-forge channel to your list of channels with this command:
conda config --append channels conda-forge. It tells conda to also look on the conda-forge channel when you search for packages. You can then simply install the two packages with conda install slycot control.

Channels are basically servers for people to host packages on and the community-driven conda-forge is usually a good place to start when packages are not available via the standard channels. I checked and both slycot and control seem to be available there.

In my case, upgraded from spring-securiy-web 3.1.3 to 4.2.12, the defaultHttpFirewall was changed from DefaultHttpFirewall to StrictHttpFirewall by default. So just define it in XML configuration like below:

<bean id="defaultHttpFirewall" class="org.springframework.security.web.firewall.DefaultHttpFirewall"/>
<sec:http-firewall ref="defaultHttpFirewall"/>

set HTTPFirewall as DefaultHttpFirewall

// Enable middleware to serve generated Swagger as a JSON endpoint.

app.UseSwagger(c =>
{
    c.SerializeAsV2 = true;
});

// Enable middleware to serve swagger-ui (HTML, JS, CSS, etc.),
// specifying the Swagger JSON endpoint.
app.UseSwaggerUI(c =>
{
    c.SwaggerEndpoint("/swagger/v1/swagger.json", "API Name");
});

If it has to be accessible with a global scope

global.fetch = require("node-fetch");

This is a quick dirty fix, please try to eliminate this usage in production code.

Windows 10:

Android Studio -> File -> Other Settings -> Default Project Structure... -> JDK location:

copy string shown, such as:

C:\Program Files\Android\Android Studio\jre

In file locator directory window, right-click on "This PC" ->

Properties -> Advanced System Settings -> Environment Variables... -> System Variables

click on the New... button under System Variables, then type and paste respectively:

.......Variable name: JAVA_HOME

.......Variable value: C:\Program Files\Android\Android Studio\jre

and hit OK buttons to close out.

Some installations may require JRE_HOME to be set as well, the same way.

To check, open a NEW black console window, then type echo %JAVA_HOME% . You should get back the full path you typed into the system variable. Windows 10 seems to support spaces in the filename paths for system variables very well, and does not seem to need ~tilde eliding.

I know that question is a bit old but

In root of project where Pipfile is located you could run

pipenv --venv

which returns

/Users/your_user_name/.local/share/virtualenvs/model-N-S4uBGU

and then remove this env by typing

rm -rf /Users/your_user_name/.local/share/virtualenvs/model-N-S4uBGU

I had this problem too. It turned out I forgot to include one of the components in app.module.ts

• My solution is simple, don't look at the error notification in Build - Run tasks (which should be Execution failed for task ':app:compileDebugJavaWithJavac')

• Just fix all errors in the Java Compiler section below it.

Another option is to add it to the jest.config.js file after the module.exports definition:

process.env = Object.assign(process.env, {
  VAR_NAME: 'varValue',
  VAR_NAME_2: 'varValue2'
});

This way it's not necessary to define the environment variables in each .spec file and they can be adjusted globally.

I solved it easily via running these codes:

 npm uninstall mongodb --save

 npm install [email protected] --save

Happy Coding!

Yes, ConfigurationManager.AppSettings is available in .NET Core 2.0 after referencing NuGet package System.Configuration.ConfigurationManager.

Credits goes to @JeroenMostert for giving me the solution.

53 stands for java-9, so it means that whatever class you have has been compiled with javac-9 and you try to run it with jre-8. Either re-compile that class with javac-8 or use the jre-9

This is the cleanest solution for me

import { Component, OnInit } from '@angular/core';
import { ActivatedRoute } from '@angular/router';

export class MyComponent {
  constructor(
    private route: ActivatedRoute
  ) {}

  ngOnInit() {
    const firstParam: string = this.route.snapshot.queryParamMap.get('firstParamKey');
    const secondParam: string = this.route.snapshot.queryParamMap.get('secondParamKey');
  }
}

Assuming that onMove is an event handler, it is likely that its context is something other than the instance of MyContainer, i.e. this points to something different.

You can manually bind the context of the function during the construction of the instance via Function.bind:

class MyContainer extends Component {
  constructor(props) {
    super(props);

    this.onMove = this.onMove.bind(this);

    this.test = "this is a test";
  }

  onMove() {
    console.log(this.test);
  }
}

Also, test !== testVariable.

Weird thing for me was that I had the provider:[], but the HTML tag that uses the provider was what was causing the error. I'm referring to the red box below:

It turns out I had two classes in different components with the same "employee-list.component.ts" filename and so the project compiled fine, but the references were all messed up.

In PostMan we have ->Pre-request Script. Paste the Below snippet.

const dateNow = new Date();
postman.setGlobalVariable("todayDate", dateNow.toLocaleDateString());

And now we are ready to use.

{
"firstName": "SANKAR",
"lastName": "B",
"email": "[email protected]",
"creationDate": "{{todayDate}}"
}

If you are using JPA Entity classes then use the below snippet

    @JsonFormat(pattern="MM/dd/yyyy")
    @Column(name = "creation_date")
    private Date creationDate;

enter image description here enter image description here

Many answer above are correct but same time convoluted with other aspects of authN/authZ. What actually resolves the exception in question is this line:

services.AddScheme<YourAuthenticationOptions, YourAuthenticationHandler>(YourAuthenticationSchemeName, options =>
    {
        options.YourProperty = yourValue;
    })

????

source activate

????

source deactivate

You are getting error for HttpClient so, you are missing HttpClientModule for that.

You should import it in app.module.ts file like this -

import { HttpClientModule } from '@angular/common/http';

and mention it in the NgModule Decorator like this -

@NgModule({
...
imports:[ HttpClientModule ]
...
})

If this even doesn't work try clearing cookies of the browser and try restarting your server. Hopefully it may work, I was getting the same error.

I am using Android Studio 3.0 and was facing the same problem. I add this to my gradle:

multiDexEnabled true

And it worked!

Example

android {
    compileSdkVersion 27
    buildToolsVersion '27.0.1'
    defaultConfig {
        applicationId "com.xx.xxx"
        minSdkVersion 15
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        multiDexEnabled true //Add this
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            shrinkResources true
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

And clean the project.

https://adoptopenjdk.net currently supports all distributions of JDK from version 8 onwards. For example https://adoptopenjdk.net/releases.html#x64_win

Here's an example of how I was able to use JDK version 8 with sdkmanager and much more: https://travis-ci.com/mmcc007/screenshots/builds/109365628

For JDK 9 (and I think 10, and possibly 11, but not 12 and beyond), the following should work to get sdkmanager working:

export SDKMANAGER_OPTS="--add-modules java.se.ee"
sdkmanager --list

I took the following approach, which uses a simple modal progress indicator widget that wraps whatever you want to make modal during an async call.

The example in the package also addresses how to handle form validation while making async calls to validate the form (see flutter/issues/9688 for details of this problem). For example, without leaving the form, this async form validation method can be used to validate a new user name against existing names in a database while signing up.

https://pub.dartlang.org/packages/modal_progress_hud

Here is the demo of the example provided with the package (with source code):

Example could be adapted to other modal progress indicator behaviour (like different animations, additional text in modal, etc..).

For me this problem occurred because I had a some invalid character in my Groovy script. In our case this was an extra blank line after the closing bracket of the script.

For ASP.NET Core 3.1 you can follow this guide:

https://docs.microsoft.com/en-us/aspnet/core/fundamentals/configuration/?view=aspnetcore-3.1

When you create a new ASP.NET Core 3.1 project you will have the following configuration line in Program.cs:

Host.CreateDefaultBuilder(args)

This enables the following:

1. ChainedConfigurationProvider : Adds an existing IConfiguration as a source. In the default configuration case, adds the host configuration and setting it as the first source for the app configuration.
2. appsettings.json using the JSON configuration provider.
3. appsettings.Environment.json using the JSON configuration provider. For example, appsettings.Production.json and appsettings.Development.json.
4. App secrets when the app runs in the Development environment.
5. Environment variables using the Environment Variables configuration provider.
6. Command-line arguments using the Command-line configuration provider.

This means you can inject IConfiguration and fetch values with a string key, even nested values. Like IConfiguration["Parent:Child"];

Example:

appsettings.json

{
  "ApplicationInsights":
    {
        "Instrumentationkey":"putrealikeyhere"
    }
}

WeatherForecast.cs

[ApiController]
[Route("[controller]")]
public class WeatherForecastController : ControllerBase
{
    private static readonly string[] Summaries = new[]
    {
        "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
    };

    private readonly ILogger<WeatherForecastController> _logger;
    private readonly IConfiguration _configuration;

    public WeatherForecastController(ILogger<WeatherForecastController> logger, IConfiguration configuration)
    {
        _logger = logger;
        _configuration = configuration;
    }

    [HttpGet]
    public IEnumerable<WeatherForecast> Get()
    {
        var key = _configuration["ApplicationInsights:InstrumentationKey"];

        var rng = new Random();
        return Enumerable.Range(1, 5).Select(index => new WeatherForecast
        {
            Date = DateTime.Now.AddDays(index),
            TemperatureC = rng.Next(-20, 55),
            Summary = Summaries[rng.Next(Summaries.Length)]
        })
        .ToArray();
    }
}

HttpClient.get() applies res.json() automatically and returns Observable<HttpResponse<string>>. You no longer need to call this function yourself.

See Difference between HTTP and HTTPClient in angular 4?

The reason why Python base environment is unable to import Tensorflow is that Anaconda does not store the tensorflow package in the base environment.

create a new separate environment in Anaconda dedicated to TensorFlow as follows:

conda create -n newenvt anaconda python=python_version

replace python_version by your python version

activate the new environment as follows:

activate newenvt

Then install tensorflow into the new environment (newenvt) as follows:

conda install tensorflow

Now you can check it by issuing the following python code and it will work fine.

import tensorflow

You have a typo in the import in your LoginComponent's file

import { Component } from '@angular/Core';

It's lowercase c, not uppercase

import { Component } from '@angular/core';

I ran into same issue when running:

$ /Users/<username>/Library/Android/sdk/tools/bin/sdkmanager "platforms;android-28" "build-tools;28.0.3"_

I solved it as

$ echo $JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk-11.0.1.jdk/Contents/Home    

$ ls /Library/Java/JavaVirtualMachines/

jdk-11.0.1.jdk      
jdk1.8.0_202.jdk

Change Java to use 1.8

$ export JAVA_HOME='/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home'

Then the same command runs fine

$ /Users/<username>/Library/Android/sdk/tools/bin/sdkmanager "platforms;android-28" "build-tools;28.0.3"

Just an update for .NET core 2.0 users, you can specify application configuration after the call to CreateDefaultBuilder:

public class Program
{
   public static void Main(string[] args)
   {
      BuildWebHost(args).Run();
   }

   public static IWebHost BuildWebHost(string[] args) =>
      WebHost.CreateDefaultBuilder(args)
             .ConfigureAppConfiguration(ConfigConfiguration)
             .UseStartup<Startup>()
             .Build();

   static void ConfigConfiguration(WebHostBuilderContext ctx, IConfigurationBuilder config)
   {
            config.SetBasePath(Directory.GetCurrentDirectory())
                .AddJsonFile("config.json", optional: false, reloadOnChange: true)
                .AddJsonFile($"config.{ctx.HostingEnvironment.EnvironmentName}.json", optional: true, reloadOnChange: true);

   }
 }

I solved this problem in a completely different way.

Package installer = Conda (Miniconda)
List of available envs = base, djenv(Django environment created for keeping project related modules).

When I was using the command line to activate the djenv using conda activate djenv, the base environment was already activated. I did not notice that and when djenv was activated, (djenv) was being displayed at the beginning of the prompt on the command line. When i tired executing , python manage.py migrate, this happened.
ImportError: Couldn't import Django. Are you sure it's installed and available on your PYTHONPATH environment variable? Did you forget to activate a virtual environment?

I deactivated the current environment, i.e conda deactivate. This deactivated djenv. Then, i deactivated the base environment.
After that, I again activated djenv. And the command worked like a charm!!

If someone is facing a similar issue, I hope you should consider trying this as well. Maybe it helps.

total edge case here: I had this issue installing an Arch AUR PKGBUILD file manually. In my case I needed to delete the 'pkg', 'src' and 'node_modules' folders, then it built fine without this npm error.

I tried a lot of stuff the guys informed here, without success. After, I just realized I was using the Deno Support for VSCode extension. I uninstalled it and a restart was required. After restart the problem was solved.

A quick solution from the internet search was npm config set strict-ssl false, luckily it worked. But as a part of my work environment, I am restricted to set the strict-ssl flag to false.

Later I found a safe and working solution,

npm config set registry http://registry.npmjs.org/  

this worked perfectly and I got a success message Happy Hacking! by not setting the strict-ssl flag to false.

I had a similar issue which i solved by making two changes

1. added below entry in application.yaml file

   spring: jackson: serialization.write_dates_as_timestamps: false

2. add below two annotations in pojo

   1. @JsonDeserialize(using = LocalDateDeserializer.class)
   2. @JsonSerialize(using = LocalDateSerializer.class)

   sample example

   import com.fasterxml.jackson.databind.annotation.JsonDeserialize; import com.fasterxml.jackson.databind.annotation.JsonSerialize; public class Customer { //your fields ... @JsonDeserialize(using = LocalDateDeserializer.class) @JsonSerialize(using = LocalDateSerializer.class) protected LocalDate birthdate; }

then the following json requests worked for me

1. sample request format as string

{ "birthdate": "2019-11-28" }

2. sample request format as array

{ "birthdate":[2019,11,18] }

Hope it helps!!

I found the same issue with Node 12.19.0 and yarn 1.22.5 on Windows 10. I fixed the problem by installing latest stable python 64-bit with adding the path to Environment Variables during python installation. After python installation, I restarted my machine for env vars.

There is actually a default pattern that you can employ to achieve this result without having to implement IDesignTimeDbContextFactory and do any config file copying.

It is detailed in this doc, which also discusses the other ways in which the framework will attempt to instantiate your DbContext at design time.

Specifically, you leverage a new hook, in this case a static method of the form public static IWebHost BuildWebHost(string[] args). The documentation implies otherwise, but this method can live in whichever class houses your entry point (see src). Implementing this is part of the guidance in the 1.x to 2.x migration document and what's not completely obvious looking at the code is that the call to WebHost.CreateDefaultBuilder(args) is, among other things, connecting your configuration in the default pattern that new projects start with. That's all you need to get the configuration to be used by the design time services like migrations.

Here's more detail on what's going on deep down in there:

While adding a migration, when the framework attempts to create your DbContext, it first adds any IDesignTimeDbContextFactory implementations it finds to a collection of factory methods that can be used to create your context, then it gets your configured services via the static hook discussed earlier and looks for any context types registered with a DbContextOptions (which happens in your Startup.ConfigureServices when you use AddDbContext or AddDbContextPool) and adds those factories. Finally, it looks through the assembly for any DbContext derived classes and creates a factory method that just calls Activator.CreateInstance as a final hail mary.

The order of precedence that the framework uses is the same as above. Thus, if you have IDesignTimeDbContextFactory implemented, it will override the hook mentioned above. For most common scenarios though, you won't need IDesignTimeDbContextFactory.

On line 10 there's a space between s and t. It should be one word: stylesheet.

Try using Slivers:

Container(
    child: CustomScrollView(
      slivers: <Widget>[
        SliverList(
          delegate: SliverChildListDelegate(
            [
              HeaderWidget("Header 1"),
              HeaderWidget("Header 2"),
              HeaderWidget("Header 3"),
              HeaderWidget("Header 4"),
            ],
          ),
        ),
        SliverList(
          delegate: SliverChildListDelegate(
            [
              BodyWidget(Colors.blue),
              BodyWidget(Colors.red),
              BodyWidget(Colors.green),
              BodyWidget(Colors.orange),
              BodyWidget(Colors.blue),
              BodyWidget(Colors.red),
            ],
          ),
        ),
        SliverGrid(
          gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 2),
          delegate: SliverChildListDelegate(
            [
              BodyWidget(Colors.blue),
              BodyWidget(Colors.green),
              BodyWidget(Colors.yellow),
              BodyWidget(Colors.orange),
              BodyWidget(Colors.blue),
              BodyWidget(Colors.red),
            ],
          ),
        ),
      ],
    ),
  ),
)

You must return something

instead of this (this is not the right way)

const def = (props) => { <div></div> };

try

const def = (props) => ( <div></div> );

or use return statement

const def = (props) => { return  <div></div> };

First try removing the '\bin' from the path and set the home directory JAVA_HOME as below: JAVA_HOME : C:\Program Files\Java\jdk1.8.0_131

Second Update System PATH:

1. In “Environment Variables” window under “System variables” select Path
2. Click on “Edit…”
3. In “Edit environment variable” window click “New”
4. Type in %JAVA_HOME%\bin

Third restart your docker.

Refer to the link for setting the java path in windows.

The image you're using is Alpine based, so you can't use apt-get because it's Ubuntu's package manager.

To fix this just use:

apk update and apk add

Had this when I accidentally was calling

mapper.convertValue(...)

instead of

mapper.readValue(...)

So, just make sure you call correct method, since argument are same and IDE can find many things

I ran into the same situation where commands such as git diff origin or git diff origin master produced the error reported in the question, namely Fatal: ambiguous argument...

To resolve the situation, I ran the command

git symbolic-ref refs/remotes/origin/HEAD refs/remotes/origin/master

to set refs/remotes/origin/HEAD to point to the origin/master branch.

Before running this command, the output of git branch -a was:

* master
  remotes/origin/master

After running the command, the error no longer happened and the output of git branch -a was:

* master
  remotes/origin/HEAD -> origin/master
  remotes/origin/master

(Other answers have already identified that the source of the error is HEAD not being set for origin. But I thought it helpful to provide a command which may be used to fix the error in question, although it may be obvious to some users.)

Additional information:

For anybody inclined to experiment and go back and forth between setting and unsetting refs/remotes/origin/HEAD, here are some examples.

To unset:
git remote set-head origin --delete

To set:
(additional ways, besides the way shown at the start of this answer)
git remote set-head origin master to set origin/head explicitly
OR
git remote set-head origin --auto to query the remote and automatically set origin/HEAD to the remote's current branch.

References:

• This SO Answer
• This SO Comment and its associated answer
• git remote --help see set-head description
• git symbolic-ref --help

You should be using event.currentTarget. React is mirroring the difference between currentTarget (element the event is attached to) and target (the element the event is currently happening on). Since this is a mouse event, type-wise the two could be different, even if it doesn't make sense for a click.

https://github.com/facebook/react/issues/5733 https://developer.mozilla.org/en-US/docs/Web/API/Event/currentTarget

To get started with dotnet core, SqlServer and EF core the below DBContextOptionsBuilder would sufice and you do not need to create App.config file. Do not forget to change the sever address and database name in the below code.

protected override void OnConfiguring(DbContextOptionsBuilder options)
        => options.UseSqlServer(@"Server=(localdb)\MSSQLLocalDB;Database=TestDB;Trusted_Connection=True;");

To use the EF core SqlServer provider and compile the above code install the EF SqlServer package

dotnet add package Microsoft.EntityFrameworkCore.SqlServer

After compilation before running the code do the following for the first time

dotnet tool install --global dotnet-ef
dotnet add package Microsoft.EntityFrameworkCore.Design
dotnet ef migrations add InitialCreate
dotnet ef database update

To run the code

dotnet run

You can use unfocus() method from FocusNode class.

import 'package:flutter/material.dart';

class MyHomePage extends StatefulWidget {
  MyHomePageState createState() => new MyHomePageState();
}

class MyHomePageState extends State<MyHomePage> {
  TextEditingController _controller = new TextEditingController();
  FocusNode _focusNode = new FocusNode(); //1 - declare and initialize variable

  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      appBar: new AppBar(),
      floatingActionButton: new FloatingActionButton(
        child: new Icon(Icons.send),
        onPressed: () {
            _focusNode.unfocus(); //3 - call this method here
        },
      ),
      body: new Container(
        alignment: FractionalOffset.center,
        padding: new EdgeInsets.all(20.0),
        child: new TextFormField(
          controller: _controller,
          focusNode: _focusNode, //2 - assign it to your TextFormField
          decoration: new InputDecoration(labelText: 'Example Text'),
        ),
      ),
    );
  }
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      home: new MyHomePage(),
    );
  }
}

void main() {
  runApp(new MyApp());
}

Can try with below code

 WebDriverWait wait = new WebDriverWait(driver, 30);

Pass other element would receive the click:<a class="navbar-brand" href="#"></a>

    boolean invisiable = wait.until(ExpectedConditions
            .invisibilityOfElementLocated(By.xpath("//div[@class='navbar-brand']")));

Pass clickable button id as shown below

    if (invisiable) {
        WebElement ele = driver.findElement(By.xpath("//div[@id='button']");
        ele.click();
    }

In my case, Angular 6, I renamed folder and file names of my modules from google.map.module.ts to google-map.module.ts. In order to compile without overlay with old module and component names, ng compiler compiled with no error.

In app.routes.ts:

     {
        path: 'calendar', 
        loadChildren: './views/app-calendar/app-calendar.module#AppCalendarModule', 
        data: { title: 'Calendar', breadcrumb: 'CALENDAR'}
      },

In google-map.routing.ts

import { GoogleMapComponent } from './google-map.component';
const routes: Routes = [
  {
    path: '', component: GoogleMapComponent, data: { title: 'Coupon Map' }
  }
];
@NgModule({
    exports: [RouterModule],
    imports: [RouterModule.forChild(routes)]
})
export class GoogleMapRoutingModule { }

In google-map.module.ts:

import { GoogleMapRoutingModule } from './google-map.routing';
@NgModule({
  imports: [
    CommonModule,
    FormsModule,
    CommonModule,
    GoogleMapRoutingModule,
  ],
  exports: [GoogleMapComponent],
  declarations: [GoogleMapComponent]
})
export class GoogleMapModule { }

The problem is the import of ProjectsListComponent in your ProjectsModule. You should not import that, but add it to the export array, if you want to use it outside of your ProjectsModule.

Other issues are your project routes. You should add these to an exportable variable, otherwise it's not AOT compatible. And you should -never- import the BrowserModule anywhere else but in your AppModule. Use the CommonModule to get access to the *ngIf, *ngFor...etc directives:

@NgModule({
  declarations: [
     ProjectsListComponent
  ],
  imports: [
    CommonModule,
    RouterModule.forChild(ProjectRoutes)
  ],
  exports: [
     ProjectsListComponent
  ]
})

export class ProjectsModule {}

project.routes.ts

export const ProjectRoutes: Routes = [
      { path: 'projects', component: ProjectsListComponent }
]

Try to use the latest com.fasterxml.jackson.core/jackson-databind. I upgraded it to 2.9.4 and it works now.

<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.9.4</version>
</dependency>

The issue caused by the docker container which exits as soon as the "start" process finishes. i added a command that runs forever and it worked. This issue mentioned here

I was having this same issue while my JAVA_HOME system variable was pointing to C:\Program Files\Java\jdk1.8.0_171\bin and my PATH entry consisted of just %JAVA_HOME%.

I changed my JAVA_HOME variable to exclude the bin folder (C:\Program Files\Java\jdk1.8.0_171), and added the bin folder to the system PATH variable: %JAVA_HOME%\bin,

For any one who looks for answer yet:

1.Add jackson-databind library to your build tools like Gradle or Maven

2.in your Code:

ObjectMapper mapper = new ObjectMapper();

List<Student> studentList = new ArrayList<>();

studentList = Arrays.asList(mapper.readValue(jsonStringArray, Student[].class));

You should wrap your Container in a Flexible to let your Row know that it's ok for the Container to be narrower than its intrinsic width. Expanded will also work.

Flexible(
  child: new Container(
    padding: new EdgeInsets.only(right: 13.0),
    child: new Text(
      'Text largeeeeeeeeeeeeeeeeeeeeeee',
      overflow: TextOverflow.ellipsis,
      style: new TextStyle(
        fontSize: 13.0,
        fontFamily: 'Roboto',
        color: new Color(0xFF212121),
        fontWeight: FontWeight.bold,
      ),
    ),
  ),
),

I have just launched anaconda-navigator and run the conda commands from there.

Creating colnames with iterating

df = pd.DataFrame(columns=['colname_' + str(i) for i in range(5)])
print(df)

# Empty DataFrame
# Columns: [colname_0, colname_1, colname_2, colname_3, colname_4]
# Index: []

to_html() operations

print(df.to_html())

# <table border="1" class="dataframe">
#   <thead>
#     <tr style="text-align: right;">
#       <th></th>
#       <th>colname_0</th>
#       <th>colname_1</th>
#       <th>colname_2</th>
#       <th>colname_3</th>
#       <th>colname_4</th>
#     </tr>
#   </thead>
#   <tbody>
#   </tbody>
# </table>

this seems working

print(type(df.to_html()))
# <class 'str'>

The problem is caused by

when you create df like this

df = pd.DataFrame(columns=COLUMN_NAMES)

it has 0 rows × n columns, you need to create at least one row index by

df = pd.DataFrame(columns=COLUMN_NAMES, index=[0])

now it has 1 rows × n columns. You are be able to add data. Otherwise its df that only consist colnames object(like a string list).

Updated 2018

Here is another variation on the Bootstrap 4.1 Navbar with multi-level dropdown. This one uses minimal CSS for the submenu, and can be re-positioned as desired:

https://www.codeply.com/go/nG6iMAmI2X

.dropdown-submenu {
  position: relative;
}

.dropdown-submenu .dropdown-menu {
  top: 0;
  left: 100%;
  margin-top: -1px;
}

jQuery to control display of submenus:

$('.dropdown-submenu > a').on("click", function(e) {
    var submenu = $(this);
    $('.dropdown-submenu .dropdown-menu').removeClass('show');
    submenu.next('.dropdown-menu').addClass('show');
    e.stopPropagation();
});

$('.dropdown').on("hidden.bs.dropdown", function() {
    // hide any open menus when parent closes
    $('.dropdown-menu.show').removeClass('show');
});

See this answer for activating the Bootstrap 4 submenus on hover

Using the code example below will return to you the bitmap :

BitmapFactory.decodeStream(getContentResolver().openInputStream(Uri.parse("content://com.whatsapp.provider.media/item/128752")))

After that you all know what you have to do.

For me even with [formGroup] the error was popping up "Cannot find control with name:''".
It got fixed when I added ngModel Value to the input box along with formControlName="fileName"

  <form class="upload-form" [formGroup]="UploadForm">
  <div class="row">
    <div class="form-group col-sm-6">
      <label for="fileName">File Name</label>
      <!-- *** *** *** Adding [(ngModel)]="FileName" fixed the issue-->
      <input type="text" class="form-control" id="fileName" [(ngModel)]="FileName"
        placeholder="Enter file name" formControlName="fileName"> 
    </div>
    <div class="form-group col-sm-6">
      <label for="selectedType">File Type</label>
      <select class="form-control" formControlName="selectedType" id="selectedType" 
        (change)="TypeChanged(selectedType)" name="selectedType" disabled="true">
        <option>Type 1</option>
        <option>Type 2</option>
      </select>
    </div>
  </div>
  <div class="form-group">
    <label for="fileUploader">Select {{selectedType}} file</label>
    <input type="file" class="form-control-file" id="fileUploader" (change)="onFileSelected($event)">
  </div>
  <div class="w-80 text-right mt-3">
    <button class="btn btn-primary mb-2 search-button cancel-button" (click)="cancelUpload()">Cancel</button>
    <button class="btn btn-primary mb-2 search-button" (click)="uploadFrmwrFile()">Upload</button>
  </div>
 </form>

And in the controller

ngOnInit() {
this.UploadForm= new FormGroup({
  fileName: new FormControl({value: this.FileName}),
  selectedType: new FormControl({value: this.selectedType, disabled: true}, Validators.required),
  frmwareFile: new FormControl({value: ['']})
});
}

According to the matplotlib legend documentation:

The location can also be a 2-tuple giving the coordinates of the lower-left corner of the legend in axes coordinates (in which case bbox_to_anchor will be ignored).

Thus, one could use:

plt.legend(loc=(x, y))

to set the legend's lower left corner to the specified (x, y) position.

The

Microsoft.AspNetCore.Cors

will allow you to do CORS with built-in features, but it does not handle OPTIONS request. The best workaround so far is creating a new Middleware as suggested in a previous post. Check the answer marked as correct in the following post:

Enable OPTIONS header for CORS on .NET Core Web API

We can use Container and mark its height as infinity

body: Container(
      height: double.infinity,
      width: double.infinity,
      child: FittedBox(
        fit: BoxFit.cover,
        child: Image.network(
          'https://cdn.pixabay.com/photo/2016/10/02/22/17/red-t-shirt-1710578_1280.jpg',
        ),
      ),
    ));

Output:

Choose which DI to inject stuff into Jersey:

Spring 4:

<dependency>
  <groupId>org.glassfish.jersey.ext</groupId>
  <artifactId>jersey-spring4</artifactId>
</dependency>

Spring 3:

<dependency>
  <groupId>org.glassfish.jersey.ext</groupId>
  <artifactId>jersey-spring3</artifactId>
</dependency>

HK2:

<dependency>
    <groupId>org.glassfish.jersey.inject</groupId>
    <artifactId>jersey-hk2</artifactId>
</dependency>

The following will produce, in the output directory,

• all the package references
• the output assembly
• the bootstrapping exe

But it does not contain all .NET Core runtime assemblies.

<PropertyGroup>
  <Temp>$(SolutionDir)\packaging\</Temp>
</PropertyGroup>

<ItemGroup>
  <BootStrapFiles Include="$(Temp)hostpolicy.dll;$(Temp)$(ProjectName).exe;$(Temp)hostfxr.dll;"/>
</ItemGroup>

<Target Name="GenerateNetcoreExe"
        AfterTargets="Build"
        Condition="'$(IsNestedBuild)' != 'true'">
  <RemoveDir Directories="$(Temp)" />
  <Exec
    ConsoleToMSBuild="true"
    Command="dotnet build $(ProjectPath) -r win-x64 /p:CopyLocalLockFileAssemblies=false;IsNestedBuild=true --output $(Temp)" >
    <Output TaskParameter="ConsoleOutput" PropertyName="OutputOfExec" />
  </Exec>
  <Copy
    SourceFiles="@(BootStrapFiles)"
    DestinationFolder="$(OutputPath)"
  />

</Target>

I wrapped it up in a sample here: https://github.com/SimonCropp/NetCoreConsole

I have this problem when update android studio from 3.2 to 3.3 and test every answers that i none of them was working. at the end i enabled Maven repository and its work.

If you are using Angular CLI: 7.3.3 What I did is, On my assets folder I put my fake json data then on my services I just did this.

const API_URL = './assets/data/db.json';

getAllPassengers(): Observable<PassengersInt[]> {
    return this.http.get<PassengersInt[]>(API_URL);
  }

do docker cp file.sql <CONTAINER NAME>:/file.sql first

then docker exec -i <CONTAINER NAME> mysql -u user -p

then inside mysql container execute source \file.sql

The following code worked for me:

echo userInput

I want to add my solution to above, maybe it helps someone. When i create a field on a model via Room and do not generate getter/setter for the field. As a result project is not compiling and no clear errors.

I just experienced this issue while using the Windows Subsystem for Linux (WSL2), so I will also share this solution.

My objective was to render the output from webpack both at wsl:3000 and localhost:3000, thereby creating an alternate local endpoint.

As you might expect, this initially caused the "Invalid Host header" error to arise. Nothing seemed to help until I added the devServer config option shown below.

module.exports = {
  //...
  devServer: {
    proxy: [
      {
        context: ['http://wsl:3000'],
        target: 'http://localhost:3000',
      },
    ],
  },
}

This fixed the "bug" without introducing any security risks.

Reference: webpack DevServer docs

I resolve this error by below step :

1 : first of all write this code in terminal :

...$ which python3
/usr/bin/python3

2 : Then :

"python.pythonPath": "/users/bin/python",

done.

You're thinking too much in pure Javascript. Get rid of your listeners on those React lifecycle methods and use event.key instead of event.keyCode (because this is not a JS event object, it is a React SyntheticEvent). Your entire component could be as simple as this (assuming you haven't bound your methods in a constructor).

onKeyPressed(e) {
  console.log(e.key);
}

render() {
  let player = this.props.boards.dungeons[this.props.boards.currentBoard].player;
  return (
    <div 
      className="player"
      style={{ position: "absolute" }}
      onKeyDown={this.onKeyPressed}
    >
      <div className="light-circle">
        <div className="image-wrapper">
          <img src={IMG_URL+player.img} />
        </div>
      </div>
    </div>
  )
}

None of the answers worked until I removed the HasNoKey() method from the entity. Dont forget to remove this from your data context or the [Key] attribute will not fix anything.

My issue was manifest when I added *ngIf but that wasn't the cause. The error was caused by changing the model in {{}} tags then trying to display the changed model in the *ngIf statement later on. Here's an example:

<div>{{changeMyModelValue()}}</div> <!--don't do this!  or you could get error: ExpressionChangedAfterItHasBeenCheckedError-->
....
<div *ngIf="true">{{myModel.value}}</div>

To fix the issue, I changed where I called changeMyModelValue() to a place that made more sense.

In my situation I wanted changeMyModelValue() called whenever a child component changed the data. This required I create and emit an event in the child component so the parent could handle it (by calling changeMyModelValue(). see https://angular.io/guide/component-interaction#parent-listens-for-child-event

The best option I found is to set the python.venvPath parameter in vscode settings to your anaconda envs folder.

"python.venvPath": "/Users/[...]/Anaconda3/envs"

Then if you bring up the command palette (ctl + shift + P on windows/linux, cmd + shift + P on mac) and type Python: Select Workspace Interpreter all your envs will show up and you can select which env to use.

The python extension will also need to be installed for the Select Workspace Interpreter option.

Note: The Select Workspace Interpreter takes around 10 seconds to come up on my computer using the current version of VSCode.

In my case, the issue occurred after I switched from a git branch to another, references to some old files remained in the scripts inside "node_modules/.cache" directory.
Deleting "node_modules", "build" directories and "package-lock.json" file then issuing "npm install" command has fixed the issue for me

For those still struggling with the error, make sure that you also import ReactiveFormsModule in your component 's module.ts file

meaning that you will import your ReactiveFormsModule in your app.module.ts and also in your mycomponent.module.ts file

Although it's a long time after this question is being asked since I was searching so much for the same problem and couldn't find the extant solutions helpful, I write what fixed my trouble for anyone with the same issue: The point is, Jupyter should be installed in your virtual environment, meaning, after activating the tensorflow environment, run the following in the command prompt (in tensorflow virtual environment):

conda install jupyter
jupyter notebook

and then the jupyter will pop up.

Adding this configuration in application.properties file to fixed this issue easily.

spring.jpa.properties.hibernate.globally_quoted_identifiers=true

According to @Shovalt's answer, but in short:

Alternatively you could use the following lines of code

    from sklearn.metrics import f1_score
    metrics.f1_score(y_test, y_pred, labels=np.unique(y_pred))

This should remove your warning and give you the result you wanted, because it no longer considers the difference between the sets, by using the unique mode.

I could use the GetBody from Request package.

Look this comment in source code from request.go in net/http:

GetBody defines an optional func to return a new copy of Body. It is used for client requests when a redirect requires reading the body more than once. Use of GetBody still requires setting Body. For server requests it is unused."

GetBody func() (io.ReadCloser, error)

This way you can get the body request without make it empty.

Sample:

getBody := request.GetBody
copyBody, err := getBody()
if err != nil {
    // Do something return err
}
http.DefaultClient.Do(request)

The systemd way to do this is to have the process "talk back" when it's setup somehow, like by opening a socket or sending a notification (or a parent script exiting). Which is of course not always straight-forward especially with third party stuff :|

You might be able to do something inline like

ExecStart=/bin/bash -c '/bin/start_cassandra &; do_bash_loop_waiting_for_it_to_come_up_here'

or a script that does the same. Or put do_bash_loop_waiting_for_it_to_come_up_here in an ExecStartPost

Or create a helper .service that waits for it to come up, so the helper service depends on cassandra, and waits for it to come up, then your other process can depend on the helper service.

(May want to increase TimeoutStartSec from the default 90s as well)

update Angular 5

ngOutletContext was renamed to ngTemplateOutletContext

See also https://github.com/angular/angular/blob/master/CHANGELOG.md#500-beta5-2017-08-29

original

Templates (<template>, or <ng-template> since 4.x) are added as embedded views and get passed a context.

With let-col the context property $implicit is made available as col within the template for bindings. With let-foo="bar" the context property bar is made available as foo.

For example if you add a template

<ng-template #myTemplate let-col let-foo="bar">
  <div>{{col}}</div>
  <div>{{foo}}</div>
</ng-template>

<!-- render above template with a custom context -->
<ng-template [ngTemplateOutlet]="myTemplate"
             [ngTemplateOutletContext]="{
                                           $implicit: 'some col value',
                                           bar: 'some bar value'
                                        }"
></ng-template>

See also this answer and ViewContainerRef#createEmbeddedView.

*ngFor also works this way. The canonical syntax makes this more obvious

<ng-template ngFor let-item [ngForOf]="items" let-i="index" let-odd="odd">
  <div>{{item}}</div>
</ng-template>

where NgFor adds the template as embedded view to the DOM for each item of items and adds a few values (item, index, odd) to the context.

See also Using $implict to pass multiple parameters

My answer is based on the one provided by @x-yuri; but my scenario it's a little bit different. I wanted an image containing the script, not bind without needing to bind-mount it.

mongo-init.sh -- don't know whether or not is need but but I ran chmod +x mongo-init.sh also:

#!/bin/bash
# https://stackoverflow.com/a/53522699
# https://stackoverflow.com/a/37811764
mongo -- "$MONGO_INITDB_DATABASE" <<EOF
  var rootUser = '$MONGO_INITDB_ROOT_USERNAME';
  var rootPassword = '$MONGO_INITDB_ROOT_PASSWORD';
  var user = '$MONGO_INITDB_USERNAME';
  var passwd = '$MONGO_INITDB_PASSWORD';

  var admin = db.getSiblingDB('admin');

  admin.auth(rootUser, rootPassword);
  db.createUser({
    user: user,
    pwd: passwd,
    roles: [
      {
        role: "root",
        db: "admin"
      }
    ]
  });
EOF

Dockerfile:

FROM mongo:3.6

COPY mongo-init.sh /docker-entrypoint-initdb.d/mongo-init.sh

CMD [ "/docker-entrypoint-initdb.d/mongo-init.sh" ]

docker-compose.yml:

version: '3'

services:
    mongodb:
        build: .
        container_name: mongodb-test
        environment:
            - MONGO_INITDB_ROOT_USERNAME=root
            - MONGO_INITDB_ROOT_PASSWORD=example
            - MONGO_INITDB_USERNAME=myproject
            - MONGO_INITDB_PASSWORD=myproject
            - MONGO_INITDB_DATABASE=myproject

    myproject:
        image: myuser/myimage
        restart: on-failure
        container_name: myproject
        environment:
            - DB_URI=mongodb
            - DB_HOST=mongodb-test
            - DB_NAME=myproject
            - DB_USERNAME=myproject
            - DB_PASSWORD=myproject
            - DB_OPTIONS=
            - DB_PORT=27017            
        ports:
            - "80:80"

After that, I went ahead and publish this Dockefile as an image to use in other projects.

note: without adding the CMD it mongo throws: unbound variable error

Please do the import like below:

import { Router } from '@angular/Router';

The mistake that was being done was -> import { Router } from '@angular/router';

This is what you can do to source an .env (and .flaskenv) file in the pycharm flask/django console. It would also work for a normal python console of course.

1. Do pip install python-dotenv in your environment (the same as being pointed to by pycharm).

2. Go to: Settings > Build ,Execution, Deployment > Console > Flask/django Console

3. In "starting script" include something like this near the top:

   from dotenv import load_dotenv load_dotenv(verbose=True)

The .env file can look like this: export KEY=VALUE

It doesn't matter if one includes export or not for dotenv to read it.

As an alternative you could also source the .env file in the activate shell script for the respective virtual environement.

Http 415 Media Unsupported is responded back only when the content type header you are providing is not supported by the application.

With POSTMAN, the Content-type header you are sending is Content type 'multipart/form-data not application/json. While in the ajax code you are setting it correctly to application/json. Pass the correct Content-type header in POSTMAN and it will work.

From PHP 5.6 => PHP 7.1

$ sudo a2dismod php5.6
$ sudo a2enmod php7.1

for old linux versions

 $ sudo service apache2 restart

for more recent version

$ systemctl restart apache2

Easy and simple solution for MAC

My Issue was

cordova build android
ANDROID_HOME=/Users/jerilkuruvila/Library/Android/sdk
JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home
Error: Could not find gradle wrapper within Android SDK. Might need to update your Android SDK.
Looked here: /Users/jerilkuruvila/Library/Android/sdk/tools/templates/gradle/wrapper

Solution

jerilkuruvila@Jerils-ENIAC tools $ cd templates
-bash: cd: mkdir: No such file or directory
jerilkuruvila@Jerils-ENIAC tools $ mkdir templates
jerilkuruvila@Jerils-ENIAC tools $ cp -rf gradle templates/
jerilkuruvila@Jerils-ENIAC tools $ chmod a+x templates/

cordova build android again working now !!!

Activate your virtual environment then try collecting static files, that should work.

$ source venv/bin/activate
$ python manage.py collectstatic

The error is due to that you're only allowed to use pipeline steps inside the steps directive. One workaround that I know is to use the script step and wrap arbitrary pipeline script inside of it and save the result in the environment variable so that it can be used later.

So in your case:

pipeline {
    agent any
    stages {
        stage("foo") {
            steps {
                script {
                    env.FILENAME = readFile 'output.txt'
                }
                echo "${env.FILENAME}"
            }
        }
    }
}

If getting this error trying to build .Net Core 2.0 app on VSTS then ensure your build definition is using the Hosted VS2017 Agent queue.

Bootstrap has text-center to center a text. For example

<div class="container text-center">

You change the following

<div class="row justify-content-center align-items-center">

to the following

<div class="row text-center">

I know the topic is a bit old and seems stale, but anyway I was able to use these options:

    deploy:
      resources:
        limits:
          cpus: '0.001'
          memory: 50M

when using 3.7 version of docker-compose

What helped in my case, was using this command:

docker-compose --compatibility up

--compatibility flag stands for (taken from the documentation):

If set, Compose will attempt to convert deploy keys in v3 files to their non-Swarm equivalent

Think it's great, that I don't have to revert my docker-compose file back to v2.

The Jenkinsfile is written in groovy which uses the Java (and C) form of comments:

/* this
   is a
   multi-line comment */

// this is a single line comment

In windows, if you need the a ${PWD} env variable in your docker-compose.yml you can creat a .env file in the same directory as your docker-compose.yml file then insert manualy the location of your folder.

CMD (pwd_var.bat) :

echo PWD=%cd% >> .env

Powershell (pwd_var.ps1) :

$PSDefaultParameterValues['Out-File:Encoding'] = 'utf8'; echo "PWD=$(get-location).path" >> .env

There is more good features hear for docker-compose .env variables: https://docs.docker.com/compose/reference/envvars/ especially for the COMPOSE_CONVERT_WINDOWS_PATHS env variable that allow docker compose to accept windows path with baskslash "\".

When you want to share a file on windows, the file must exist before sharing it with the container.

You can rename your Conda env by just renaming the env folder. Here is the proof:

You can find your Conda env folder inside of C:\ProgramData\Anaconda3\envs or you can enter conda env list to see the list of conda envs and its location.

I know this is an old thread, but there is a particular case when this may happen:

If you are using AWS api gateway coupled with a VPC link, and if the Network Load Balancer has proxy protocol v2 enabled, a 400 Bad Request will happen as well.

Took me the whole afternoon to figure it out, so if it may help someone I'd be glad :)

Creating /etc/docker/daemon.json file and adding the below content and then doing a docker restart on CentOS 7 resolved the issue.

{
    "insecure-registries" : [ "hostname.cloudapp.net:5000" ]
}

<div style="width: 100%; overflow: scroll;"><table class="table table-striped table-bordered" style="font-size:12px">

This problem was created by a regression in a recent release. You can find the pull request that fixes this problem at https://github.com/facebook/react-native-fbsdk/pull/339

For the people like myself, who started recently: The loaders keyword is replaced with rules; even though it still represents the concept of loaders. So my webpack.config.js, for a React app, is as follows:

var webpack = require('webpack');
var path = require('path');

var BUILD_DIR = path.resolve(__dirname, 'src/client/public');
var APP_DIR = path.resolve(__dirname, 'src/client/app');

var config = {
  entry: APP_DIR + '/index.jsx',
  output: {
    path: BUILD_DIR,
    filename: 'bundle.js'
  },
  module : {
    rules : [
      {
        test : /\.jsx?/,
        include : APP_DIR,
        loader : 'babel-loader'
      }
    ]
  }
};

module.exports = config;

Use : instead of =

see the example below that gives an error

app.post('/mews', (req, res) => {
if (isValidMew(req.body)) {
    // insert into db
    const mew = {
        name = filter.clean(req.body.name.toString()),
        content = filter.clean(req.body.content.toString()),
        created: new Date()
    };

That gives Syntex Error: invalid shorthand proprty initializer.

Then i replace = with : that's solve this error.

app.post('/mews', (req, res) => {
if (isValidMew(req.body)) {
    // insert into db
    const mew = {
        name: filter.clean(req.body.name.toString()),
        content: filter.clean(req.body.content.toString()),
        created: new Date()
    };

I solved it by myself.

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>5.0.7.Final</version>
</dependency>

I ran into this issue after doing a manual react-native link of a dependency which didn't support auto link on RN 0.59+

The solution was to select the xcodeproj file under the Libraries folder in Xcode and then in Build Settings, change Header Search Paths to add these two (recursive):

$(SRCROOT)/../../../ios/Pods/Headers/Public/React-Core
$(SRCROOT)/../../../ios/Pods/Headers/Public

To avoid problems of side effects after changing env, especially using multiple nodes, it is better to set a temporary context.

One safe way to alter the environment is:

 withEnv(['MYTOOL_HOME=/usr/local/mytool']) {
    sh '$MYTOOL_HOME/bin/start'
 }

This approach does not poison the env after the command execution.

There is an open source project called auto-py-to-exe on GitHub. Actually it also just uses PyInstaller internally but since it is has a simple GUI that controls PyInstaller it may be a comfortable alternative. It can also output a standalone file in contrast to other solutions. They also provide a video showing how to set it up.

GUI:

Output:

You should follow the instructions provided in the documentation, using the web.config.

<aspNetCore processPath="dotnet"
        arguments=".\MyApp.dll"
        stdoutLogEnabled="false"
        stdoutLogFile="\\?\%home%\LogFiles\aspnetcore-stdout">
  <environmentVariables>
    <environmentVariable name="ASPNETCORE_ENVIRONMENT" value="Production" />
    <environmentVariable name="CONFIG_DIR" value="f:\application_config" />
  </environmentVariables>
</aspNetCore>

Note that you can also set other environment variables as well.

The ASP.NET Core Module allows you specify environment variables for the process specified in the processPath attribute by specifying them in one or more environmentVariable child elements of an environmentVariables collection element under the aspNetCore element. Environment variables set in this section take precedence over system environment variables for the process.

You were looking for help on installations with pip. You can find it with the following command:

pip install --help

Running pip install -e /path/to/package installs the package in a way, that you can edit the package, and when a new import call looks for it, it will import the edited package code. This can be very useful for package development.

The Spring security filter chain is a very complex and flexible engine.

Key filters in the chain are (in the order)

• SecurityContextPersistenceFilter (restores Authentication from JSESSIONID)
• UsernamePasswordAuthenticationFilter (performs authentication)
• ExceptionTranslationFilter (catch security exceptions from FilterSecurityInterceptor)
• FilterSecurityInterceptor (may throw authentication and authorization exceptions)

Looking at the current stable release 4.2.1 documentation, section 13.3 Filter Ordering you could see the whole filter chain's filter organization:

13.3 Filter Ordering

The order that filters are defined in the chain is very important. Irrespective of which filters you are actually using, the order should be as follows:

1. ChannelProcessingFilter, because it might need to redirect to a different protocol

2. SecurityContextPersistenceFilter, so a SecurityContext can be set up in the SecurityContextHolder at the beginning of a web request, and any changes to the SecurityContext can be copied to the HttpSession when the web request ends (ready for use with the next web request)

3. ConcurrentSessionFilter, because it uses the SecurityContextHolder functionality and needs to update the SessionRegistry to reflect ongoing requests from the principal

4. Authentication processing mechanisms - UsernamePasswordAuthenticationFilter, CasAuthenticationFilter, BasicAuthenticationFilter etc - so that the SecurityContextHolder can be modified to contain a valid Authentication request token

5. The SecurityContextHolderAwareRequestFilter, if you are using it to install a Spring Security aware HttpServletRequestWrapper into your servlet container

6. The JaasApiIntegrationFilter, if a JaasAuthenticationToken is in the SecurityContextHolder this will process the FilterChain as the Subject in the JaasAuthenticationToken

7. RememberMeAuthenticationFilter, so that if no earlier authentication processing mechanism updated the SecurityContextHolder, and the request presents a cookie that enables remember-me services to take place, a suitable remembered Authentication object will be put there

8. AnonymousAuthenticationFilter, so that if no earlier authentication processing mechanism updated the SecurityContextHolder, an anonymous Authentication object will be put there

9. ExceptionTranslationFilter, to catch any Spring Security exceptions so that either an HTTP error response can be returned or an appropriate AuthenticationEntryPoint can be launched

10. FilterSecurityInterceptor, to protect web URIs and raise exceptions when access is denied

Now, I'll try to go on by your questions one by one:

I'm confused how these filters are used. Is it that for the spring provided form-login, UsernamePasswordAuthenticationFilter is only used for /login, and latter filters are not? Does the form-login namespace element auto-configure these filters? Does every request (authenticated or not) reach FilterSecurityInterceptor for non-login url?

Once you are configuring a <security-http> section, for each one you must at least provide one authentication mechanism. This must be one of the filters which match group 4 in the 13.3 Filter Ordering section from the Spring Security documentation I've just referenced.

This is the minimum valid security:http element which can be configured:

<security:http authentication-manager-ref="mainAuthenticationManager" 
               entry-point-ref="serviceAccessDeniedHandler">
    <security:intercept-url pattern="/sectest/zone1/**" access="hasRole('ROLE_ADMIN')"/>
</security:http>

Just doing it, these filters are configured in the filter chain proxy:

{
        "1": "org.springframework.security.web.context.SecurityContextPersistenceFilter",
        "2": "org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter",
        "3": "org.springframework.security.web.header.HeaderWriterFilter",
        "4": "org.springframework.security.web.csrf.CsrfFilter",
        "5": "org.springframework.security.web.savedrequest.RequestCacheAwareFilter",
        "6": "org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter",
        "7": "org.springframework.security.web.authentication.AnonymousAuthenticationFilter",
        "8": "org.springframework.security.web.session.SessionManagementFilter",
        "9": "org.springframework.security.web.access.ExceptionTranslationFilter",
        "10": "org.springframework.security.web.access.intercept.FilterSecurityInterceptor"
    }

Note: I get them by creating a simple RestController which @Autowires the FilterChainProxy and returns it's contents:

    @Autowired
    private FilterChainProxy filterChainProxy;

    @Override
    @RequestMapping("/filterChain")
    public @ResponseBody Map<Integer, Map<Integer, String>> getSecurityFilterChainProxy(){
        return this.getSecurityFilterChainProxy();
    }

    public Map<Integer, Map<Integer, String>> getSecurityFilterChainProxy(){
        Map<Integer, Map<Integer, String>> filterChains= new HashMap<Integer, Map<Integer, String>>();
        int i = 1;
        for(SecurityFilterChain secfc :  this.filterChainProxy.getFilterChains()){
            //filters.put(i++, secfc.getClass().getName());
            Map<Integer, String> filters = new HashMap<Integer, String>();
            int j = 1;
            for(Filter filter : secfc.getFilters()){
                filters.put(j++, filter.getClass().getName());
            }
            filterChains.put(i++, filters);
        }
        return filterChains;
    }

Here we could see that just by declaring the <security:http> element with one minimum configuration, all the default filters are included, but none of them is of a Authentication type (4th group in 13.3 Filter Ordering section). So it actually means that just by declaring the security:http element, the SecurityContextPersistenceFilter, the ExceptionTranslationFilter and the FilterSecurityInterceptor are auto-configured.

In fact, one authentication processing mechanism should be configured, and even security namespace beans processing claims for that, throwing an error during startup, but it can be bypassed adding an entry-point-ref attribute in <http:security>

If I add a basic <form-login> to the configuration, this way:

<security:http authentication-manager-ref="mainAuthenticationManager">
    <security:intercept-url pattern="/sectest/zone1/**" access="hasRole('ROLE_ADMIN')"/>
    <security:form-login />
</security:http>

Now, the filterChain will be like this:

{
        "1": "org.springframework.security.web.context.SecurityContextPersistenceFilter",
        "2": "org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter",
        "3": "org.springframework.security.web.header.HeaderWriterFilter",
        "4": "org.springframework.security.web.csrf.CsrfFilter",
        "5": "org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter",
        "6": "org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter",
        "7": "org.springframework.security.web.savedrequest.RequestCacheAwareFilter",
        "8": "org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter",
        "9": "org.springframework.security.web.authentication.AnonymousAuthenticationFilter",
        "10": "org.springframework.security.web.session.SessionManagementFilter",
        "11": "org.springframework.security.web.access.ExceptionTranslationFilter",
        "12": "org.springframework.security.web.access.intercept.FilterSecurityInterceptor"
    }

Now, this two filters org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter and org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter are created and configured in the FilterChainProxy.

So, now, the questions:

Is it that for the spring provided form-login, UsernamePasswordAuthenticationFilter is only used for /login, and latter filters are not?

Yes, it is used to try to complete a login processing mechanism in case the request matches the UsernamePasswordAuthenticationFilter url. This url can be configured or even changed it's behaviour to match every request.

You could too have more than one Authentication processing mechanisms configured in the same FilterchainProxy (such as HttpBasic, CAS, etc).

Does the form-login namespace element auto-configure these filters?

No, the form-login element configures the UsernamePasswordAUthenticationFilter, and in case you don't provide a login-page url, it also configures the org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter, which ends in a simple autogenerated login page.

The other filters are auto-configured by default just by creating a <security:http> element with no security:"none" attribute.

Does every request (authenticated or not) reach FilterSecurityInterceptor for non-login url?

Every request should reach it, as it is the element which takes care of whether the request has the rights to reach the requested url. But some of the filters processed before might stop the filter chain processing just not calling FilterChain.doFilter(request, response);. For example, a CSRF filter might stop the filter chain processing if the request has not the csrf parameter.

What if I want to secure my REST API with JWT-token, which is retrieved from login? I must configure two namespace configuration http tags, rights? Other one for /login with UsernamePasswordAuthenticationFilter, and another one for REST url's, with custom JwtAuthenticationFilter.

No, you are not forced to do this way. You could declare both UsernamePasswordAuthenticationFilter and the JwtAuthenticationFilter in the same http element, but it depends on the concrete behaviour of each of this filters. Both approaches are possible, and which one to choose finnally depends on own preferences.

Does configuring two http elements create two springSecurityFitlerChains?

Yes, that's true

Is UsernamePasswordAuthenticationFilter turned off by default, until I declare form-login?

Yes, you could see it in the filters raised in each one of the configs I posted

How do I replace SecurityContextPersistenceFilter with one, which will obtain Authentication from existing JWT-token rather than JSESSIONID?

You could avoid SecurityContextPersistenceFilter, just configuring session strategy in <http:element>. Just configure like this:

<security:http create-session="stateless" >

Or, In this case you could overwrite it with another filter, this way inside the <security:http> element:

<security:http ...>  
   <security:custom-filter ref="myCustomFilter" position="SECURITY_CONTEXT_FILTER"/>    
</security:http>
<beans:bean id="myCustomFilter" class="com.xyz.myFilter" />

EDIT:

One question about "You could too have more than one Authentication processing mechanisms configured in the same FilterchainProxy". Will the latter overwrite the authentication performed by first one, if declaring multiple (Spring implementation) authentication filters? How this relates to having multiple authentication providers?

This finally depends on the implementation of each filter itself, but it's true the fact that the latter authentication filters at least are able to overwrite any prior authentication eventually made by preceding filters.

But this won't necesarily happen. I have some production cases in secured REST services where I use a kind of authorization token which can be provided both as a Http header or inside the request body. So I configure two filters which recover that token, in one case from the Http Header and the other from the request body of the own rest request. It's true the fact that if one http request provides that authentication token both as Http header and inside the request body, both filters will try to execute the authentication mechanism delegating it to the manager, but it could be easily avoided simply checking if the request is already authenticated just at the begining of the doFilter() method of each filter.

Having more than one authentication filter is related to having more than one authentication providers, but don't force it. In the case I exposed before, I have two authentication filter but I only have one authentication provider, as both of the filters create the same type of Authentication object so in both cases the authentication manager delegates it to the same provider.

And opposite to this, I too have a scenario where I publish just one UsernamePasswordAuthenticationFilter but the user credentials both can be contained in DB or LDAP, so I have two UsernamePasswordAuthenticationToken supporting providers, and the AuthenticationManager delegates any authentication attempt from the filter to the providers secuentially to validate the credentials.

So, I think it's clear that neither the amount of authentication filters determine the amount of authentication providers nor the amount of provider determine the amount of filters.

Also, documentation states SecurityContextPersistenceFilter is responsible of cleaning the SecurityContext, which is important due thread pooling. If I omit it or provide custom implementation, I have to implement the cleaning manually, right? Are there more similar gotcha's when customizing the chain?

I did not look carefully into this filter before, but after your last question I've been checking it's implementation, and as usually in Spring, nearly everything could be configured, extended or overwrited.

The SecurityContextPersistenceFilter delegates in a SecurityContextRepository implementation the search for the SecurityContext. By default, a HttpSessionSecurityContextRepository is used, but this could be changed using one of the constructors of the filter. So it may be better to write an SecurityContextRepository which fits your needs and just configure it in the SecurityContextPersistenceFilter, trusting in it's proved behaviour rather than start making all from scratch.

• To remove white spaces:

1) To remove white space everywhere:

df.columns = df.columns.str.replace(' ', '')

2) To remove white space at the beginning of string:

df.columns = df.columns.str.lstrip()

3) To remove white space at the end of string:

df.columns = df.columns.str.rstrip()

4) To remove white space at both ends:

df.columns = df.columns.str.strip()

• To replace white spaces with other characters (underscore for instance):

5) To replace white space everywhere

df.columns = df.columns.str.replace(' ', '_')

6) To replace white space at the beginning:

df.columns = df.columns.str.replace('^ +', '_')

7) To replace white space at the end:

df.columns = df.columns.str.replace(' +$', '_')

8) To replace white space at both ends:

df.columns = df.columns.str.replace('^ +| +$', '_')

All above applies to a specific column as well, assume you have a column named col, then just do:

df[col] = df[col].str.strip()  # or .replace as above

1. First activate your conda environment (the one u want to export/backup)

conda activate myEnv

2. Export all packages to a file (myEnvBkp.txt)

conda list --explicit > myEnvBkp.txt

3. Restore/import the environment:

conda create --name myEnvRestored --file myEnvBkp.txt

This error can also occur if your interface name is different than the file it is contained in. Read about ES6 modules for details. If the SignInComponent was an interface, as was in my case, then

SignInComponent

should be in a file named SignInComponent.ts.

If you are using visual studio code:

1. Open terminal
2. Run the command: Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy Unrestricted
3. Then run the command protractor conf.js

This is related to protractor test script execution related and I faced the same issue and it was resolved like this.

python -m pip install Pillow

Will use pip of current Python activated with

source activate shrink_venv

Execute:

ng v

or

ng --version

tell you the current angular cli version number

In docker-compose.yml you can use this format:

volumes:
    - host directory:container directory

according to their documentation

for (const field in this.formErrors) {
  if (this.formErrors.hasOwnProperty(field)) {

for (const key in control.errors) {
  if (control.errors.hasOwnProperty(key)) {

This should solve it:

1. Open the Visual Studio Installer.
   
2. Click on the Modify Button.
   
3. Choose the Language Pack tab on top left.
   
4. Check the language you need and click on the Modify Button at bottom right.

To be on the safe side use

os.getenv('FOO') or 'bar'

A corner case with the above answers is when the environment variable is set but is empty

For this special case you get

print(os.getenv('FOO', 'bar'))
# prints new line - though you expected `bar`

or

if "FOO" in os.environ:
    print("FOO is here")
# prints FOO is here - however its not

To avoid this just use or

os.getenv('FOO') or 'bar'

Then you get

print(os.getenv('FOO') or 'bar')
# bar

When do we have empty environment variables?

You forgot to set the value in the .env file

# .env
FOO=

or exported as

$ export FOO=

or forgot to set it in settings.py

# settings.py
os.environ['FOO'] = ''

Update: if in doubt, check out these one-liners

>>> import os; os.environ['FOO'] = ''; print(os.getenv('FOO', 'bar'))

$ FOO= python -c "import os; print(os.getenv('FOO', 'bar'))"

If you want to force Keras to use CPU

Way 1

import os
os.environ["CUDA_DEVICE_ORDER"] = "PCI_BUS_ID"   # see issue #152
os.environ["CUDA_VISIBLE_DEVICES"] = ""

before Keras / Tensorflow is imported.

Way 2

Run your script as

$ CUDA_VISIBLE_DEVICES="" ./your_keras_code.py

See also

1. https://github.com/keras-team/keras/issues/152
2. https://github.com/fchollet/keras/issues/4613

As stated in the answer by Henrik, titles are left-aligned by default starting with ggplot 2.2.0. Titles can be centered by adding this to the plot:

theme(plot.title = element_text(hjust = 0.5))

However, if you create many plots, it may be tedious to add this line everywhere. One could then also change the default behaviour of ggplot with

theme_update(plot.title = element_text(hjust = 0.5))

Once you have run this line, all plots created afterwards will use the theme setting plot.title = element_text(hjust = 0.5) as their default:

theme_update(plot.title = element_text(hjust = 0.5))
ggplot() + ggtitle("Default is now set to centered")

To get back to the original ggplot2 default settings you can either restart the R session or choose the default theme with

theme_set(theme_gray())

My problem was because I added a second parameter:

AngularFireModule.initializeApp(firebaseConfig, 'reservas')

if I remove the second parameter it works fine:

AngularFireModule.initializeApp(firebaseConfig)

For me this issue resolved by singing in Docker Desktop.

be sure, that if the declarations for the pipe are done in one module, while you are using the pipe inside another module, you should provide correct imports/declarations at the current module under which is the class where you are using the pipe. In my case that was the reason for the pipe miss

package main

import "encoding/json"

func main() {
    in := []byte(`{ "votes": { "option_A": "3" } }`)
    var raw map[string]interface{}
    if err := json.Unmarshal(in, &raw); err != nil {
        panic(err)
    }
    raw["count"] = 1
    out, err := json.Marshal(raw)
    if err != nil {
        panic(err)
    }
    println(string(out))
}

https://play.golang.org/p/o8ZwvgsQmoO

1. You don't need:

   @Configuration
   @ComponentScan("com.company.praktikant")
   

   @EnableWebSecurity already has @Configuration in it, and I cannot imagine why you put @ComponentScan there.

2. About CORS filter, I would just put this:

   @Bean
   public FilterRegistrationBean corsFilter() {
       UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
       CorsConfiguration config = new CorsConfiguration();
       config.setAllowCredentials(true);
       config.addAllowedOrigin("*");
       config.addAllowedHeader("*");
       config.addAllowedMethod("*");
       source.registerCorsConfiguration("/**", config);
       FilterRegistrationBean bean = new FilterRegistrationBean(new CorsFilter(source));
       bean.setOrder(0); 
       return bean;
   }
   

   Into SecurityConfiguration class and remove configure and configure global methods. You don't need to set allowde orgins, headers and methods twice. Especially if you put different properties in filter and spring security config :)

3. According to above, your "MyFilter" class is redundant.

4. You can also remove those:

   final AnnotationConfigApplicationContext annotationConfigApplicationContext = new AnnotationConfigApplicationContext();
   annotationConfigApplicationContext.register(CORSConfig.class);
   annotationConfigApplicationContext.refresh();
   

   From Application class.

5. At the end small advice - not connected to the question. You don't want to put verbs in URI. Instead of http://localhost:8080/getKunden you should use HTTP GET method on http://localhost:8080/kunden resource. You can learn about best practices for design RESTful api here: http://www.vinaysahni.com/best-practices-for-a-pragmatic-restful-api

C++ programs are translated to assembly programs during the generation of machine code from the source code. It would be virtually wrong to say assembly is slower than C++. Moreover, the binary code generated differs from compiler to compiler. So a smart C++ compiler may produce binary code more optimal and efficient than a dumb assembler's code.

However I believe your profiling methodology has certain flaws. The following are general guidelines for profiling:

1. Make sure your system is in its normal/idle state. Stop all running processes (applications) that you started or that use CPU intensively (or poll over the network).
2. Your datasize must be greater in size.
3. Your test must run for something more than 5-10 seconds.
4. Do not rely on just one sample. Perform your test N times. Collect results and calculate the mean or median of the result.

This worked for me:

 @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss.SSSZ", shape = JsonFormat.Shape.STRING)
 private LocalDateTime startDate;

You installed PHP IntelliSense extension, and this error because of it.
So if you want to fix this problem go to this menu:
File -> Preferences -> Settings
Now you can see 2 window. In the right window add below codes:

{
    "php.validate.executablePath": "C:\\wamp64\\bin\\php\\php7.0.4\\php.exe",
    "php.executablePath": "C:\\wamp64\\bin\\php\\php7.0.4\\php.exe"
}

Just like below image.



NOTICE: This address C:\\wamp64\\bin\\php\\php7.0.4\\php.exe is my php7.exe file address. Replace this address with own php7.exe.

Although @CommonsWare's solution works, it can't be used e. g. in a layer-list drawable. The options combining <rotate> and <shape> cause the problems with size. Here is a solution using the Android Vector Drawable. This Drawable is a 1x10dp white line (can be adjusted by modifying the width, height and strokeColor properties):

<?xml version="1.0" encoding="utf-8"?>
<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:viewportWidth="1"
    android:viewportHeight="10"
    android:width="1dp"
    android:height="10dp">

    <path
        android:strokeColor="#FFFFFF"
        android:strokeWidth="1"
        android:pathData="M0.5,0 V10" />

</vector> 

The Simple 1:1 Scenario

For situations where the canvas element is 1:1 compared to the bitmap size, you can get the mouse positions by using this snippet:

function getMousePos(canvas, evt) {
    var rect = canvas.getBoundingClientRect();
    return {
      x: evt.clientX - rect.left,
      y: evt.clientY - rect.top
    };
}

Just call it from your event with the event and canvas as arguments. It returns an object with x and y for the mouse positions.

As the mouse position you are getting is relative to the client window you'll have to subtract the position of the canvas element to convert it relative to the element itself.

Example of integration in your code:

//put this outside the event loop..
var canvas = document.getElementById("imgCanvas");
var context = canvas.getContext("2d");

function draw(evt) {
    var pos = getMousePos(canvas, evt);

    context.fillStyle = "#000000";
    context.fillRect (pos.x, pos.y, 4, 4);
}

Note: borders and padding will affect position if applied directly to the canvas element so these needs to be considered via getComputedStyle() - or apply those styles to a parent div instead.

When Element and Bitmap are of different sizes

When there is the situation of having the element at a different size than the bitmap itself, for example, the element is scaled using CSS or there is pixel-aspect ratio etc. you will have to address this.

Example:

function  getMousePos(canvas, evt) {
  var rect = canvas.getBoundingClientRect(), // abs. size of element
      scaleX = canvas.width / rect.width,    // relationship bitmap vs. element for X
      scaleY = canvas.height / rect.height;  // relationship bitmap vs. element for Y

  return {
    x: (evt.clientX - rect.left) * scaleX,   // scale mouse coordinates after they have
    y: (evt.clientY - rect.top) * scaleY     // been adjusted to be relative to element
  }
}

With transformations applied to context (scale, rotation etc.)

Then there is the more complicated case where you have applied transformation to the context such as rotation, skew/shear, scale, translate etc. To deal with this you can calculate the inverse matrix of the current matrix.

Newer browsers let you read the current matrix via the currentTransform property and Firefox (current alpha) even provide a inverted matrix through the mozCurrentTransformInverted. Firefox however, via mozCurrentTransform, will return an Array and not DOMMatrix as it should. Neither Chrome, when enabled via experimental flags, will return a DOMMatrix but a SVGMatrix.

In most cases however you will have to implement a custom matrix solution of your own (such as my own solution here - free/MIT project) until this get full support.

When you eventually have obtained the matrix regardless of path you take to obtain one, you'll need to invert it and apply it to your mouse coordinates. The coordinates are then passed to the canvas which will use its matrix to convert it to back wherever it is at the moment.

This way the point will be in the correct position relative to the mouse. Also here you need to adjust the coordinates (before applying the inverse matrix to them) to be relative to the element.

An example just showing the matrix steps

function draw(evt) {
    var pos = getMousePos(canvas, evt);        // get adjusted coordinates as above
    var imatrix = matrix.inverse();            // get inverted matrix somehow
    pos = imatrix.applyToPoint(pos.x, pos.y);  // apply to adjusted coordinate

    context.fillStyle = "#000000";
    context.fillRect(pos.x-1, pos.y-1, 2, 2);
}

An example of using currentTransform when implemented would be:

    var pos = getMousePos(canvas, e);          // get adjusted coordinates as above
    var matrix = ctx.currentTransform;         // W3C (future)
    var imatrix = matrix.invertSelf();         // invert

    // apply to point:
    var x = pos.x * imatrix.a + pos.y * imatrix.c + imatrix.e;
    var y = pos.x * imatrix.b + pos.y * imatrix.d + imatrix.f;

Update I made a free solution (MIT) to embed all these steps into a single easy-to-use object that can be found here and also takes care of a few other nitty-gritty things most ignore.

In my case my object also had property which was array of files. Since they are binary they should be dealt differently - index doesn't need to be part of the key. So i modified @Vladimir Novopashin's and @developer033's answer:

export function convertToFormData(data, formData, parentKey) {
  if(data === null || data === undefined) return null;

  formData = formData || new FormData();

  if (typeof data === 'object' && !(data instanceof Date) && !(data instanceof File)) {
    Object.keys(data).forEach(key => 
      convertToFormData(data[key], formData, (!parentKey ? key : (data[key] instanceof File ? parentKey : `${parentKey}[${key}]`)))
    );
  } else {
    formData.append(parentKey, data);
  }

  return formData;
}

It's also important to realize that simply moving the program break pointer around with brk and sbrk doesn't actually allocate the memory, it just sets up the address space. On Linux, for example, the memory will be "backed" by actual physical pages when that address range is accessed, which will result in a page fault, and will eventually lead to the kernel calling into the page allocator to get a backing page.

You can not ask for instance during configuration phase - you can ask only for providers.

var app = angular.module('modx', []);

// configure stuff
app.config(function($routeProvider, $locationProvider) {
  // you can inject any provider here
});

// run blocks
app.run(function($rootScope) {
  // you can inject any instance here
});

See http://docs.angularjs.org/guide/module for more info.

So let's fully understand, Let's say you have a query which works in localhost but does not in production mode, This is because in MySQL 5.7 and above they decided to activate the sql_mode=only_full_group_by by default, basically it is a strict mode which prevents you to select non aggregated fields.

Here's the query (works in local but not in production mode) :

SELECT post.*, YEAR(created_at) as year
FROM post
GROUP BY year

SELECT post.id, YEAR(created_at) as year  // This will generate an error since there are many ids
FROM post
GROUP BY year

To verify if the sql_mode=only_full_group_by is activated for, you should execute the following query :

SELECT @@sql_mode;   //localhost

Output : IGNORE_SPACE, STRICT_TRANS, ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION (If you don't see it, it means it is deactivated)

But if try in production mode, or somewhere where it gives you the error it should be activated:

SELECT @@sql_mode;   //production

Output: ONLY_FULL_GROUP_BY, STRICT_TRANS_TABLES, NO_ZERO_IN_DATE, NO_ZERO... And it's ONLY_FULL_GROUP_BY we're looking for here.

Otherwise, if you are using phpMyAdmin then go to -> Variables and search for sql_mode

Let's take our previous example and adapt it to it :

SELECT MIN(post.id), YEAR(created_at) as year  //Here we are solving the problem with MIN()
FROM post
GROUP BY year

And the same for MAX()

And if we want all the IDs, we're going to need:

SELECT GROUP_CONCAT(post.id SEPARATOR ','), YEAR(created_at) as year
FROM post
GROUP BY year

or another newly added function:

SELECT ANY_VALUE(post.id), YEAR(created_at) as year 
FROM post
GROUP BY year

?? ANY_VALUE does not exist for MariaDB

And If you want all the fields, then you could use the same:

SELECT ANY_VALUE(post.id), ANY_VALUE(post.slug), ANY_VALUE(post.content) YEAR(created_at) as year 
FROM post
GROUP BY year

? To deactivate the sql_mode=only_full_group_by then you'll need to execute this query:

SET GLOBAL sql_mode=(SELECT REPLACE(@@sql_mode, 'ONLY_FULL_GROUP_BY', ''));

Sorry for the novel, hope it helps.

Use repr:

a = "Hello\tWorld\nHello World"
print(repr(a))
# 'Hello\tWorld\nHello World'

Note you do not get \s for a space. I hope that was a typo...?

But if you really do want \s for spaces, you could do this:

print(repr(a).replace(' ',r'\s'))

Some definitions

• A shade is produced by "darkening" a hue or "adding black"
• A tint is produced by "ligthening" a hue or "adding white"

Creating a tint or a shade

Depending on your Color Model, there are different methods to create a darker (shaded) or lighter (tinted) color:

• RGB:

  • To shade:

    newR = currentR * (1 - shade_factor)
    newG = currentG * (1 - shade_factor)
    newB = currentB * (1 - shade_factor)
    

  • To tint:

    newR = currentR + (255 - currentR) * tint_factor
    newG = currentG + (255 - currentG) * tint_factor
    newB = currentB + (255 - currentB) * tint_factor
    

  • More generally, the color resulting in layering a color RGB(currentR,currentG,currentB) with a color RGBA(aR,aG,aB,alpha) is:

    newR = currentR + (aR - currentR) * alpha
    newG = currentG + (aG - currentG) * alpha
    newB = currentB + (aB - currentB) * alpha
    

  where (aR,aG,aB) = black = (0,0,0) for shading, and (aR,aG,aB) = white = (255,255,255) for tinting

• HSV or HSB:

  • To shade: lower the Value / Brightness or increase the Saturation
  • To tint: lower the Saturation or increase the Value / Brightness
• HSL:
  • To shade: lower the Lightness
  • To tint: increase the Lightness

There exists formulas to convert from one color model to another. As per your initial question, if you are in RGB and want to use the HSV model to shade for example, you can just convert to HSV, do the shading and convert back to RGB. Formula to convert are not trivial but can be found on the internet. Depending on your language, it might also be available as a core function :

• RGB to HSV color in javascript?
• Convert RGB value to HSV

Comparing the models

• RGB has the advantage of being really simple to implement, but:
  • you can only shade or tint your color relatively
  • you have no idea if your color is already tinted or shaded
• HSV or HSB is kind of complex because you need to play with two parameters to get what you want (Saturation & Value / Brightness)
• HSL is the best from my point of view:
  • supported by CSS3 (for webapp)
  • simple and accurate:
    • 50% means an unaltered Hue
    • >50% means the Hue is lighter (tint)
    • <50% means the Hue is darker (shade)
  • given a color you can determine if it is already tinted or shaded
  • you can tint or shade a color relatively or absolutely (by just replacing the Lightness part)

• If you want to learn more about this subject: Wiki: Colors Model
• For more information on what those models are: Wikipedia: HSL and HSV

You could use sparse(a), which would return

(1,2) 1

(1,4) 3

This allows you to keep the information about where your non-zero entries used to be.

I had another requirement like only few stash have to be removed, below code would be helpful in that case.

#!/bin/sh
for i in `seq 5 8`
do
   git stash drop stash@{$i}
done

/* will delete from 5 to 8 index*/

If your intent is to copy the found files into /home/shantanu/tosend, you have the order of the arguments to cp reversed:

find /home/shantanu/processed/ -name '*2011*.xml' -exec cp "{}" /home/shantanu/tosend  \;

Please, note: the find command use {} as placeholder for matched file.

Copy servlet-api.jar from your tomcat server lib folder.

Paste it to WEB-INF > lib folder

Error was solved!!!

The idea I generally use when working with transactions looks like this (semi-pseudo-code):

try {
    // First of all, let's begin a transaction
    $db->beginTransaction();
    
    // A set of queries; if one fails, an exception should be thrown
    $db->query('first query');
    $db->query('second query');
    $db->query('third query');
    
    // If we arrive here, it means that no exception was thrown
    // i.e. no query has failed, and we can commit the transaction
    $db->commit();
} catch (\Throwable $e) {
    // An exception has been thrown
    // We must rollback the transaction
    $db->rollback();
    throw $e; // but the error must be handled anyway
}

• PDO can do that, depending on how you configure it
  • See PDO::setAttribute
  • and PDO::ATTR_ERRMODE and PDO::ERRMODE_EXCEPTION
• else, with some other API, you might have to test the result of the function used to execute a query, and throw an exception yourself.

For example, quite often you'll have a couple of queries before the transaction (before the begin) and another couple of queries after the transaction (after either commit or rollback) and you'll want those queries executed no matter what happened (or not) in the transaction.

Here's a helper function I use quite often:

import os

def listdir_fullpath(d):
    return [os.path.join(d, f) for f in os.listdir(d)]

Either I'm doing it wrongly, or the accepted answer does not work anymore with the current git.

I have actually found the proper solution and posted it under almost the same question here. For more details head there.

Solution:

# Ignore everything inside Resources/ directory
/Resources/**
# Except for subdirectories(won't be committed anyway if there is no committed file inside)
!/Resources/**/
# And except for *.foo files
!*.foo

For a human readable timestamp from a UNIX timestamp, I have used this in scripts before:

import os, datetime

datetime.datetime.fromtimestamp(float(os.path.getmtime("FILE"))).strftime("%B %d, %Y")

Output:

'December 26, 2012'

You could use the islice from itertools to create an iterator over a smaller portion of the list. Then you can append entries to the list without impacting the items you're iterating over:

islice(myarr, 0, len(myarr)-1)

Even better, you don't even have to iterate over all the elements. You can increment a step size.

If the cookie is generated from script, then you can send the cookie manually along with the cookie from the file(using cookie-file option). For example:

# sending manually set cookie
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Cookie: test=cookie"));

# sending cookies from file
curl_setopt($ch, CURLOPT_COOKIEFILE, $ckfile);

In this case curl will send your defined cookie along with the cookies from the file.

If the cookie is generated through javascrript, then you have to trace it out how its generated and then you can send it using the above method(through http-header).

The utma utmc, utmz are seen when cookies are sent from Mozilla. You shouldn't bet worry about these things anymore.

Finally, the way you are doing is alright. Just make sure you are using absolute path for the file names(i.e. /var/dir/cookie.txt) instead of relative one.

Always enable the verbose mode when working with curl. It will help you a lot on tracing the requests. Also it will save lot of your times.

curl_setopt($ch, CURLOPT_VERBOSE, true);

I believe that was already answered here.

String versionName = getPackageManager().getPackageInfo(getPackageName(), 0).versionName;

OR

int versionCode = getPackageManager().getPackageInfo(getPackageName(), 0).versionCode;

After looking around on Google for a long time, trying out several solutions, both CSS, JavaScript and JQuery, i found that most of them were using an Image as the button. Some of them were hard to use, but i did manage to piece together something that ended out working out for me.

The important parts for me was:

• The Browse button had to be a Button (not an image).
• The button had to have a hover effect (to make it look nice).
• The Width of both the Text and the button had to be easy to adjust.
• The solution had to work in IE8, FF, Chrome and Safari.

This is the solution i came up with. And hope it can be of use to others as well.

Change the width of .file_input_textbox to change the width of the textbox.

Change the width of both .file_input_div, .file_input_button and .file_input_button_hover to change the width of the button. You might need to tweak a bit on the positions also. I never figured out why...

To test this solution, make a new html file and paste the content into it.

<html>
<head>

<style type="text/css">

.file_input_textbox {height:25px;width:200px;float:left; }
.file_input_div     {position: relative;width:80px;height:26px;overflow: hidden; }
.file_input_button  {width: 80px;position:absolute;top:0px;
                     border:1px solid #F0F0EE;padding:2px 8px 2px 8px; font-weight:bold; height:25px; margin:0px; margin-right:5px; }
.file_input_button_hover{width:80px;position:absolute;top:0px;
                     border:1px solid #0A246A; background-color:#B2BBD0;padding:2px 8px 2px 8px; height:25px; margin:0px; font-weight:bold; margin-right:5px; }
.file_input_hidden  {font-size:45px;position:absolute;right:0px;top:0px;cursor:pointer;
                     opacity:0;filter:alpha(opacity=0);-ms-filter:"alpha(opacity=0)";-khtml-opacity:0;-moz-opacity:0; }
</style>
</head>
<body>
    <input type="text" id="fileName" class="file_input_textbox" readonly="readonly">
 <div class="file_input_div">
  <input id="fileInputButton" type="button" value="Browse" class="file_input_button" />
  <input type="file" class="file_input_hidden" 
      onchange="javascript: document.getElementById('fileName').value = this.value" 
      onmouseover="document.getElementById('fileInputButton').className='file_input_button_hover';"
      onmouseout="document.getElementById('fileInputButton').className='file_input_button';" />
</div>
</body>
</html>

I suggest to insert an '/' character in front of 'myfilename.cvs'

Response.AddHeader("Content-Disposition", "attachment;filename=/myfilename.csv");

I hope you get better results.

Try this:

UIBezierPath *shadowPath = [UIBezierPath bezierPathWithRect:view.bounds];
view.layer.masksToBounds = NO;
view.layer.shadowColor = [UIColor blackColor].CGColor;
view.layer.shadowOffset = CGSizeMake(0.0f, 5.0f);
view.layer.shadowOpacity = 0.5f;
view.layer.shadowPath = shadowPath.CGPath;

First of all: The UIBezierPath used as shadowPath is crucial. If you don't use it, you might not notice a difference at first, but the keen eye will observe a certain lag occurring during events like rotating the device and/or similar. It's an important performance tweak.

Regarding your issue specifically: The important line is view.layer.masksToBounds = NO. It disables the clipping of the view's layer's sublayers that extend further than the view's bounds.

For those wondering what the difference between masksToBounds (on the layer) and the view's own clipToBounds property is: There isn't really any. Toggling one will have an effect on the other. Just a different level of abstraction.

Swift 2.2:

override func layoutSubviews()
{
    super.layoutSubviews()

    let shadowPath = UIBezierPath(rect: bounds)
    layer.masksToBounds = false
    layer.shadowColor = UIColor.blackColor().CGColor
    layer.shadowOffset = CGSizeMake(0.0, 5.0)
    layer.shadowOpacity = 0.5
    layer.shadowPath = shadowPath.CGPath
}

Swift 3:

override func layoutSubviews()
{
    super.layoutSubviews()

    let shadowPath = UIBezierPath(rect: bounds)
    layer.masksToBounds = false
    layer.shadowColor = UIColor.black.cgColor
    layer.shadowOffset = CGSize(width: 0.0, height: 5.0)
    layer.shadowOpacity = 0.5
    layer.shadowPath = shadowPath.cgPath
}

SELECT create_date
FROM sys.tables
WHERE name='YourTableName'

The updated dplyr solution, as for 2020

1: summarise_each_() is deprecated as of dplyr 0.7.0. and 2: funs() is deprecated as of dplyr 0.8.0.

ag.dplyr <- DF %>% group_by(ID) %>% summarise(across(.cols = everything(),list(mean = mean, sd = sd)))

AX is the 16 lower bits of EAX. AH is the 8 high bits of AX (i.e. the bits 8-15 of EAX) and AL is the least significant byte (bits 0-7) of EAX as well as AX.

Example (Hexadecimal digits):

EAX: 12 34 56 78
AX: 56 78
AH: 56
AL: 78

Just another possibility: Spring initializes bean by type not by name if you don't define bean with a name, which is ok if you use it by its type:

Producer:

@Service
public void FooServiceImpl implements FooService{}

Consumer:

@Autowired
private FooService fooService;

or

@Autowired
private void setFooService(FooService fooService) {}

but not ok if you use it by name:

ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
ctx.getBean("fooService");

It would complain: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'fooService' is defined In this case, assigning name to @Service("fooService") would make it work.

LIFO is the way browser parses CSS properties..If you are using Sass declare a variable called as

"$header-background: red;"

use it instead of directly assigning values like red or blue. When you want to override just reassign the value to

"$header-background:blue"

then

background-color:$header-background;

it should smoothly override. Using "!important" is not always the right choice..Its just a hotfix

Open a new connection when the Node.js application starts, and reuse the existing db connection object:

/server.js

import express from 'express';
import Promise from 'bluebird';
import logger from 'winston';
import { MongoClient } from 'mongodb';
import config from './config';
import usersRestApi from './api/users';

const app = express();

app.use('/api/users', usersRestApi);

app.get('/', (req, res) => {
  res.send('Hello World');
});

// Create a MongoDB connection pool and start the application
// after the database connection is ready
MongoClient.connect(config.database.url, { promiseLibrary: Promise }, (err, db) => {
  if (err) {
    logger.warn(`Failed to connect to the database. ${err.stack}`);
  }
  app.locals.db = db;
  app.listen(config.port, () => {
    logger.info(`Node.js app is listening at http://localhost:${config.port}`);
  });
});

/api/users.js

import { Router } from 'express';
import { ObjectID } from 'mongodb';

const router = new Router();

router.get('/:id', async (req, res, next) => {
  try {
    const db = req.app.locals.db;
    const id = new ObjectID(req.params.id);
    const user = await db.collection('user').findOne({ _id: id }, {
      email: 1,
      firstName: 1,
      lastName: 1
    });

    if (user) {
      user.id = req.params.id;
      res.send(user);
    } else {
      res.sendStatus(404);
    }
  } catch (err) {
    next(err);
  }
});

export default router;

Source: How to Open Database Connections in a Node.js/Express App

For Workbench 6.0

Open MySql workbench. To take database backup you need to create New Server Instance(If not available) within Server Administration.

Steps to Create New Server Instance:

1. Select New Server Instance option within Server Administrator.
2. Provide connection details.

After creating new server instance , it will be available in Server Administration list. Double click on Server instance you have created OR Click on Manage Import/Export option and Select Server Instance.

Now, From DATA EXPORT/RESTORE select DATA EXPORT option,Select Schema and Schema Object for backup.

You can take generate backup file in different way as given below-

Q.1) Backup file(.sql) contains both Create Table statements and Insert into Table Statements

ANS:

1. Select Start Export Option

Q.2) Backup file(.sql) contains only Create Table Statements, not Insert into Table statements for all tables

ANS:

1. Select Skip Table Data(no-data) option

2. Select Start Export Option

Q.3) Backup file(.sql) contains only Insert into Table Statements, not Create Table statements for all tables

ANS:

1. Select Advance Option Tab, Within Tables Panel- select no-create info-Do not write CREATE TABLE statement that re-create each dumped table option.
2. Select Start Export Option

For Workbench 6.3

1. Click on Management tab at left side in Navigator Panel
2. Click on Data Export Option
3. Select Schema
4. Select Tables
5. Select required option from dropdown below the tables list as per your requirement
6. Select Include Create schema checkbox
7. Click on Advance option
8. Select Complete insert checkbox in Inserts Panel
9. Start Export

For Workbench 8.0

1. Go to Server tab
2. Go to Database Export

This opens up something like this

3. Select the schema to export in the Tables to export
4. Click on Export to Self-Contained file
5. Check if Advanced Options... are exactly as you want the export
6. Click the button Start Export

Edit the gradle wrapper settings in gradle/wrapper/gradle-wrapper.properties and change gradle-1.6-bin.zip to gradle-2.4-bin.zip.

./gradle/wrapper/gradle-wrapper.properties :

#Wed Apr 10 15:27:10 PDT 2013
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=http\://services.gradle.org/distributions/gradle-1.8-bin.zip

It should compile without any error now.

Note: update version numbers with the most recent ones

You can use java.util.regex.Pattern with the CASE_INSENSITIVE flag for case insensitive matching:

Pattern.compile(Pattern.quote(strptrn), Pattern.CASE_INSENSITIVE).matcher(str1).find();

To resolve your problem, write the following line on your page's Page_Load method.

if (String.IsNullOrEmpty(Request.QueryString["aspxerrorpath"])) return;

.Net 4.0 provides more closer look to null, empty or whitespace strings, use it as shown in the following line:

if(string.IsNullOrWhiteSpace(Request.QueryString["aspxerrorpath"])) return;

This will not run your next statements (your business logics) if query string does not have aspxerrorpath.

The simplest and shortest way I could find for SQL Server 2012 and above is BINARY BASE64 :

SELECT CAST('string' as varbinary(max)) FOR XML PATH(''), BINARY BASE64

For Base64 to string

SELECT CAST( CAST( 'c3RyaW5n' as XML ).value('.','varbinary(max)') AS varchar(max) )

( or nvarchar(max) for Unicode strings )

As programmers we want the quickest, most fool-proof way to get our tools in order so we can start hacking. Here are how I got it to work in MacOS 10.13.1 (High Sierra):

• Option 1: Go to System Preferences | Keyboard | Shortcut | Services. Under Files and Folders section, enable New Terminal at Folder and/or New Terminal Tab at Folder and assign a shortcut key to it.

• Option 2: If you want the shortcut key to work anywhere, create a new Service using Automator, then go to the Keyboard Shortcut to assign a shortcut key to it. Known limitation: not work from the desktop

Notes:

• If the shortcut doesn't work, it might be in conflict with another key binding (and the OS wouldn't warn you), try something else, e.g. if ??T doesn't work, try ??T.
• Don't spell-correct MacOS, that's not necessary.

...and when I got one how to process it (do I need to use Fourier Transform like it was instructed in the above post)?

If you want a "tap" then I think you are interested in amplitude more than frequency. So Fourier transforms probably aren't useful for your particular goal. You probably want to make a running measurement of the short-term (say 10 ms) amplitude of the input, and detect when it suddenly increases by a certain delta. You would need to tune the parameters of:

• what is the "short-term" amplitude measurement
• what is the delta increase you look for
• how quickly the delta change must occur

Although I said you're not interested in frequency, you might want to do some filtering first, to filter out especially low and high frequency components. That might help you avoid some "false positives". You could do that with an FIR or IIR digital filter; Fourier isn't necessary.

Vectors and matrices can only be of a single type and cbind and rbind on vectors will give matrices. In these cases, the numeric values will be promoted to character values since that type will hold all the values.

(Note that in your rbind example, the promotion happens within the c call:

> c(10, "[]", "[[1,2]]")
[1] "10"      "[]"      "[[1,2]]"

If you want a rectangular structure where the columns can be different types, you want a data.frame. Any of the following should get you what you want:

> x = data.frame(v1=c(10, 20), v2=c("[]", "[]"), v3=c("[[1,2]]","[[1,3]]"))
> x
  v1 v2      v3
1 10 [] [[1,2]]
2 20 [] [[1,3]]
> str(x)
'data.frame':   2 obs. of  3 variables:
 $ v1: num  10 20
 $ v2: Factor w/ 1 level "[]": 1 1
 $ v3: Factor w/ 2 levels "[[1,2]]","[[1,3]]": 1 2

or (using specifically the data.frame version of cbind)

> x = cbind.data.frame(c(10, 20), c("[]", "[]"), c("[[1,2]]","[[1,3]]"))
> x
  c(10, 20) c("[]", "[]") c("[[1,2]]", "[[1,3]]")
1        10            []                 [[1,2]]
2        20            []                 [[1,3]]
> str(x)
'data.frame':   2 obs. of  3 variables:
 $ c(10, 20)              : num  10 20
 $ c("[]", "[]")          : Factor w/ 1 level "[]": 1 1
 $ c("[[1,2]]", "[[1,3]]"): Factor w/ 2 levels "[[1,2]]","[[1,3]]": 1 2

or (using cbind, but making the first a data.frame so that it combines as data.frames do):

> x = cbind(data.frame(c(10, 20)), c("[]", "[]"), c("[[1,2]]","[[1,3]]"))
> x
  c.10..20. c("[]", "[]") c("[[1,2]]", "[[1,3]]")
1        10            []                 [[1,2]]
2        20            []                 [[1,3]]
> str(x)
'data.frame':   2 obs. of  3 variables:
 $ c.10..20.              : num  10 20
 $ c("[]", "[]")          : Factor w/ 1 level "[]": 1 1
 $ c("[[1,2]]", "[[1,3]]"): Factor w/ 2 levels "[[1,2]]","[[1,3]]": 1 2

The call to InitializeComponent() (which is usually called in the default constructor of at least Window and UserControl) is actually a method call to the partial class of the control (rather than a call up the object hierarchy as I first expected).

This method locates a URI to the XAML for the Window/UserControl that is loading, and passes it to the System.Windows.Application.LoadComponent() static method. LoadComponent() loads the XAML file that is located at the passed in URI, and converts it to an instance of the object that is specified by the root element of the XAML file.

In more detail, LoadComponent creates an instance of the XamlParser, and builds a tree of the XAML. Each node is parsed by the XamlParser.ProcessXamlNode(). This gets passed to the BamlRecordWriter class. Some time after this I get a bit lost in how the BAML is converted to objects, but this may be enough to help you on the path to enlightenment.

Note: Interestingly, the InitializeComponent is a method on the System.Windows.Markup.IComponentConnector interface, of which Window/UserControl implement in the partial generated class.

Hope this helps!

If you are using the Eclipse ADT plugin for your development, open AndroidManifest.xml in the Android Manifest Editor (should be the default action for opening AndroidManifest.xml from the project files list).

Afterwards, select the Permissions tab along the bottom of the editor (Manifest - Application - Permissions - Instrumentation - AndroidManifest.xml), then click Add... a Uses Permission and select the desired permission from the dropdown on the right, or just copy-paste in the necessary one (such as the android.permission.INTERNET permission you required).

Other way to combine features and target variables can be using np.column_stack (details)

import numpy as np
import pandas as pd
from sklearn.datasets import load_iris

data = load_iris()
df = pd.DataFrame(np.column_stack((data.data, data.target)), columns = data.feature_names+['target'])
print(df.head())

Result:

   sepal length (cm)  sepal width (cm)  petal length (cm)  petal width (cm)     target
0                5.1               3.5                1.4               0.2     0.0
1                4.9               3.0                1.4               0.2     0.0 
2                4.7               3.2                1.3               0.2     0.0 
3                4.6               3.1                1.5               0.2     0.0
4                5.0               3.6                1.4               0.2     0.0

If you need the string label for the target, then you can use replace by convertingtarget_names to dictionary and add a new column:

df['label'] = df.target.replace(dict(enumerate(data.target_names)))
print(df.head())

Result:

   sepal length (cm)  sepal width (cm)  petal length (cm)  petal width (cm)     target  label 
0                5.1               3.5                1.4               0.2     0.0     setosa
1                4.9               3.0                1.4               0.2     0.0     setosa
2                4.7               3.2                1.3               0.2     0.0     setosa
3                4.6               3.1                1.5               0.2     0.0     setosa
4                5.0               3.6                1.4               0.2     0.0     setosa

Data for last month-

select count(distinct switch_id)
  from [email protected]
 where dealer_name =  'XXXX'
   and to_char(CREATION_DATE,'MMYYYY') = to_char(add_months(trunc(sysdate),-1),'MMYYYY');

You have to call close() on the GZIPOutputStream before you attempt to read it. The final bytes of the file will only be written when the file is actually closed. (This is irrespective of any explicit buffering in the output stack. The stream only knows to compress and write the last bytes when you tell it to close. A flush() probably won't help ... though calling finish() instead of close() should work. Look at the javadocs.)

Here's the correct code (in Java);

package test;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;

public class GZipTest {

    public static void main(String[] args) throws
                FileNotFoundException, IOException {
        String name = "/tmp/test";
        GZIPOutputStream gz = new GZIPOutputStream(new FileOutputStream(name));
        gz.write(10);
        gz.close();       // Remove this to reproduce the reported bug
        System.out.println(new GZIPInputStream(new FileInputStream(name)).read());
    }
}

(I've not implemented resource management or exception handling / reporting properly as they are not relevant to the purpose of this code. Don't treat this as an example of "good code".)

If you want to do this with XML not programmatically you can use on your TextView:

android:autoLink="web"
android:linksClickable="true"

Tim Stone's solution is on the right track, but his initial rewriterule and and his cookie name in the final condition are different, and you can not write and read a cookie in the same request.

Here is the finalized working code:

RewriteEngine on
RewriteBase /
# Check if this is the noredirect query string
RewriteCond %{QUERY_STRING} (^|&)m=0(&|$)
# Set a cookie, and skip the next rule
RewriteRule ^ - [CO=mredir:0:www.website.com]

# Check if this looks like a mobile device
# (You could add another [OR] to the second one and add in what you
#  had to check, but I believe most mobile devices should send at
#  least one of these headers)
RewriteCond %{HTTP:x-wap-profile} !^$ [OR]
RewriteCond %{HTTP:Profile}       !^$ [OR]
RewriteCond %{HTTP_USER_AGENT} "acs|alav|alca|amoi|audi|aste|avan|benq|bird|blac|blaz|brew|cell|cldc|cmd-" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "dang|doco|eric|hipt|inno|ipaq|java|jigs|kddi|keji|leno|lg-c|lg-d|lg-g|lge-" [NC,OR]
RewriteCond %{HTTP_USER_AGENT}  "maui|maxo|midp|mits|mmef|mobi|mot-|moto|mwbp|nec-|newt|noki|opwv" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "palm|pana|pant|pdxg|phil|play|pluc|port|prox|qtek|qwap|sage|sams|sany" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "sch-|sec-|send|seri|sgh-|shar|sie-|siem|smal|smar|sony|sph-|symb|t-mo" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "teli|tim-|tosh|tsm-|upg1|upsi|vk-v|voda|w3cs|wap-|wapa|wapi" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "wapp|wapr|webc|winw|winw|xda|xda-" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "up.browser|up.link|windowssce|iemobile|mini|mmp" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "symbian|midp|wap|phone|pocket|mobile|pda|psp" [NC]
RewriteCond %{HTTP_USER_AGENT} !macintosh [NC]

# Check if we're not already on the mobile site
RewriteCond %{HTTP_HOST}          !^m\.
# Can not read and write cookie in same request, must duplicate condition
RewriteCond %{QUERY_STRING} !(^|&)m=0(&|$) 

# Check to make sure we haven't set the cookie before
RewriteCond %{HTTP_COOKIE}        !^.*mredir=0.*$ [NC]

# Now redirect to the mobile site
RewriteRule ^ http://m.website.com [R,L]

I work in WordPress a lot so use PHP.

My method is to contain my HTML in a PHP Variable, and then echo the variable in data-content.

$my-data-content = '<form><input type="text"/></form>';

along with

data-content='<?php echo $my-data-content; ?>' 

There is a workaround by using the history API on modern browsers with fallback on old ones:

if(history.pushState) {
    history.pushState(null, null, '#myhash');
}
else {
    location.hash = '#myhash';
}

Credit goes to Lea Verou

Update: As of jQuery 1.4 you can use the .delay( n ) method. http://api.jquery.com/delay/

$('.notice').fadeIn().delay(2000).fadeOut('slow'); 

Note: $.show() and $.hide() by default are not queued, so if you want to use $.delay() with them, you need to configure them that way:

$('.notice')
    .show({duration: 0, queue: true})
    .delay(2000)
    .hide({duration: 0, queue: true});

You could possibly use the Queue syntax, this might work:

jQuery(function($){ 

var e = $('.notice'); 
e.fadeIn(); 
e.queue(function(){ 
  setTimeout(function(){ 
    e.dequeue(); 
  }, 2000 ); 
}); 
e.fadeOut('fast'); 

}); 

or you could be really ingenious and make a jQuery function to do it.

(function($){ 

  jQuery.fn.idle = function(time)
  { 
      var o = $(this); 
      o.queue(function()
      { 
         setTimeout(function()
         { 
            o.dequeue(); 
         }, time);
      });
  };
})(jQuery);

which would ( in theory , working on memory here ) permit you do to this:

$('.notice').fadeIn().idle(2000).fadeOut('slow'); 

I found a possible answer here: http://web.archive.org/web/20130329123237/http://www.csharpfriends.com/Articles/getArticle.aspx?articleID=63

From the article:

XPathDocument myXPathDoc = new XPathDocument(myXmlFile) ;
XslTransform myXslTrans = new XslTransform() ;
myXslTrans.Load(myStyleSheet);
XmlTextWriter myWriter = new XmlTextWriter("result.html",null) ;
myXslTrans.Transform(myXPathDoc,null,myWriter) ;

Edit:

But my trusty compiler says, XslTransform is obsolete: Use XslCompiledTransform instead:

XPathDocument myXPathDoc = new XPathDocument(myXmlFile) ;
XslCompiledTransform myXslTrans = new XslCompiledTransform();
myXslTrans.Load(myStyleSheet);
XmlTextWriter myWriter = new XmlTextWriter("result.html",null);
myXslTrans.Transform(myXPathDoc,null,myWriter);

1. Open the php.ini file.

2. Search keyword like upload_max_filesize in php.ini.

3. Then change the size of file.

   upload_max_filesize = 400M

4. Need to change the max post value.

   post_max_size = 400M

You need to use delegates and protocols. Here is a site with an example http://iosdevelopertips.com/objective-c/the-basics-of-protocols-and-delegates.html

Last I looked -- a couple of years ago -- there wasn't an easy option and the "solution" (which I did not agree with) was screen-scraping a number of websites. It may be easier now but I would still be surprised to see something, well, useful.

The problem here is that the data is immensely valuable (and very expensive), so while defining a method of retrieving it would be easy, getting the trading venues to part with their data would be next to impossible. Some of the MTFs (currently) provide their data for free but I'm not sure how you would get it without paying someone else, like Reuters, for it.

Try this one out I personally use it:

SHOW COLUMNS FROM $table where field REGEXP 'stock_id|drug_name' 

if some reason two versions of jQuery are loaded (which is not recommended), calling $.noConflict(true) from the second version will return the globally scoped jQuery variables to those of the first version.

Some times it could be issue with older version (or not stable version) of JQuery files

Solution use $.noConflict();

<script src="other_lib.js"></script>
<script src="jquery.js"></script>
<script>
$.noConflict();
jQuery( document ).ready(function( $ ) {
   $("#opener").click(function() {
            $("#dialog1").dialog('open');
    });
});
// Code that uses other library's $ can follow here.
</script>

BigDecimal is Oracle's arbitrary-precision numerical library. BigDecimal is part of the Java language and is useful for a variety of applications ranging from the financial to the scientific (that's where sort of am).

There's nothing wrong with using doubles for certain calculations. Suppose, however, you wanted to calculate Math.Pi * Math.Pi / 6, that is, the value of the Riemann Zeta Function for a real argument of two (a project I'm currently working on). Floating-point division presents you with a painful problem of rounding error.

BigDecimal, on the other hand, includes many options for calculating expressions to arbitrary precision. The add, multiply, and divide methods as described in the Oracle documentation below "take the place" of +, *, and / in BigDecimal Java World:

http://docs.oracle.com/javase/7/docs/api/java/math/BigDecimal.html

The compareTo method is especially useful in while and for loops.

Be careful, however, in your use of constructors for BigDecimal. The string constructor is very useful in many cases. For instance, the code

BigDecimal onethird = new BigDecimal("0.33333333333");

utilizes a string representation of 1/3 to represent that infinitely-repeating number to a specified degree of accuracy. The round-off error is most likely somewhere so deep inside the JVM that the round-off errors won't disturb most of your practical calculations. I have, from personal experience, seen round-off creep up, however. The setScale method is important in these regards, as can be seen from the Oracle documentation.

As of python 2.7, optparse is deprecated, and will hopefully go away in the future.

argparse is better for all the reasons listed on its original page (https://code.google.com/archive/p/argparse/):

• handling positional arguments
• supporting sub-commands
• allowing alternative option prefixes like + and /
• handling zero-or-more and one-or-more style arguments
• producing more informative usage messages
• providing a much simpler interface for custom types and actions

More information is also in PEP 389, which is the vehicle by which argparse made it into the standard library.

Okay, first a few terms slightly oversimplified.

In git, a tag (like many other things) is what's called a treeish. It's a way of referring to a point in in the history of the project. Treeishes can be a tag, a commit, a date specifier, an ordinal specifier or many other things.

Now a branch is just like a tag but is movable. When you are "on" a branch and make a commit, the branch is moved to the new commit you made indicating it's current position.

Your HEAD is pointer to a branch which is considered "current". Usually when you clone a repository, HEAD will point to master which in turn will point to a commit. When you then do something like git checkout experimental, you switch the HEAD to point to the experimental branch which might point to a different commit.

Now the explanation.

When you do a git checkout v2.0, you are switching to a commit that is not pointed to by a branch. The HEAD is now "detached" and not pointing to a branch. If you decide to make a commit now (as you may), there's no branch pointer to update to track this commit. Switching back to another commit will make you lose this new commit you've made. That's what the message is telling you.

Usually, what you can do is to say git checkout -b v2.0-fixes v2.0. This will create a new branch pointer at the commit pointed to by the treeish v2.0 (a tag in this case) and then shift your HEAD to point to that. Now, if you make commits, it will be possible to track them (using the v2.0-fixes branch) and you can work like you usually would. There's nothing "wrong" with what you've done especially if you just want to take a look at the v2.0 code. If however, you want to make any alterations there which you want to track, you'll need a branch.

You should spend some time understanding the whole DAG model of git. It's surprisingly simple and makes all the commands quite clear.

If you are using C# and the Identity column is int, create a new instance of int without providing any value to it.It worked for me.

[identity_column] = new int()

See the official documentation (http://docs.oracle.com/cd/B19306_01/server.102/b14200/sql_elements001.htm#i54330)

Variable-length character string having maximum length size bytes or characters. Maximum size is 4000 bytes or characters, and minimum is 1 byte or 1 character. You must specify size for VARCHAR2. BYTE indicates that the column will have byte length semantics; CHAR indicates that the column will have character semantics.

But in Oracle Databast 12c maybe 32767 (http://docs.oracle.com/database/121/SQLRF/sql_elements001.htm#SQLRF30020)

Variable-length character string having maximum length size bytes or characters. You must specify size for VARCHAR2. Minimum size is 1 byte or 1 character. Maximum size is: 32767 bytes or characters if MAX_STRING_SIZE = EXTENDED 4000 bytes or characters if MAX_STRING_SIZE = STANDARD

You can use:

  const sha1 = require('sha1');
  const crypt = sha1('Text');
  console.log(crypt);

For install:

  sudo npm install -g sha1
  npm install sha1 --save

In one line, but first import IO

import pandas as pd
import io   

TESTDATA="""col1;col2;col3
1;4.4;99
2;4.5;200
3;4.7;65
4;3.2;140
"""

df = pd.read_csv(  io.StringIO(TESTDATA)  , sep=";")
print ( df )

from Google's oauth JavaScript API:

http://code.google.com/p/google-api-javascript-client/wiki/Authentication

See the area where it reads:

Setting up Authentication

The client's implementation of OAuth 2.0 uses a popup window to prompt the user to sign-in and approve the application. The first call to gapi.auth.authorize can trigger popup blockers, as it opens the popup window indirectly. To prevent the popup blocker from triggering on auth calls, call gapi.auth.init(callback) when the client loads. The supplied callback will be executed when the library is ready to make auth calls.

I would guess its relating to the real answer above in how it explains if there is an immediate response, it won't trip the popup alarm. The "gapi.auth.init" is making it so the api happens immediately.

Practical Application

I made an open source authentication microservice using node passport on npm and the various passport packages for each provider. I used a standard redirect approach to the 3rd party giving it a redirect URL to come back to. This was programmatic so I could have different places to redirect back to if login/signup and on particular pages.

github.com/sebringj/athu

passportjs.org

Be aware, that \W leaves the underscore. A short equivalent for [^a-zA-Z0-9] would be [\W_]

text.replace(/[\W_]+/g," ");

\W is the negation of shorthand \w for [A-Za-z0-9_] word characters (including the underscore)

Example at regex101.com

I don't think it's a good idea to caculate yourself.

If you just want a pretty output, just covert it into str with str() function or directly print() it.

And if there's further usage of the hours and minutes, you can parse it to datetime object use datetime.strptime()(and extract the time part with datetime.time() mehtod), for example:

import datetime

delta = datetime.timedelta(seconds=10000)
time_obj = datetime.datetime.strptime(str(delta),'%H:%M:%S').time()

Disabled controls cannot be successful, and a successful control is "valid" for submission. This is the reason why disabled controls don't submit with the form.

In Simple Words -

The export statement is used when creating JavaScript modules to export functions, objects, or primitive values from the module so they can be used by other programs with the import statement.

Here is a link to get clear understanding : MDN Web Docs

You can create an array with a range using splat,

>> a=*(1..10)
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

using Kernel Array method,

Array (1..10)
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

or using to_a

(1..10).to_a
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

Using sshpass works best. To just include your password in scp use the ' ':

scp user1:'password'@xxx.xxx.x.5:sys_config /var/www/dev/

How about the Omondo Plugin for Eclipse. I have used it and I find it to be quite useful. Although if you are generating diagrams for large sources, you might have to start Eclipse with more memory.

If you're using zsh, you can use multiple redirections, so you don't even need tee:

./cmd 1>&1 2>&2 1>out_file 2>err_file

Here you're simply redirecting each stream to itself and the target file.

Full example

% (echo "out"; echo "err">/dev/stderr) 1>&1 2>&2 1>/tmp/out_file 2>/tmp/err_file
out
err
% cat /tmp/out_file
out
% cat /tmp/err_file
err

Note that this requires the MULTIOS option to be set (which is the default).

MULTIOS

Perform implicit tees or cats when multiple redirections are attempted (see Redirection).

Git has a configuration setting that tells it whether to be case sensitive or insensitive: core.ignorecase. To tell Git to be case-senstive, simply set this setting to false. (Be careful if you have already pushed the files, then you should first move them given the other answers).

git config core.ignorecase false

Documentation

From the git config documentation:

core.ignorecase

If true, this option enables various workarounds to enable git to work better on filesystems that are not case sensitive, like FAT. For example, if a directory listing finds makefile when git expects Makefile, git will assume it is really the same file, and continue to remember it as Makefile.

The default is false, except git-clone(1) or git-init(1) will probe and set core.ignorecase true if appropriate when the repository is created.

Case-insensitive file-systems

The two most popular operating systems that have case-insensitive file systems that I know of are

• Windows
• OS X

FYI to anyone who runs into problems, there is a bug in CSV timestamp export that I just spent a few hours working around. Some fields I needed to export were of type timestamp. It appears the CSV export option even in the current version (3.0.04 as of this posting) fails to put the grouping symbols around timestamps. Very frustrating since spaces in the timestamps broke my import. The best workaround I found was to write my query with a TO_CHAR() on all my timestamps, which yields the correct output, albeit with a little more work. I hope this saves someone some time or gets Oracle on the ball with their next release.

This should do the trick in a cross-platform way (so long as you're not using the interpreter or something):

import os, sys
non_symbolic=os.path.realpath(sys.argv[0])
program_filepath=os.path.join(sys.path[0], os.path.basename(non_symbolic))

sys.path[0] is the directory that your calling script is in (the first place it looks for modules to be used by that script). We can take the name of the file itself off the end of sys.argv[0] (which is what I did with os.path.basename). os.path.join just sticks them together in a cross-platform way. os.path.realpath just makes sure if we get any symbolic links with different names than the script itself that we still get the real name of the script.

I don't have a Mac; so, I haven't tested this on one. Please let me know if it works, as it seems it should. I tested this in Linux (Xubuntu) with Python 3.4. Note that many solutions for this problem don't work on Macs (since I've heard that __file__ is not present on Macs).

Note that if your script is a symbolic link, it will give you the path of the file it links to (and not the path of the symbolic link).

In Windows, you can use the following registry script to add "Delete SVN Folders" to your right click context menu. Run it on any directory containing those pesky files.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Folder\shell\DeleteSVN]
@="Delete SVN Folders"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Folder\shell\DeleteSVN\command]
@="cmd.exe /c \"TITLE Removing SVN Folders in %1 && COLOR 9A && FOR /r \"%1\" %%f IN (.svn) DO RD /s /q \"%%f\" \""

Here is sample code using camera api

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.util.SparseArray;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import java.io.IOException;
import com.google.android.gms.vision.CameraSource;
import com.google.android.gms.vision.Detector;
import com.google.android.gms.vision.Frame;
import com.google.android.gms.vision.barcode.Barcode;
import com.google.android.gms.vision.barcode.BarcodeDetector;

public class MainActivity extends AppCompatActivity {

TextView barcodeInfo;
SurfaceView cameraView;
CameraSource cameraSource;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    cameraView = (SurfaceView) findViewById(R.id.camera_view);
      barcodeInfo = (TextView) findViewById(R.id.txtContent);


    BarcodeDetector barcodeDetector =
            new BarcodeDetector.Builder(this)
                    .setBarcodeFormats(Barcode.CODE_128)//QR_CODE)
                    .build();

    cameraSource = new CameraSource
            .Builder(this, barcodeDetector)
            .setRequestedPreviewSize(640, 480)
            .build();

    cameraView.getHolder().addCallback(new SurfaceHolder.Callback() {
        @Override
        public void surfaceCreated(SurfaceHolder holder) {

            try {
                cameraSource.start(cameraView.getHolder());
            } catch (IOException ie) {
                Log.e("CAMERA SOURCE", ie.getMessage());
            }
        }

        @Override
        public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
        }

        @Override
        public void surfaceDestroyed(SurfaceHolder holder) {
            cameraSource.stop();
        }
    });


    barcodeDetector.setProcessor(new Detector.Processor<Barcode>() {
        @Override
        public void release() {
        }

        @Override
        public void receiveDetections(Detector.Detections<Barcode> detections) {

            final SparseArray<Barcode> barcodes = detections.getDetectedItems();

            if (barcodes.size() != 0) {
                barcodeInfo.post(new Runnable() {    // Use the post method of the TextView
                    public void run() {
                        barcodeInfo.setText(    // Update the TextView
                                barcodes.valueAt(0).displayValue
                        );
                    }
                });
            }
        }
    });
}
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.gateway.cameraapibarcode.MainActivity">

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <SurfaceView
        android:layout_width="640px"
        android:layout_height="480px"
        android:layout_centerVertical="true"
        android:layout_alignParentLeft="true"
        android:id="@+id/camera_view"/>

    <TextView
        android:text=" code reader"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/txtContent"/>
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Process"
        android:id="@+id/button"
        android:layout_alignParentTop="true"
        android:layout_alignParentStart="true" />
    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/imgview"/>
</LinearLayout>
</RelativeLayout>

build.gradle(Module:app)

add compile 'com.google.android.gms:play-services:7.8.+' in dependencies

$date = new \DateTime("now", new \DateTimeZone('Asia/Calcutta') );
         $day = $date->format('D');
         $weekendnaame = weekedName();
         $weekid =$weekendnaame[$day];
          $dayname = 0;
        $weekiarray = weekendArray($weekid);
        foreach ($weekiarray as $key => $value) {
            if (in_array($value, $request->get('week_id')))
          {
            $dayname = $key+1;
            break;
          }
        }


weeknDate($dayname),

function weeked(){
  $week = array("1"=>"Sunday", "2"=>"Monday", "3"=>"Tuesday", "4"=>"Wednesday", "5"=>"Thursday", "6"=>"Friday", "7"=>"Saturday");
  return $week;
}
function weekendArray($day){
        $favcolor = $day;

switch ($favcolor) {
  case 1:
    $array = array(2,3,4,5,6,7,1);
    break;
  case 2:
    $array = array(3,4,5,6,7,1,2);
    break;
  case 3:
    $array = array(4,5,6,7,1,2,3);
    break;
    case 4:
    $array = array(5,6,7,1,2,3,4);
    break;
    case 5:
    $array = array(6,7,1,2,3,4,5);
    break;
    case 6:
    $array = array(7,1,2,3,4,5,6);
    break;
     case 7:
    $array = array(1,2,3,4,5,6,7);
    break;
  default:
    $array = array(1,2,3,4,5,6,7);
}
return  $array;
}
function weekedName(){
  $week = array("Sun"=>0,"Mun"=>1,"Tue"=>3,"Wed"=>4,"Thu"=>5,"Fri"=>6,"Sat"=>7);
  return $week;
}

import inspect

def func(a,b,c=5):
    pass

inspect.getargspec(func)  # inspect.signature(func) in Python 3

(['a', 'b', 'c'], None, None, (5,))

You can use BigInteger:

From Integers:

byte[] array = BigInteger.valueOf(0xAABBCCDD).toByteArray();
System.out.println(Arrays.toString(array))
// --> {-86, -69, -52, -35 }

The returned array is of the size that is needed to represent the number, so it could be of size 1, to represent 1 for example. However, the size cannot be more than four bytes if an int is passed.

From Strings:

BigInteger v = new BigInteger("AABBCCDD", 16);
byte[] array = v.toByteArray();

However, you will need to watch out, if the first byte is higher 0x7F (as is in this case), where BigInteger would insert a 0x00 byte to the beginning of the array. This is needed to distinguish between positive and negative values.

Since Beautiful Soup 4.4.0. a parameter called string does the work that text used to do in the previous versions.

string is for finding strings, you can combine it with arguments that find tags: Beautiful Soup will find all tags whose .string matches your value for the string. This code finds the tags whose .string is “Elsie”:

soup.find_all("td", string="Elsie")

For more information about string have a look this section https://www.crummy.com/software/BeautifulSoup/bs4/doc/#the-string-argument

I would recommend the rename command for this. Type ren /? at the command line for more help.

I made this simple function to achieve this:

void clearscreen() { 
    for(int i=0; i<10; i++) {
        Serial.println("\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
    }
}

It works well for me in the default terminal

Ansible has a version_compare filter since 1.6. You can do something like below in when conditional:

when: ansible_distribution_version | version_compare('12.04', '>=')

This will give you support for major & minor versions comparisons and you can compare versions using operators like:

<, lt, <=, le, >, gt, >=, ge, ==, =, eq, !=, <>, ne

You can find more information about this here: Ansible - Version comparison filters

Otherwise if you have really simple case you can use what @ProfHase85 suggested

To rethrow do

 throw $e;

not the message.

You can check Fiddler if NPM is giving Authentication error. It is easy to install and configure. Set Fiddler Rule to Automatically Authenticated.In .npmrc set these properties

registry=http://registry.npmjs.org
proxy=http://127.0.0.1:8888
https-proxy=http://127.0.0.1:8888
http-proxy=http://127.0.0.1:8888
strict-ssl=false

It worked for me :)

Yes. It is also true for for scope. But not functions of course.

In your example: if the condition in the if statement is false, x will not be defined though.

As this is a High traffic post i hope to provide here an answer slightly more undetermined to the original question and thus to provide further background on a JSON Hijacking attack and its consequences

JSON Hijacking as the name suggests is an attack similar to Cross-Site Request Forgery where an attacker can access cross-domain sensitive JSON data from applications that return sensitive data as array literals to GET requests. An example of a JSON call returning an array literal is shown below:

[{"id":"1001","ccnum":"4111111111111111","balance":"2345.15"}, 
{"id":"1002","ccnum":"5555555555554444","balance":"10345.00"}, 
{"id":"1003","ccnum":"5105105105105100","balance":"6250.50"}]

This attack can be achieved in 3 major steps:

Step 1: Get an authenticated user to visit a malicious page. Step 2: The malicious page will try and access sensitive data from the application that the user is logged into.This can be done by embedding a script tag in an HTML page since the same-origin policy does not apply to script tags.

<script src="http://<jsonsite>/json_server.php"></script>

The browser will make a GET request to json_server.php and any authentication cookies of the user will be sent along with the request. Step 3: At this point while the malicious site has executed the script it does not have access to any sensitive data. Getting access to the data can be achieved by using an object prototype setter. In the code below an object prototypes property is being bound to the defined function when an attempt is being made to set the "ccnum" property.

Object.prototype.__defineSetter__('ccnum',function(obj){

secrets =secrets.concat(" ", obj);

});

At this point the malicious site has successfully hijacked the sensitive financial data (ccnum) returned byjson_server.php JSON

It should be noted that not all browsers support this method; the proof of concept was done on Firefox 3.x.This method has now been deprecated and replaced by the useObject.defineProperty There is also a variation of this attack that should work on all browsers where full named JavaScript (e.g. pi=3.14159) is returned instead of a JSON array.

There are several ways in which JSON Hijacking can be prevented:

• Since SCRIPT tags can only generate HTTP GET requests, only return JSON objects to POST requests.

• Prevent the web browser from interpreting the JSON object as valid JavaScript code.

• Implement Cross-Site Request Forgery protection by requiring that a predefined random value be required for all JSON requests.

so as you can see While(1) comes under the last option. In the most simple terms, while(1) is an infinite loop which will run till a break statement is issued explicitly. And thus what would be described as a lock for the key to be applied (google break statement). Therefore a JSON hijacking, in which the Hacker has no key will be consistently dismissed.Alas, If you read the JSON block with a parser, the while(1) loop is ignored.

So in conclusion, the while(1) loop can more easily visualised as a simple break statement cipher that google can use to control flow of data.

However the key word in that statement is the word 'simple'. The usage of authenticated infinite loops has been thankfully removed from basic practice in the years since 2010 due to its absolute decimation of CPU usage when isolated (and the fact the internet has moved away from forcing through crude 'quick-fixes'). Today instead the codebase has preventative measures embedded and the system is not crucial nor effective anymore. (part of this is the move away from JSON Hijacking to more fruitful datafarming techniques that i wont go into at present)

*

Because this is the top result on google on jquery ui and bootstrap.js I decided to add this as community wiki.

I am using:

• Bootstrap v3.2.0
• jquery-2.1.0
• jquery-ui-1.10.3

and somehow when I include bootstrap.js it disables the dropdown of the jquery ui autocomplete.

my three workarounds:

• exclude bootstrap.js
• or more to typeahead lib
• move from bootstrap.js to bootstrap.min.js (strange, but worked for me)

I'm going to say right off the bat that you will not be able to achieve the look they have with radio buttons with strictly CSS.

You could, however, stick to the list style in the example you posted and replace the anchors with clickable spans that would trigger a javascript event that would in turn save that rating to your database via ajax.

If you went that route you would probably also want to save a cookie to the users machine so that they could not submit over and over again to your database. That would prevent them from submitting more than once at least until they deleted their cookies.

But of course there are many ways to address this problem. This is just one of them. Hope that helps.

Examples to clarify the important issue in accepted answer's comments

I didn't understand it until I played around with it myself, so I figured there would be others who were confused as well. Say you are working on the user whose id == 6 and whose no_of_logins == 30 when you start.

# 1 (bad)
user.no_of_logins += 1
# result: UPDATE user SET no_of_logins = 31 WHERE user.id = 6

# 2 (bad)
user.no_of_logins = user.no_of_logins + 1
# result: UPDATE user SET no_of_logins = 31 WHERE user.id = 6

# 3 (bad)
setattr(user, 'no_of_logins', user.no_of_logins + 1)
# result: UPDATE user SET no_of_logins = 31 WHERE user.id = 6

# 4 (ok)
user.no_of_logins = User.no_of_logins + 1
# result: UPDATE user SET no_of_logins = no_of_logins + 1 WHERE user.id = 6

# 5 (ok)
setattr(user, 'no_of_logins', User.no_of_logins + 1)
# result: UPDATE user SET no_of_logins = no_of_logins + 1 WHERE user.id = 6

The point

By referencing the class instead of the instance, you can get SQLAlchemy to be smarter about incrementing, getting it to happen on the database side instead of the Python side. Doing it within the database is better since it's less vulnerable to data corruption (e.g. two clients attempt to increment at the same time with a net result of only one increment instead of two). I assume it's possible to do the incrementing in Python if you set locks or bump up the isolation level, but why bother if you don't have to?

A caveat

If you are going to increment twice via code that produces SQL like SET no_of_logins = no_of_logins + 1, then you will need to commit or at least flush in between increments, or else you will only get one increment in total:

# 6 (bad)
user.no_of_logins = User.no_of_logins + 1
user.no_of_logins = User.no_of_logins + 1
session.commit()
# result: UPDATE user SET no_of_logins = no_of_logins + 1 WHERE user.id = 6

# 7 (ok)
user.no_of_logins = User.no_of_logins + 1
session.flush()
# result: UPDATE user SET no_of_logins = no_of_logins + 1 WHERE user.id = 6
user.no_of_logins = User.no_of_logins + 1
session.commit()
# result: UPDATE user SET no_of_logins = no_of_logins + 1 WHERE user.id = 6

If you are talking about actually compressing the text not just shortening then Deflate/gzip (wrapper around gzip), zip work well for smaller files and text. Other algorithms are highly efficient for larger files like bzip2 etc.

Wikipedia has a list of compression times. (look for comparison of efficiency)

Name       | Text         | Binaries      | Raw images
-----------+--------------+---------------+-------------
7-zip      | 19% in 18.8s | 27% in  59.6s | 50% in 36.4s
bzip2      | 20% in  4.7s | 37% in  32.8s | 51% in 20.0s
rar (2.01) | 23% in 30.0s | 36% in 275.4s | 58% in 52.7s
advzip     | 24% in 21.1s | 37% in  70.6s | 57& in 41.6s
gzip       | 25% in  4.2s | 39% in  23.1s | 60% in  5.4s
zip        | 25% in  4.3s | 39% in  23.3s | 60% in  5.7s

Here is a more elaborated solution with a SQL function:

GetFirstname

CREATE FUNCTION [dbo].[ufn_GetFirstName]  
(  
 @FullName varchar(500)  
)  
RETURNS varchar(500)  
AS  
BEGIN  
 -- Declare the return variable here  
 DECLARE @RetName varchar(500)  

 SET @FullName = replace( replace( replace( replace( @FullName, '.', '' ), 'Mrs', '' ), 'Ms', '' ), 'Mr', '' )  

 SELECT   
  @RetName =   
    CASE WHEN charindex( ' ', ltrim( rtrim( @FullName ) ) ) > 0 THEN left( ltrim( rtrim( @FullName ) ), charindex( ' ', ltrim( rtrim( @FullName  ) ) ) - 1 ) ELSE '' END  

 RETURN @RetName  
END

GetLastName

CREATE FUNCTION [dbo].[ufn_GetLastName]  
(  
 @FullName varchar(500)  
)  
RETURNS varchar(500)  
AS  
BEGIN  
 DECLARE @RetName varchar(500)  

 IF(right(ltrim(rtrim(@FullName)), 2) <> ' I')  
 BEGIN  
  set @RetName = left(   
   CASE WHEN   
    charindex( ' ', reverse( ltrim( rtrim(   
    replace( replace( replace( replace( replace( replace( @FullName, ' Jr', '' ), ' III', '' ), ' II', '' ), ' Jr.', '' ), ' Sr', ''), 'Sr.', '')  
    ) ) ) ) > 0   
   THEN   
    right( ltrim( rtrim(   
    replace( replace( replace( replace( replace( replace( @FullName, ' Jr', '' ), ' III', '' ), ' II', '' ), ' Jr.', '' ), ' Sr', ''), 'Sr.', '')  
    ) ) , charindex( ' ', reverse( ltrim( rtrim(   
    replace( replace( replace( replace( replace( replace( @FullName, ' Jr', '' ), ' III', '' ), ' II', '' ), ' Jr.', '' ), ' Sr', ''), 'Sr.', '')  
    ) ) )  ) - 1 )   
   ELSE '' END  
  , 25 )  
 END  
 ELSE  
 BEGIN  
  SET @RetName = left(   
   CASE WHEN   
    charindex( ' ', reverse( ltrim( rtrim(   
    replace( replace( replace( replace( replace( replace( replace( @FullName, ' Jr', '' ), ' III', '' ), ' II', '' ), ' I', '' ), ' Jr.', '' ), ' Sr', ''), 'Sr.', '')  
    ) ) ) ) > 0   
   THEN   
    right( ltrim( rtrim(   
    replace( replace( replace( replace( replace( replace( replace( @FullName, ' Jr', '' ), ' III', '' ), ' II', '' ), ' I', '' ), ' Jr.', '' ), ' Sr', ''), 'Sr.', '')  
    ) ) , charindex( ' ', reverse( ltrim( rtrim(   
    replace( replace( replace( replace( replace( replace( replace( @FullName, ' Jr', '' ), ' III', '' ), ' II', '' ), ' I', '' ), ' Jr.', '' ), ' Sr', ''), 'Sr.', '')  
    ) ) )  ) - 1 )   
   ELSE '' END  
  , 25 )  
 END  

 RETURN @RetName  
END

USE:

SELECT dbo.ufn_GetFirstName(Fullname) as FirstName, dbo.ufn_GetLastName(Fullname) as LastName FROM #Names

The select() function from dplyr is powerful for subsetting columns. See ?select_helpers for a list of approaches.

In this case, where you have a common prefix and sequential numbers for column names, you could use num_range:

library(dplyr)

df1 <- data.frame(first = 0, col1 = 1, col2 = 2, col3 = 3, col4 = 4)
df1 %>%
  select(num_range("col", c(1, 4)))
#>   col1 col4
#> 1    1    4

More generally you can use the minus sign in select() to drop columns, like:

mtcars %>%
   select(-mpg, -wt)

Finally, to your question "is there an easy way to create a workable vector of column names?" - yes, if you need to edit a list of names manually, use dput to get a comma-separated, quoted list you can easily manipulate:

dput(names(mtcars))
#> c("mpg", "cyl", "disp", "hp", "drat", "wt", "qsec", "vs", "am", 
#> "gear", "carb")

See the answer 'favorite bit of code' that works

Here is how I used it:

     // Delete all rows from the WebLog table via the EF database context object
    // using a where clause that returns an IEnumerable typed list WebLog class 
    public IEnumerable<WebLog> DeleteAllWebLogEntries()
    {
        IEnumerable<WebLog> myEntities = context.WebLog.Where(e => e.WebLog_ID > 0);
        context.WebLog.RemoveRange(myEntities);
        context.SaveChanges();

        return myEntities;
    }

Another way of setting the default to the HTML web forms editor is:

1. At the top menu in Visual Studio go to File > New > File
2. Select HTML Page
3. In the lower right corner of the New File dialog on the Open button there is a down arrow
4. Click it and you should see an option Open With
5. Select HTML (Web Forms) Editor
6. Click Set as Default
7. Press OK

child_process.spawn returns an object with stdout and stderr streams. You can tap on the stdout stream to read data that the child process sends back to Node. stdout being a stream has the "data", "end", and other events that streams have. spawn is best used to when you want the child process to return a large amount of data to Node - image processing, reading binary data etc.

so you can solve your problem using child_process.spawn as used below.

var spawn = require('child_process').spawn,
ls = spawn('coffee -cw my_file.coffee');

ls.stdout.on('data', function (data) {
  console.log('stdout: ' + data.toString());
});

ls.stderr.on('data', function (data) {
  console.log('stderr: ' + data.toString());
});

ls.on('exit', function (code) {
  console.log('code ' + code.toString());
});

leftclickben answer worked for me, but I wanted a path from a given node back up the tree to the root, and these seemed to be going the other way, down the tree. So, I had to flip some of the fields around and renamed for clarity, and this works for me, in case this is what anyone else wants too--

item | parent
-------------
1    | null
2    | 1
3    | 1
4    | 2
5    | 4
6    | 3

and

select t.item_id as item, @pv:=t.parent as parent
from (select * from item_tree order by item_id desc) t
join
(select @pv:=6)tmp
where t.item_id=@pv;

gives:

item | parent
-------------
6    | 3
3    | 1
1    | null

Just be careful when dividing by 60: division between integers returns an integer -> 12/60 = 0 unless you import division from future. The following is copy and pasted from Python 2.6.2:

IDLE 2.6.2      
>>> 12/60
0
>>> from __future__ import division
>>> 12/60
0.20000000000000001

You can also restore your downloaded Atlas Backup .wt WiredTiger files (which unzips or untar as a restore folder) to your local MongoDB.

First, make a backup of your /data/db path. Call it /data_20200407/db. Second, copy paste all the .wt files from your Atlas Backup restore folder into your local /data/db path. Restart your Ubuntu or MongoDB server. Start your Mongo shell and you should have those restored files there.

Its not possible to access any PHP function inside Twig directly.

What you can do is write a Twig extension. A common structure is, writing a service with some utility functions, write a Twig extension as bridge to access the service from twig. The Twig extension will use the service and your controller can use the service too.

Take a look: http://symfony.com/doc/current/cookbook/templating/twig_extension.html

Cheers.

Their feature sets are not at all the same. Sqlite is an embedded database which has no network capabilities (unless you add them). So you can't use it on a network.

If you need

• Network access - for example accessing from another machine;
• Any real degree of concurrency - for example, if you think you are likely to want to run several queries at once, or run a workload that has lots of selects and a few updates, and want them to go smoothly etc.
• a lot of memory usage, for example, to buffer parts of your 1Tb database in your 32G of memory.

You need to use mysql or some other server-based RDBMS.

Note that MySQL is not the only choice and there are plenty of others which might be better for new applications (for example pgSQL).

Sqlite is a very, very nice piece of software, but it has never made claims to do any of these things that RDBMS servers do. It's a small library which runs SQL on local files (using locking to ensure that multiple processes don't screw the file up). It's really well tested and I like it a lot.

Also, if you aren't able to choose this correctly by yourself, you probably need to hire someone on your team who can.

Sometime you must to give all the link like this

System.Web.HttpContext.Current.Request.UrlReferrer.ToString();

(in option when "Current" not founded)

Consider the following code:

public String removeChar(String str, Integer n) {
    String front = str.substring(0, n);
    String back = str.substring(n+1, str.length());
    return front + back;
}

The bootstrap-live-customizer is a good resource for customising your own bootstrap theme and seeing the results live as you customise. Using this website its very easy to just edit the font and then download the updated .css file.

I don't believe you can do just a string, but if you put the string inside of a <span> with the correct attributes (size, font-weight, etc); you should then be able to use jQuery to get the width of the span.

<span id='string_span' style='font-weight: bold; font-size: 12'>Here is my string</span>
<script>
  $('#string_span').width();
</script>

std::vector always makes a copy of whatever is being stored in the vector.

If you are keeping a vector of pointers, then it will make a copy of the pointer, but not the instance being to which the pointer is pointing. If you are dealing with large objects, you can (and probably should) always use a vector of pointers. Often, using a vector of smart pointers of an appropriate type is good for safety purposes, since handling object lifetime and memory management can be tricky otherwise.

Correct. It's called the ternary operator. Some also call it the conditional operator.

using ClosedXML.Excel;

   public ActionResult Downloadexcel()
    {   
        var Emplist = JsonConvert.SerializeObject(dbcontext.Employees.ToList());
        DataTable dt11 = (DataTable)JsonConvert.DeserializeObject(Emplist, (typeof(DataTable)));
        dt11.TableName = "Emptbl";
        FileContentResult robj;
        using (XLWorkbook wb = new XLWorkbook())
        {
            wb.Worksheets.Add(dt11);
            using (MemoryStream stream = new MemoryStream())
            {
                wb.SaveAs(stream);
                var bytesdata = File(stream.ToArray(), "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "myFileName.xlsx");
                robj = bytesdata;
            }
        }


        return Json(robj, JsonRequestBehavior.AllowGet);
    }

Reading the original comment, rutherford is looking for a cross-browser way to wrap unbroken text (inferred by his use of word-wrap for IE, designed to break unbroken strings).

/* Source: http://snipplr.com/view/10979/css-cross-browser-word-wrap */
.wordwrap { 
   white-space: pre-wrap;      /* CSS3 */   
   white-space: -moz-pre-wrap; /* Firefox */    
   white-space: -pre-wrap;     /* Opera <7 */   
   white-space: -o-pre-wrap;   /* Opera 7 */    
   word-wrap: break-word;      /* IE */
}

I've used this class for a bit now, and works like a charm. (note: I've only tested in FireFox and IE)

you may check from a python notebook cell as follows

!pip install --upgrade nltk     # needed if nltk is not already installed
import nltk      
print('The nltk version is {}.'.format(nltk.__version__))
print('The nltk version is '+ str(nltk.__version__))

and

#!pip install --upgrade sklearn      # needed if sklearn is not already installed
import sklearn
print('The scikit-learn version is {}.'.format(sklearn.__version__))
print('The scikit-learn version is '+ str(nltk.__version__))

A solution without the Desktop environment is BrowserLauncher2. This solution is more general as on Linux, Desktop is not always available.

The lenghty answer is posted at https://stackoverflow.com/a/21676290/873282

As far as I know, a browser session doesn't have an id.

If you mean the server session, that is usually stored in a cookie. The cookie that ASP.NET stores, for example, is named "ASP.NET_SessionId".

Thanks for enlightening us Cypawer.

I also tried this app https://play.google.com/store/apps/details?id=com.oneguyinabasement.leapwifi

and it worked flawlessly.

An alternative solution to changing the font size is to change the padding. When Python saves your PNG, you can change the layout using the dialogue box that opens. The spacing between the axes, padding if you like can be altered at this stage.

STEP 1: To check the connected devices, run: flutter devices

STEP 2: If there are no connected devices to see the list of available emulators, run: flutter emulators

STEP 3: To run an emulator, run: flutter emulators --launch <emulator id>

STEP 4: If there is no available emulator, run: flutter emulators --create [--name xyz]

==> FOR ANDROID:

STEP 1: To check the list of emulators, run: emulator -list-avds

STEP 2: Now to launch the emulator, run: emulator -avd avd_name

==> FOR IOS:

STEP 1: open -a simulator

STEP 2: flutter run (In your app directory)

I hope this will solve your problem.

There are several ways, although I do believe the one you mention (and dislike) is the most readable one.

>>> t=datetime.date.today()
>>> datetime.datetime.fromordinal(t.toordinal())
datetime.datetime(2009, 12, 20, 0, 0)
>>> datetime.datetime(t.year, t.month, t.day)
datetime.datetime(2009, 12, 20, 0, 0)
>>> datetime.datetime(*t.timetuple()[:-4])
datetime.datetime(2009, 12, 20, 0, 0)

and so forth -- but basically they all hinge on appropriately extracting info from the date object and ploughing it back into the suitable ctor or classfunction for datetime.

Download MSBuild with the link from @Nicodemeus answer was OK, yet the installation was broken until I've added these keys into a register:

[HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\MSBuild\ToolsVersions\12.0]
"VCTargetsPath11"="$([MSBuild]::ValueOrDefault('$(VCTargetsPath11)','$(MSBuildExtensionsPath32)\\Microsoft.Cpp\\v4.0\\V110\\'))"
"VCTargetsPath"="$([MSBuild]::ValueOrDefault('$(VCTargetsPath)','$(MSBuildExtensionsPath32)\\Microsoft.Cpp\\v4.0\\V110\\'))" 

Another answer could be to use the tar.gz file instead in the Linux case. There seem to be something like that also for the solaris platform. This way all files will already be in the expected format and there won't be any unpacking issues.

Learning Google's JavaScript library is a good option. If you don't feel like getting into coding you might find Maps Engine Lite useful.

It is a tool recently published by Google where you can create your personal maps (create markers, draw geometries and adapt the colors and styles).

Here is an useful tutorial I found: Quick Tip: Embedding New Google Maps

JDBC is the predecessor of JPA.

JDBC is a bridge between the Java world and the databases world. In JDBC you need to expose all dirty details needed for CRUD operations, such as table names, column names, while in JPA (which is using JDBC underneath), you also specify those details of database metadata, but with the use of Java annotations.

So JPA creates update queries for you and manages the entities that you looked up or created/updated (it does more as well).

If you want to do JPA without a Java EE container, then Spring and its libraries may be used with the very same Java annotations.

Include a few #ifndef name #define name #endif preprocessor that should solve your problem. The issue is it going from the header to the function then back to the header so it is redefining the class with all the preprocessor(#include) multiple times.

using this func

private static String strDuration(long duration) {
    int ms, s, m, h, d;
    double dec;
    double time = duration * 1.0;

    time = (time / 1000.0);
    dec = time % 1;
    time = time - dec;
    ms = (int)(dec * 1000);

    time = (time / 60.0);
    dec = time % 1;
    time = time - dec;
    s = (int)(dec * 60);

    time = (time / 60.0);
    dec = time % 1;
    time = time - dec;
    m = (int)(dec * 60);

    time = (time / 24.0);
    dec = time % 1;
    time = time - dec;
    h = (int)(dec * 24);
    
    d = (int)time;
    
    return (String.format("%d d - %02d:%02d:%02d.%03d", d, h, m, s, ms));
}

SQL Server Management Studio 2005

When you right click on a database and click Tasks and then click Detach Database, it brings up a dialog with the active connections.

By clicking on the hyperlink under "Messages" you can kill the active connections.

You can then kill those connections without detaching the database.

More information here.

SQL Server Management Studio 2008

The interface has changed for SQL Server Management studio 2008, here are the steps (via: Tim Leung)

1. Right-click the server in Object Explorer and select 'Activity Monitor'.
2. When this opens, expand the Processes group.
3. Now use the drop-down to filter the results by database name.
4. Kill off the server connections by selecting the right-click 'Kill Process' option.

base

read.csv without the url function just works fine. Probably I am missing something if Dirk Eddelbuettel included it in his answer:

ad <- read.csv("http://www-bcf.usc.edu/~gareth/ISL/Advertising.csv")
head(ad)

  X    TV radio newspaper sales
1 1 230.1  37.8      69.2  22.1
2 2  44.5  39.3      45.1  10.4
3 3  17.2  45.9      69.3   9.3
4 4 151.5  41.3      58.5  18.5
5 5 180.8  10.8      58.4  12.9
6 6   8.7  48.9      75.0   7.2

Another options using two popular packages:

data.table

library(data.table)
ad <- fread("http://www-bcf.usc.edu/~gareth/ISL/Advertising.csv")
head(ad)

V1    TV radio newspaper sales
1:  1 230.1  37.8      69.2  22.1
2:  2  44.5  39.3      45.1  10.4
3:  3  17.2  45.9      69.3   9.3
4:  4 151.5  41.3      58.5  18.5
5:  5 180.8  10.8      58.4  12.9
6:  6   8.7  48.9      75.0   7.2

readr

library(readr)
ad <- read_csv("http://www-bcf.usc.edu/~gareth/ISL/Advertising.csv")
head(ad)

# A tibble: 6 x 5
     X1    TV radio newspaper sales
  <int> <dbl> <dbl>     <dbl> <dbl>
1     1 230.1  37.8      69.2  22.1
2     2  44.5  39.3      45.1  10.4
3     3  17.2  45.9      69.3   9.3
4     4 151.5  41.3      58.5  18.5
5     5 180.8  10.8      58.4  12.9
6     6   8.7  48.9      75.0   7.2

A general/reusable solution

This answer is provided for future reference to all those that bump into this problem. Solution consists of two things:

1. Custom exception ModelStateException that gets thrown when validation fails on the server (model state reports validation errors when we use data annotations and use strong typed controller action parameters)
2. Custom controller action error filter HandleModelStateExceptionAttribute that catches custom exception and returns HTTP error status with model state error in the body

This provides the optimal infrastructure for jQuery Ajax calls to use their full potential with success and error handlers.

Client side code

$.ajax({
    type: "POST",
    url: "some/url",
    success: function(data, status, xhr) {
        // handle success
    },
    error: function(xhr, status, error) {
        // handle error
    }
});

Server side code

[HandleModelStateException]
public ActionResult Create(User user)
{
    if (!this.ModelState.IsValid)
    {
        throw new ModelStateException(this.ModelState);
    }

    // create new user because validation was successful
}

The whole problem is detailed in this blog post where you can find all the code to run this in your application.

this is a reference to the current object. It is used in the constructor to distinguish between the local and the current class variable which have the same name. e.g.:

public class circle {
    int x;
    circle(int x){
        this.x =x;
        //class variable =local variable 
    }
} 

this can also be use to call one constructor from another constructor. e.g.:

public class circle {
    int x;

    circle() { 
        this(1);
    }

    circle(int x) {
        this.x = x; 
    }
}

Unless you configured a cache zone via proxy_cache_path and then used it (for example in a location block), via: proxy_cache nothing will get cached.

If you did, however, then according to the author of nginx, simply removing all files from the cache directory is enough.

Simplest way: find /path/to/your/cache -type f -delete

1. Don't give any headers.
2. Put your json data inside a .json file.
3. Select your both files one is your .txt file and other is .json file for your request param keys.

Here are two functions to get the page height and the scroll amounts (x,y) without the use of the (bloated) dimensions plugin:

// getPageScroll() by quirksmode.com
function getPageScroll() {
    var xScroll, yScroll;
    if (self.pageYOffset) {
      yScroll = self.pageYOffset;
      xScroll = self.pageXOffset;
    } else if (document.documentElement && document.documentElement.scrollTop) {
      yScroll = document.documentElement.scrollTop;
      xScroll = document.documentElement.scrollLeft;
    } else if (document.body) {// all other Explorers
      yScroll = document.body.scrollTop;
      xScroll = document.body.scrollLeft;
    }
    return new Array(xScroll,yScroll)
}

// Adapted from getPageSize() by quirksmode.com
function getPageHeight() {
    var windowHeight
    if (self.innerHeight) { // all except Explorer
      windowHeight = self.innerHeight;
    } else if (document.documentElement && document.documentElement.clientHeight) {
      windowHeight = document.documentElement.clientHeight;
    } else if (document.body) { // other Explorers
      windowHeight = document.body.clientHeight;
    }
    return windowHeight
}

All functions in Java are virtual by default.

You have to go out of your way to write non-virtual functions by adding the "final" keyword.

This is the opposite of the C++/C# default. Class functions are non-virtual by default; you make them so by adding the "virtual" modifier.

Let's approach this like Archimedes would have.

How can we generate a point uniformly in a triangle ABC, where |AB|=|BC|? Let's make this easier by extending to a parallelogram ABCD. It's easy to generate points uniformly in ABCD. We uniformly pick a random point X on AB and Y on BC and choose Z such that XBYZ is a parallelogram. To get a uniformly chosen point in the original triangle we just fold any points that appear in ADC back down to ABC along AC.

Now consider a circle. In the limit we can think of it as infinitely many isoceles triangles ABC with B at the origin and A and C on the circumference vanishingly close to each other. We can pick one of these triangles simply by picking an angle theta. So we now need to generate a distance from the center by picking a point in the sliver ABC. Again, extend to ABCD, where D is now twice the radius from the circle center.

Picking a random point in ABCD is easy using the above method. Pick a random point on AB. Uniformly pick a random point on BC. Ie. pick a pair of random numbers x and y uniformly on [0,R] giving distances from the center. Our triangle is a thin sliver so AB and BC are essentially parallel. So the point Z is simply a distance x+y from the origin. If x+y>R we fold back down.

Here's the complete algorithm for R=1. I hope you agree it's pretty simple. It uses trig, but you can give a guarantee on how long it'll take, and how many random() calls it needs, unlike rejection sampling.

t = 2*pi*random()
u = random()+random()
r = if u>1 then 2-u else u
[r*cos(t), r*sin(t)]

Here it is in Mathematica.

f[] := Block[{u, t, r},
  u = Random[] + Random[];
  t = Random[] 2 Pi;
  r = If[u > 1, 2 - u, u];
  {r Cos[t], r Sin[t]}
]

ListPlot[Table[f[], {10000}], AspectRatio -> Automatic]

Check out http://www.asciitable.com/

Look at the Hx, (Hex) column; 2C maps to ,

Any unusual encoding can be checked this way

+----+-----+----+-----+----+-----+----+-----+
| Hx | Chr | Hx | Chr | Hx | Chr | Hx | Chr |
+----+-----+----+-----+----+-----+----+-----+
| 00 | NUL | 20 | SPC | 40 |  @  | 60 |  `  |
| 01 | SOH | 21 |  !  | 41 |  A  | 61 |  a  |
| 02 | STX | 22 |  "  | 42 |  B  | 62 |  b  |
| 03 | ETX | 23 |  #  | 43 |  C  | 63 |  c  |
| 04 | EOT | 24 |  $  | 44 |  D  | 64 |  d  |
| 05 | ENQ | 25 |  %  | 45 |  E  | 65 |  e  |
| 06 | ACK | 26 |  &  | 46 |  F  | 66 |  f  |
| 07 | BEL | 27 |  '  | 47 |  G  | 67 |  g  |
| 08 | BS  | 28 |  (  | 48 |  H  | 68 |  h  |
| 09 | TAB | 29 |  )  | 49 |  I  | 69 |  i  |
| 0A | LF  | 2A |  *  | 4A |  J  | 6A |  j  |
| 0B | VT  | 2B |  +  | 4B |  K  | 6B |  k  |
| 0C | FF  | 2C |  ,  | 4C |  L  | 6C |  l  |
| 0D | CR  | 2D |  -  | 4D |  M  | 6D |  m  |
| 0E | SO  | 2E |  .  | 4E |  N  | 6E |  n  |
| 0F | SI  | 2F |  /  | 4F |  O  | 6F |  o  |
| 10 | DLE | 30 |  0  | 50 |  P  | 70 |  p  |
| 11 | DC1 | 31 |  1  | 51 |  Q  | 71 |  q  |
| 12 | DC2 | 32 |  2  | 52 |  R  | 72 |  r  |
| 13 | DC3 | 33 |  3  | 53 |  S  | 73 |  s  |
| 14 | DC4 | 34 |  4  | 54 |  T  | 74 |  t  |
| 15 | NAK | 35 |  5  | 55 |  U  | 75 |  u  |
| 16 | SYN | 36 |  6  | 56 |  V  | 76 |  v  |
| 17 | ETB | 37 |  7  | 57 |  W  | 77 |  w  |
| 18 | CAN | 38 |  8  | 58 |  X  | 78 |  x  |
| 19 | EM  | 39 |  9  | 59 |  Y  | 79 |  y  |
| 1A | SUB | 3A |  :  | 5A |  Z  | 7A |  z  |
| 1B | ESC | 3B |  ;  | 5B |  [  | 7B |  {  |
| 1C | FS  | 3C |  <  | 5C |  \  | 7C |  |  |
| 1D | GS  | 3D |  =  | 5D |  ]  | 7D |  }  |
| 1E | RS  | 3E |  >  | 5E |  ^  | 7E |  ~  |
| 1F | US  | 3F |  ?  | 5F |  _  | 7F | DEL |
+----+-----+----+-----+----+-----+----+-----+

This one works-

echo $_product->getData('ATTRIBUTE_NAME_HERE');

I recommend that you get in the habit, right now, of using ANSI-style joins, meaning you should use the INNER JOIN, LEFT OUTER JOIN, RIGHT OUTER JOIN, FULL OUTER JOIN, and CROSS JOIN elements in your SQL statements rather than using the "old-style" joins where all the tables are named together in the FROM clause and all the join conditions are put in the the WHERE clause. ANSI-style joins are easier to understand and less likely to be miswritten and/or misinterpreted than "old-style" joins.

I'd rewrite your query as:

SELECT bc.firstname,
       bc.lastname,
       b.title,
       TO_CHAR(bo.orderdate, 'MM/DD/YYYY') "Order Date",
       p.publishername
FROM BOOK_CUSTOMER bc
INNER JOIN books b
  ON b.BOOK_ID = bc.BOOK_ID
INNER JOIN  book_order bo
  ON bo.BOOK_ID = b.BOOK_ID
INNER JOIN publisher p
  ON p.PUBLISHER_ID = b.PUBLISHER_ID
WHERE p.publishername = 'PRINTING IS US';

Share and enjoy.

You should first create a new environment in conda. From the terminal, type:

$ conda create --name my_env pandas ipython

Python will be installed automatically as part of this installation. After selecting [y] to confirm, you now need to activate this environment:

$ source activate my_env

On Windows I believe it is just:

$ activate my_env

Now, confirm installed packages:

$ conda list

Finally, start python and run your session.

$ ipython

clearInterval is one option:

var interval = setInterval(doStuff, 2000); // 2000 ms = start after 2sec 
function doStuff() {
  alert('this is a 2 second warning');
  clearInterval(interval);
}

My minimal approach

For converting negative number to positive & vice-versa

var num = -24;_x000D_
num -= num*2;_x000D_
console.log(num)_x000D_
// result = 24

All of these are kinds of indices.

primary: must be unique, is an index, is (likely) the physical index, can be only one per table.

unique: as it says. You can't have more than one row with a tuple of this value. Note that since a unique key can be over more than one column, this doesn't necessarily mean that each individual column in the index is unique, but that each combination of values across these columns is unique.

index: if it's not primary or unique, it doesn't constrain values inserted into the table, but it does allow them to be looked up more efficiently.

fulltext: a more specialized form of indexing that allows full text search. Think of it as (essentially) creating an "index" for each "word" in the specified column.

Try to check it's size with sizeof if 0 no elements.

When you send bytes from a buffer with a normal TCP socket, the send function returns the number of bytes of the buffer that were sent. If it is a non-blocking socket or a non-blocking send then the number of bytes sent may be less than the size of the buffer. If it is a blocking socket or blocking send, then the number returned will match the size of the buffer but the call may block. With WebSockets, the data that is passed to the send method is always either sent as a whole "message" or not at all. Also, browser WebSocket implementations do not block on the send call.

But there are more important differences on the receiving side of things. When the receiver does a recv (or read) on a TCP socket, there is no guarantee that the number of bytes returned corresponds to a single send (or write) on the sender side. It might be the same, it may be less (or zero) and it might even be more (in which case bytes from multiple send/writes are received). With WebSockets, the recipient of a message is event-driven (you generally register a message handler routine), and the data in the event is always the entire message that the other side sent.

Note that you can do message based communication using TCP sockets, but you need some extra layer/encapsulation that is adding framing/message boundary data to the messages so that the original messages can be re-assembled from the pieces. In fact, WebSockets is built on normal TCP sockets and uses frame headers that contains the size of each frame and indicate which frames are part of a message. The WebSocket API re-assembles the TCP chunks of data into frames which are assembled into messages before invoking the message event handler once per message.

ifstream inFile;
string name, temp;
int age;

inFile.open("file.txt");

getline(inFile, name, ' '); // use ' ' as separator, default is '\n' (newline). Now name is "John".
getline(inFile, temp, ' '); // Now temp is "Smith"
name.append(1,' ');
name += temp;
inFile >> age; 

cout << name << endl;
cout << age << endl;  

inFile.close();    

mysqli_connect(DB_SERVER,DB_USERNAME,DB_PASSWORD,DB_DATABASE);

use DB_HOST instead of DB_SERVER

Maybe you have a file/directory named test in the directory. If this directory exists, and has no dependencies that are more recent, then this target is not rebuild.

To force rebuild on these kind of not-file-related targets, you should make them phony as follows:

.PHONY: all test clean

Note that you can declare all of your phony targets there.

A phony target is one that is not really the name of a file; rather it is just a name for a recipe to be executed when you make an explicit request.

I use this:

import sqlite3

    db = sqlite3.connect('~/foo.sqlite')
    dbc = db.cursor()
    dbc.execute("PRAGMA table_info('bar')"
    ciao = dbc.fetchall()

    HeaderList=[]
    for i in ciao:
        counter=0
        for a in i:
            counter+=1
            if( counter==2):
                HeaderList.append(a)

print(HeaderList)

Had the issue too. (I'm running ubuntu 18.04)

What I did:

dpkg -l | grep -i nvidia

Then sudo apt-get remove --purge nvidia-381 (and every duplicate version, in my case I had 381, 384 and 387)

Then sudo ubuntu-drivers devices to list what's available

And I choose sudo apt install nvidia-driver-430

After that, nvidia-smi gave the correct output (no need to reboot). But I suppose you can reboot when in doubt.

I also followed this installation to reinstall cuda+cudnn.

/(?![[:alnum:]]|@|-|_|\.)./

Nowadays, if you use a HTML5 form with type=email then you're already by 80% safe since browser engines have their own validator. To complement it, add this regex to your preg_match_all() and negate it:

if (!preg_match_all("/(?![[:alnum:]]|@|-|_|\.)./",$email)) { .. }

Find the regex used by HTML5 forms for validation
https://regex101.com/r/mPEKmy/1

I solved my problem like this

$('#startdatetime-from').datetimepicker({
language: 'en',
format: 'yyyy-MM-dd hh:mm',
defaultDate:new Date()
});

PHP's mail() function does not have support for SMTP. You're going to need to use something like the PEAR Mail package.

Here is a sample SMTP mail script:

<?php
require_once("Mail.php");

$from = "Your Name <[email protected]>";
$to = "Their Name <[email protected]>";
$subject = "Subject";
$body = "Lorem ipsum dolor sit amet, consectetur adipiscing elit...";

$host = "mailserver.blahblah.com";
$username = "smtp_username";
$password = "smtp_password";

$headers = array('From' => $from, 'To' => $to, 'Subject' => $subject);

$smtp = Mail::factory('smtp', array ('host' => $host,
                                     'auth' => true,
                                     'username' => $username,
                                     'password' => $password));

$mail = $smtp->send($to, $headers, $body);

if ( PEAR::isError($mail) ) {
    echo("<p>Error sending mail:<br/>" . $mail->getMessage() . "</p>");
} else {
    echo("<p>Message sent.</p>");
}
?>

Here is something that might help someone looking for this answer: The following uses jquery it searches the whole document and only replaces the text. for example if we had

<a href="/i-am/123/a/overpopulation">overpopulation</a>

and we wanted to add a span with the class overpop around the word overpopulation

<a href="/i-am/123/a/overpopulation"><span class="overpop">overpopulation</span></a>

we would run the following

        $("*:containsIN('overpopulation')").filter(
            function() {
                return $(this).find("*:contains('" + str + "')").length == 0
            }
        ).html(function(_, html) {
            if (html != 'undefined') {
                return html.replace(/(overpopulation)/gi, '<span class="overpop">$1</span>');
            }

        });

the search is case insensitive searches the whole document and only replaces the text portions in this case we are searching for the string 'overpopulation'

    $.extend($.expr[":"], {
        "containsIN": function(elem, i, match, array) {
            return (elem.textContent || elem.innerText || "").toLowerCase().indexOf((match[3] || "").toLowerCase()) >= 0;
        }
    });

Use sys.getsizeof to get the size of an object, in bytes.

>>> from sys import getsizeof
>>> a = 42
>>> getsizeof(a)
12
>>> a = 2**1000
>>> getsizeof(a)
146
>>>

Note that the size and layout of an object is purely implementation-specific. CPython, for example, may use totally different internal data structures than IronPython. So the size of an object may vary from implementation to implementation.

char have any but one character (letters, numbers,...)

char example = 'x';

string can have zero characters or as many as you want

String example = "Here you can have anything";

Initializing a simple array :

<?php $array1=array(10,20,30,40,50); ?>

Initializing array within array :

<?php  $array2=array(6,"santosh","rahul",array("x","y","z")); ?>

Source : Sorce for the code

Here is a solution in Scala:

def subsets[T](s : Set[T]) : Set[Set[T]] = 
  if (s.size == 0) Set(Set()) else { 
    val tailSubsets = subsets(s.tail); 
    tailSubsets ++ tailSubsets.map(_ + s.head) 
} 

you can use tcpdump on the server to check if the client even reaches the server.

  tcpdump -i any tcp port 9100

also make sure your firewall is not blocking incoming connections.

EDIT: you can also write the dump into a file and view it with wireshark on your client if you don't want to read it on the console.

2nd Edit: you can check if you can reach the port via

 nc ip 9100 -z -v

from your local PC.

My solution: I set almost every View as static. Now my app interacts perfect. Being able to call the static methods from everywhere is maybe not a good style, but why to play around with code that doesn't work? I read a lot of questions and their answers here on SO and no solution brought success (for me).

I know it can leak the memory, and waste heap, and my code will not be fit on other projects, but I don't feel scared about this - I tested the app on different devices and conditions, no problems at all, the Android Platform seems to be able handle this. The UI gets refreshed every second and even on a S2 ICS (4.0.3) device the app is able to handle thousands of geo-markers.

with php you can use two redirections. It works same as refresh in some issues.

you can use a page redirect.php and post your last url to it by GET method (for example). then in redirect.php you can change header to location you`ve sent to it by GET method.

like this: your page:

<?php
header("location:redirec.php?ref=".$your_url);
?>

redirect.php:

<?php
$ref_url=$_GET["ref"];
header("location:redirec.php?ref=".$ref_url);
?>

that worked for me good.

Chrome 30> supports video alpha transparency.

http://updates.html5rocks.com/2013/07/Alpha-transparency-in-Chrome-video

Use ldapsearch to authenticate. The opends version might be used as follows:

ldapsearch --hostname hostname --port port \
    --bindDN userdn --bindPassword password \
    --baseDN '' --searchScope base 'objectClass=*' 1.1

Try

h4{ display:block;}

in your css

http://jsfiddle.net/ZrJP6/

For anyone else who runs into this...

Version 1.2.0 of this plugin (current as of this post) doesn't quite work in all cases as documented with Bootstrap 3.0, but it does with a minor workaround.

Specifically, if using an input with icon, the HTML markup is of course slightly different as class names have changed:

<div class="input-group" data-datepicker="true">
    <input name="date" type="text" class="form-control" />
    <span class="input-group-addon"><i class="icon-calendar"></i></span>
</div>

It seems because of this, you need to use a selector that points directly to the input element itself NOT the parent container (which is what the auto generated HTML on the demo page suggests).

$('*[data-datepicker="true"] input[type="text"]').datepicker({
    todayBtn: true,
    orientation: "top left",
    autoclose: true,
    todayHighlight: true
});

Having done this you will probably also want to add a listener for clicking/tapping on the icon so it sets focus on the text input when clicked (which is the behaviour when using this plugin with TB 2.x by default).

$(document).on('touch click', '*[data-datepicker="true"] .input-group-addon', function(e){
    $('input[type="text"]', $(this).parent()).focus();
});

NB: I just use a data-datepicker boolean attribute because the class name 'datepicker' is reserved by the plugin and I already use 'date' for styling elements.

yes you can (for version 2)

load like this inside your controller

 $this->load->library('../controllers/whathever');

and call the following method:

$this->whathever->functioname();

PLEASE NOTE: The documentation says:

filter is a JavaScript extension to the ECMA-262 standard; as such it may not be present in other implementations of the standard. You can work around this by inserting the following code at the beginning of your scripts, allowing use of filter in ECMA-262 implementations which do not natively support it. This algorithm is exactly the one specified in ECMA-262, 5th edition, assuming that fn.call evaluates to the original value of Function.prototype.call, and that Array.prototype.push has its original value.

So, to avoid some heartache, you may have to add this code to your script At the beginning.

if (!Array.prototype.filter) {
  Array.prototype.filter = function (fn, context) {
    var i,
        value,
        result = [],
        length;
        if (!this || typeof fn !== 'function' || (fn instanceof RegExp)) {
          throw new TypeError();
        }
        length = this.length;
        for (i = 0; i < length; i++) {
          if (this.hasOwnProperty(i)) {
            value = this[i];
            if (fn.call(context, value, i, this)) {
              result.push(value);
            }
          }
        }
    return result;
  };
}

    _, err := os.Stat(file)
    if err == nil {
        log.Printf("file %s exists", file)
    } else if os.IsNotExist(err) {
        log.Printf("file %s not exists", file)
    } else {
        log.Printf("file %s stat error: %v", file, err)
    }

Instead of testing for an Array, just convert whatever you get into a one-level Array, so your code only needs to handle the one case.

t = [*something]     # or...
t = Array(something) # or...
def f *x
    ...
end

Ruby has various ways to harmonize an API which can take an object or an Array of objects, so, taking a guess at why you want to know if something is an Array, I have a suggestion.

The splat operator contains lots of magic you can look up, or you can just call Array(something) which will add an Array wrapper if needed. It's similar to [*something] in this one case.

def f x
  p Array(x).inspect
  p [*x].inspect
end
f 1         # => "[1]"
f [1]       # => "[1]"
f [1,2]     # => "[1, 2]"

Or, you could use the splat in the parameter declaration and then .flatten, giving you a different sort of collector. (For that matter, you could call .flatten above, too.)

def f *x
  p x.flatten.inspect
end         # => nil
f 1         # => "[1]"
f 1,2       # => "[1, 2]"
f [1]       # => "[1]"
f [1,2]     # => "[1, 2]"
f [1,2],3,4 # => "[1, 2, 3, 4]"

And, thanks gregschlom, it's sometimes faster to just use Array(x) because when it's already an Array it doesn't need to create a new object.

Add this extension in your code and change image color in storyboard itself.

Swift 4 & 5:

extension UIImageView {
    @IBInspectable
    var changeColor: UIColor? {
        get {
            let color = UIColor(cgColor: layer.borderColor!);
            return color
        }
        set {
            let templateImage = self.image?.withRenderingMode(.alwaysTemplate)
            self.image = templateImage
            self.tintColor = newValue
        }
    }
}

Storyboard Preview:

Redis supports 5 data types. You need to know what type of value that a key maps to, as for each data type, the command to retrieve it is different.

Here are the commands to retrieve key value:

• if value is of type string -> GET <key>
• if value is of type hash -> HGETALL <key>
• if value is of type lists -> lrange <key> <start> <end>
• if value is of type sets -> smembers <key>
• if value is of type sorted sets -> ZRANGEBYSCORE <key> <min> <max>

Use the TYPE command to check the type of value a key is mapping to:

• type <key>

When i copied the date format for timestamp and used that for date, it did not work. But changing the date format to this (DD-MON-YY HH12:MI:SS AM) worked for me.

The change has to be made in Tools->Preferences-> search for NLS

Follow the instructions at https://gist.github.com/application2000/73fd6f4bf1be6600a2cf9f56315a2d91 to set up the gcc version you need - gcc 5 or gcc 6 - on Ubuntu 14.04. The instructions include configuring update-alternatives to allow you to switch between versions as you need to.

Maybe this example listed here can help you out. Statement from the author

about 24 lines of code to encrypt, 23 to decrypt

Due to the fact that the link in the original posting is dead - here the needed code parts (c&p without any change to the original source)

  /*
  Copyright (c) 2010 <a href="http://www.gutgames.com">James Craig</a>
  
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
  
  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  THE SOFTWARE.*/
   
  #region Usings
  using System;
  using System.IO;
  using System.Security.Cryptography;
  using System.Text;
  #endregion
   
  namespace Utilities.Encryption
  {
      /// <summary>
      /// Utility class that handles encryption
      /// </summary>
      public static class AESEncryption
      {
          #region Static Functions
   
          /// <summary>
          /// Encrypts a string
          /// </summary>
          /// <param name="PlainText">Text to be encrypted</param>
          /// <param name="Password">Password to encrypt with</param>
          /// <param name="Salt">Salt to encrypt with</param>
          /// <param name="HashAlgorithm">Can be either SHA1 or MD5</param>
          /// <param name="PasswordIterations">Number of iterations to do</param>
          /// <param name="InitialVector">Needs to be 16 ASCII characters long</param>
          /// <param name="KeySize">Can be 128, 192, or 256</param>
          /// <returns>An encrypted string</returns>
          public static string Encrypt(string PlainText, string Password,
              string Salt = "Kosher", string HashAlgorithm = "SHA1",
              int PasswordIterations = 2, string InitialVector = "OFRna73m*aze01xY",
              int KeySize = 256)
          {
              if (string.IsNullOrEmpty(PlainText))
                  return "";
              byte[] InitialVectorBytes = Encoding.ASCII.GetBytes(InitialVector);
              byte[] SaltValueBytes = Encoding.ASCII.GetBytes(Salt);
              byte[] PlainTextBytes = Encoding.UTF8.GetBytes(PlainText);
              PasswordDeriveBytes DerivedPassword = new PasswordDeriveBytes(Password, SaltValueBytes, HashAlgorithm, PasswordIterations);
              byte[] KeyBytes = DerivedPassword.GetBytes(KeySize / 8);
              RijndaelManaged SymmetricKey = new RijndaelManaged();
              SymmetricKey.Mode = CipherMode.CBC;
              byte[] CipherTextBytes = null;
              using (ICryptoTransform Encryptor = SymmetricKey.CreateEncryptor(KeyBytes, InitialVectorBytes))
              {
                  using (MemoryStream MemStream = new MemoryStream())
                  {
                      using (CryptoStream CryptoStream = new CryptoStream(MemStream, Encryptor, CryptoStreamMode.Write))
                      {
                          CryptoStream.Write(PlainTextBytes, 0, PlainTextBytes.Length);
                          CryptoStream.FlushFinalBlock();
                          CipherTextBytes = MemStream.ToArray();
                          MemStream.Close();
                          CryptoStream.Close();
                      }
                  }
              }
              SymmetricKey.Clear();
              return Convert.ToBase64String(CipherTextBytes);
          }
   
          /// <summary>
          /// Decrypts a string
          /// </summary>
          /// <param name="CipherText">Text to be decrypted</param>
          /// <param name="Password">Password to decrypt with</param>
          /// <param name="Salt">Salt to decrypt with</param>
          /// <param name="HashAlgorithm">Can be either SHA1 or MD5</param>
          /// <param name="PasswordIterations">Number of iterations to do</param>
          /// <param name="InitialVector">Needs to be 16 ASCII characters long</param>
          /// <param name="KeySize">Can be 128, 192, or 256</param>
          /// <returns>A decrypted string</returns>
          public static string Decrypt(string CipherText, string Password,
              string Salt = "Kosher", string HashAlgorithm = "SHA1",
              int PasswordIterations = 2, string InitialVector = "OFRna73m*aze01xY",
              int KeySize = 256)
          {
              if (string.IsNullOrEmpty(CipherText))
                  return "";
              byte[] InitialVectorBytes = Encoding.ASCII.GetBytes(InitialVector);
              byte[] SaltValueBytes = Encoding.ASCII.GetBytes(Salt);
              byte[] CipherTextBytes = Convert.FromBase64String(CipherText);
              PasswordDeriveBytes DerivedPassword = new PasswordDeriveBytes(Password, SaltValueBytes, HashAlgorithm, PasswordIterations);
              byte[] KeyBytes = DerivedPassword.GetBytes(KeySize / 8);
              RijndaelManaged SymmetricKey = new RijndaelManaged();
              SymmetricKey.Mode = CipherMode.CBC;
              byte[] PlainTextBytes = new byte[CipherTextBytes.Length];
              int ByteCount = 0;
              using (ICryptoTransform Decryptor = SymmetricKey.CreateDecryptor(KeyBytes, InitialVectorBytes))
              {
                  using (MemoryStream MemStream = new MemoryStream(CipherTextBytes))
                  {
                      using (CryptoStream CryptoStream = new CryptoStream(MemStream, Decryptor, CryptoStreamMode.Read))
                      {
   
                          ByteCount = CryptoStream.Read(PlainTextBytes, 0, PlainTextBytes.Length);
                          MemStream.Close();
                          CryptoStream.Close();
                      }
                  }
              }
              SymmetricKey.Clear();
              return Encoding.UTF8.GetString(PlainTextBytes, 0, ByteCount);
          }
   
          #endregion
      }
  }

Next to the performance issues, there is another one very important which I'd call code maintainability and extendibility.

If a T is POD and you start preferring initialization list, then if one time T will change to a non-POD type, you won't need to change anything around initialization to avoid unnecessary constructor calls because it is already optimised.

If type T does have default constructor and one or more user-defined constructors and one time you decide to remove or hide the default one, then if initialization list was used, you don't need to update code if your user-defined constructors because they are already correctly implemented.

Same with const members or reference members, let's say initially T is defined as follows:

struct T
{
    T() { a = 5; }
private:
    int a;
};

Next, you decide to qualify a as const, if you would use initialization list from the beginning, then this was a single line change, but having the T defined as above, it also requires to dig the constructor definition to remove assignment:

struct T
{
    T() : a(5) {} // 2. that requires changes here too
private:
    const int a; // 1. one line change
};

It's not a secret that maintenance is far easier and less error-prone if code was written not by a "code monkey" but by an engineer who makes decisions based on deeper consideration about what he is doing.

Select all text afected by this issue:

Window -> Character, click the icon next to hide the Character Window, Middle Western Features and select Left-to-right character direction.

window.history.pushState({urlPath:'/page1'},"",'/page1')

Only works after page is loaded, and when you will click on refresh it doesn't mean that there is any real URL.

What you should do here is knowing to which URL you are getting redirected when you reload this page. And on that page you can get the conditions by getting the current URL and making all of your conditions.

If you know the UTC offset then you can pass it and get the time using the following function:

function calcTime(city, offset) {
    // create Date object for current location
    var d = new Date();

    // convert to msec
    // subtract local time zone offset
    // get UTC time in msec
    var utc = d.getTime() + (d.getTimezoneOffset() * 60000);

    // create new Date object for different city
    // using supplied offset
    var nd = new Date(utc + (3600000*offset));

    // return time as a string
    return "The local time for city"+ city +" is "+ nd.toLocaleString();
}

alert(calcTime('Bombay', '+5.5'));

Taken from: Convert Local Time to Another

Another alternative would be JasperReports: JasperReports Library. It uses iText itself and is more than a PDF library you asked for, but if it fits your needs I'd go for it.

Simply put, it allows you to design reports that can be filled during runtime. If you use a custom datasource, you might be able to integrate JasperReports easily into the existing system. It would save you the whole layouting troubles, e.g. when invoices span over more sites where each side should have a footer and so on.

req.query will return a JS object after the query string is parsed.

/user?name=tom&age=55 - req.query would yield {name:"tom", age: "55"}

req.params will return parameters in the matched route. If your route is /user/:id and you make a request to /user/5 - req.params would yield {id: "5"}

req.param is a function that peels parameters out of the request. All of this can be found here.

UPDATE

If the verb is a POST and you are using bodyParser, then you should be able to get the form body in you function with req.body. That will be the parsed JS version of the POSTed form.

There were just a couple of minor amendments required:

ans=True
while ans:
    print ("""
    1.Add a Student
    2.Delete a Student
    3.Look Up Student Record
    4.Exit/Quit
    """)
    ans=raw_input("What would you like to do? ") 
    if ans=="1": 
      print("\n Student Added") 
    elif ans=="2":
      print("\n Student Deleted") 
    elif ans=="3":
      print("\n Student Record Found") 
    elif ans=="4":
      print("\n Goodbye") 
    elif ans !="":
      print("\n Not Valid Choice Try again") 

I have changed the four quotes to three (this is the number required for multiline quotes), added a closing bracket after "What would you like to do? " and changed input to raw_input.

The folder is part of the URL you set when you create request: "ftp://www.contoso.com/test.htm". If you use "ftp://www.contoso.com/wibble/test.htm" then the file will be uploaded to a folder named wibble.

You may need to first use a request with Method = WebRequestMethods.Ftp.MakeDirectory to make the wibble folder if it doesn't already exist.

• System properties are set on the Java command line using the -Dpropertyname=value syntax. They can also be added at runtime using System.setProperty(String key, String value) or via the various System.getProperties().load() methods.
  To get a specific system property you can use System.getProperty(String key) or System.getProperty(String key, String def).

• Environment variables are set in the OS, e.g. in Linux export HOME=/Users/myusername or on Windows SET WINDIR=C:\Windows etc, and, unlike properties, may not be set at runtime.
  To get a specific environment variable you can use System.getenv(String name).

If the class does not have toString() method, then you can use ToStringBuilder class from org.apache.commons:commons-lang3

pom.xml:

<dependency>
  <groupId>org.apache.commons</groupId>
  <artifactId>commons-lang3</artifactId>
  <version>3.10</version>
</dependency>

code:

ToStringBuilder.reflectionToString(yourObject)

I am also facing the same problem, but I resolve.

npm install node-sass  

Above command work for me. As per your synario you can use the blow command.

Try 1

 npm install node-sass

Try 2

remove node_modules folder and run npm install

Try 3

npm rebuild node-sass

Try 4

npm install --save node-sass

For your ref you can go through this github link

So with the code you have provided.

var bytes = Convert.FromBase64String(resizeImage.Content);
using (var imageFile = new FileStream(filePath, FileMode.Create))
{
    imageFile.Write(bytes ,0, bytes.Length);
    imageFile.Flush();
}

jQuery is just JavaScript, don't think very differently about it! Like you would do in 'normal' JS, you add an event listener to the buttons and change the action attribute of the form. In jQuery this looks something like:

$('#button1').click(function(){
   $('#your_form').attr('action', 'http://uri-for-button1.com');
});

This code is the same for the second button, you only need to change the id of your button and the URI where the form should be submitted to.

Removing a remote

Use the git remote rm command to remove a remote URL from your repository.

    $ git remote -v
    # View current remotes
    > origin  https://github.com/OWNER/REPOSITORY.git (fetch)
    > origin  https://github.com/OWNER/REPOSITORY.git (push)
    > destination  https://github.com/FORKER/REPOSITORY.git (fetch)
    > destination  https://github.com/FORKER/REPOSITORY.git (push)

    $ git remote rm destination
    # Remove remote
    $ git remote -v
    # Verify it's gone
    > origin  https://github.com/OWNER/REPOSITORY.git (fetch)
    > origin  https://github.com/OWNER/REPOSITORY.git (push)

I think it is better to change default port of Skype.

Open skype. Go to Tools, Options, Connections, change the port.

My typescript solution, maybe it helps you:

type ITreeItem<T> = T & {
    children: ITreeItem<T>[],
};

type IItemKey = string | number;

function createTree<T>(
    flatList: T[],
    idKey: IItemKey,
    parentKey: IItemKey,
): ITreeItem<T>[] {
    const tree: ITreeItem<T>[] = [];

    // hash table.
    const mappedArr = {};
    flatList.forEach(el => {
        const elId: IItemKey = el[idKey];

        mappedArr[elId] = el;
        mappedArr[elId].children = [];
    });

    // also you can use Object.values(mappedArr).forEach(...
    // but if you have element which was nested more than one time
    // you should iterate flatList again:
    flatList.forEach((elem: ITreeItem<T>) => {
        const mappedElem = mappedArr[elem[idKey]];

        if (elem[parentKey]) {
            mappedArr[elem[parentKey]].children.push(elem);
        } else {
            tree.push(mappedElem);
        }
    });

    return tree;
}

Example of usage:

createTree(yourListData, 'id', 'parentId');

Sven Marnach's answer is pretty much it, but has one generality issue... It will fail if the list being printed doesn't just contain strings.

So, the more general answer to "How to print out a list with elements separated by newlines"...

print '\n'.join([ str(myelement) for myelement in mylist ])

Then again, the print function approach JBernardo points out is superior. If you can, using the print function instead of the print statement is almost always a good idea.

Try running the command brew doctor and let us know what sort of output you get

edit: And to answer the title question, this is from their FAQ :

Homebrew doesn’t write files outside its prefix. So generally you can just rm -rf the folder you installed it in.

So following that up with a clean re-install (following their latest recommended steps) should be your best bet.

Another way to look at this would be to use mongoDB You can store your JSON in mongo and then query it via the mongodb query syntax.

You'll need to compile it using:

g++ inputfile.cpp -o outputbinary

The file you are referring has a missing #include <cstdlib> directive, if you also include that in your file, everything shall compile fine.

How I can get rid of it so it doesnt display it?

People here are trying to tell you that it's unprofessional (and it is), but in your case you should simply add following to the start of your application:

 error_reporting(E_ERROR|E_WARNING);

This will disable E_NOTICE reporting. E_NOTICES are not errors, but notices, as the name says. You'd better check this stuff out and proof that undefined variables don't lead to errors. But the common case is that they are just informal, and perfectly normal for handling form input with PHP.

Also, next time Google the error message first.

Use the PackageResourceViewer plugin installed via Package Control (as mentioned by MattDMo). This allows you to override the compressed resources by simply opening it in Sublime Text and saving the file. It automatically saves only the edited resources to %APPDATA%/Roaming/Sublime Text 3/Packages/ or ~/.config/sublime-text-3/Packages/.

Specific to the op, once the plugin is installed, execute the PackageResourceViewer: Open Resource command. Then select JavaScript followed by JavaScript.tmLanguage. This will open an xml file in the editor. You can edit any of the language definitions and save the file. This will write an override copy of the JavaScript.tmLanguage file in the user directory.

The same method can be used to edit the language definition of any language in the system.

You mention that you are doing this because IE doesn't support SVG.

The good news is that IE does support vector graphics. Okay, so it's in the form of a language called VML which only IE supports, rather than SVG, but it is there, and you can use it.

Google Maps, among others, will detect the browser capabilities to determine whether to serve SVG or VML.

Then there's the Raphael library, which is a Javascript browswer-based graphics library, which supports either SVG or VML, again depending on the browser.

Another one which may help: SVGWeb.

All of which means that you can support your IE users without having to resort to bitmap graphics.

See also the top answer to this question, for example: XSL Transform SVG to VML

You can use bit.ly api to create facebook short urls find the documentation here http://api.bitly.com

DropDownList1.Items.FindByValue(stringValue).Selected = true; 

should work.

This solution solves both issues network error and the service behind SQL server

I answered a similar question here, you need to stat the other open Run type-> services.msc - under services -> sort by stopped you will see a bunch of stopped SQL services Right click and start

To begin - there are 4 issues that could be causing the common LocalDb SqlExpress Sql Server connectivity errors SQL Network Interfaces, error: 50 - Local Database Runtime error occurred, before you begin you need to rename the v11 or v12 to (localdb)\mssqllocaldb

Troubleshooting Steps

1. You do not have the services running run this cmd, net start MSSQLSERVER or net start MSSQL$ instancename
2. You do not have the firewall ports here configured
3. Your install has and issue/corrupt (the steps below help give you a nice clean start)
4. You did not rename the V11 or 12 to mssqllocaldb/SqlServer

I found that the simplest is to do the below - I have attached the pics and steps for help.

Resolution Steps:

First verify which instance you have installed, you can do this by checking the registry and by running cmd

1. cmd> Sqllocaldb.exe i
2. cmd> Sqllocaldb.exe s "whicheverVersionYouWantFromListBefore" if this step fails, you can delete with option d cmd> Sqllocaldb.exe d "someDb"
3. cmd> Sqllocaldb.exe c "createSomeNewDbIfyouWantDb"
4. cmd> Sqllocaldb.exe start "createSomeNewDbIfyouWantDb"

tl;dr

A generator expression is probably the most performant and simple solution to your problem:

l = [(1,"juca"),(22,"james"),(53,"xuxa"),(44,"delicia")]

result = next((i for i, v in enumerate(l) if v[0] == 53), None)
# 2

Explanation

There are several answers that provide a simple solution to this question with list comprehensions. While these answers are perfectly correct, they are not optimal. Depending on your use case, there may be significant benefits to making a few simple modifications.

The main problem I see with using a list comprehension for this use case is that the entire list will be processed, although you only want to find 1 element.

Python provides a simple construct which is ideal here. It is called the generator expression. Here is an example:

# Our input list, same as before
l = [(1,"juca"),(22,"james"),(53,"xuxa"),(44,"delicia")]

# Call next on our generator expression.
next((i for i, v in enumerate(l) if v[0] == 53), None)

We can expect this method to perform basically the same as list comprehensions in our trivial example, but what if we're working with a larger data set? That's where the advantage of using the generator method comes into play. Rather than constructing a new list, we'll use your existing list as our iterable, and use next() to get the first item from our generator.

Lets look at how these methods perform differently on some larger data sets. These are large lists, made of 10000000 + 1 elements, with our target at the beginning (best) or end (worst). We can verify that both of these lists will perform equally using the following list comprehension:

List comprehensions

"Worst case"

worst_case = ([(False, 'F')] * 10000000) + [(True, 'T')]
print [i for i, v in enumerate(worst_case) if v[0] is True]

# [10000000]
#          2 function calls in 3.885 seconds
#
#    Ordered by: standard name
#
#    ncalls  tottime  percall  cumtime  percall filename:lineno(function)
#         1    3.885    3.885    3.885    3.885 so_lc.py:1(<module>)
#         1    0.000    0.000    0.000    0.000 {method 'disable' of '_lsprof.Profiler' objects}

"Best case"

best_case = [(True, 'T')] + ([(False, 'F')] * 10000000)
print [i for i, v in enumerate(best_case) if v[0] is True]

# [0]
#          2 function calls in 3.864 seconds
#
#    Ordered by: standard name
#
#    ncalls  tottime  percall  cumtime  percall filename:lineno(function)
#         1    3.864    3.864    3.864    3.864 so_lc.py:1(<module>)
#         1    0.000    0.000    0.000    0.000 {method 'disable' of '_lsprof.Profiler' objects}

Generator expressions

Here's my hypothesis for generators: we'll see that generators will significantly perform better in the best case, but similarly in the worst case. This performance gain is mostly due to the fact that the generator is evaluated lazily, meaning it will only compute what is required to yield a value.

Worst case

# 10000000
#          5 function calls in 1.733 seconds
#
#    Ordered by: standard name
#
#    ncalls  tottime  percall  cumtime  percall filename:lineno(function)
#         2    1.455    0.727    1.455    0.727 so_lc.py:10(<genexpr>)
#         1    0.278    0.278    1.733    1.733 so_lc.py:9(<module>)
#         1    0.000    0.000    0.000    0.000 {method 'disable' of '_lsprof.Profiler' objects}
#         1    0.000    0.000    1.455    1.455 {next}

Best case

best_case  = [(True, 'T')] + ([(False, 'F')] * 10000000)
print next((i for i, v in enumerate(best_case) if v[0] == True), None)

# 0
#          5 function calls in 0.316 seconds
#
#    Ordered by: standard name
#
#    ncalls  tottime  percall  cumtime  percall filename:lineno(function)
#         1    0.316    0.316    0.316    0.316 so_lc.py:6(<module>)
#         2    0.000    0.000    0.000    0.000 so_lc.py:7(<genexpr>)
#         1    0.000    0.000    0.000    0.000 {method 'disable' of '_lsprof.Profiler' objects}
#         1    0.000    0.000    0.000    0.000 {next}

WHAT?! The best case blows away the list comprehensions, but I wasn't expecting the our worst case to outperform the list comprehensions to such an extent. How is that? Frankly, I could only speculate without further research.

Take all of this with a grain of salt, I have not run any robust profiling here, just some very basic testing. This should be sufficient to appreciate that a generator expression is more performant for this type of list searching.

Note that this is all basic, built-in python. We don't need to import anything or use any libraries.

I first saw this technique for searching in the Udacity cs212 course with Peter Norvig.

I think you're looking for;

  string[] skus = myLines.Select(x => x.Sku).ToArray();

However, if you're going to iterate over the sku's in subsequent code I recommend not using the ToArray() bit as it forces the queries execution prematurely and makes the applications performance worse. Instead you can just do;

  var skus = myLines.Select(x => x.Sku); // produce IEnumerable<string>

  foreach (string sku in skus) // forces execution of the query

No need jquery for this

I used this to center Div element. Css Style,

.black_overlay{
    display: none;
    position: absolute;
    top: 0%;
    left: 0%;
    width: 100%;
    height: 100%;
    background-color: black;
    z-index:1001;
    -moz-opacity: 0.8;
    opacity:.80;
    filter: alpha(opacity=80);
}

.white_content {
    display: none;
    position: absolute;
    top: 25%;
    left: 25%;
    width: 50%;
    height: 50%;
    padding: 16px;
    border: 16px solid orange;
    background-color: white;
    z-index:1002;
    overflow: auto;
}

Open element

$(document).ready(function(){
    $(".open").click(function(e){
      $(".black_overlay").fadeIn(200);
    });

});

You can get the first of the month, by calculating the last_day of the month before and add one day. It is awkward, but I think it is better than formatting a date as string and use that for calculation.

select 
  *
from
  yourtable t
where
  /* Greater or equal to the start of last month */
  t.date >= DATE_ADD(LAST_DAY(DATE_SUB(NOW(), INTERVAL 2 MONTH)), INTERVAL 1 DAY) and
  /* Smaller or equal than one month ago */
  t.date <= DATE_SUB(NOW(), INTERVAL 1 MONTH)

If you can use a Database project in Visual Studio, you can make your changes in the project and use schema compare to synchronize the changes to your database.

This way, dropping and recreating the dependent objects is handled by the change script.