"Baker"

That's because the first one changes your string-reference to point to "Baker". Changing the reference is possible because you passed it via the ref keyword (=> a reference to a reference to a string). The Second call gets a copy of the reference to the string.

string looks some kind of special at first. But string is just a reference class and if you define

string s = "Able";

then s is a reference to a string class that contains the text "Able"! Another assignment to the same variable via

s = "Baker";

does not change the original string but just creates a new instance and let s point to that instance!

You can try it with the following little code example:

string s = "Able";
string s2 = s;
s = "Baker";
Console.WriteLine(s2);

What do you expect? What you will get is still "Able" because you just set the reference in s to another instance while s2 points to the original instance.

EDIT: string is also immutable which means there is simply no method or property that modifies an existing string instance (you can try to find one in the docs but you won't fins any :-) ). All string manipulation methods return a new string instance! (That's why you often get a better performance when using the StringBuilder class)

Note: This code is untested

Define a record for your refCursor return type, call it rec. For example:

TYPE MyRec IS RECORD (col1 VARCHAR2(10), col2 VARCHAR2(20), ...);  --define the record
rec MyRec;        -- instantiate the record

Once you have the refcursor returned from your procedure, you can add the following code where your comments are now:

LOOP
  FETCH refCursor INTO rec;
  EXIT WHEN refCursor%NOTFOUND;
  dbms_output.put_line(rec.col1||','||rec.col2||','||...);
END LOOP;

Since TestRef is a class (which are reference objects), you can change the contents inside t without passing it as a ref. However, if you pass t as a ref, TestRef can change what the original t refers to. i.e. make it point to a different object.

• A leading slash tells the browser to start at the root directory.
• If you don't have the leading slash, you're referencing from the current directory.
• If you add two dots before the leading slash, it means you're referencing the parent of the current directory.

Take the following folder structure

notice:

• the ROOT checkmark is green,
• the second checkmark is orange,
• the third checkmark is purple,
• the forth checkmark is yellow

Now in the index.html.en file you'll want to put the following markup

<p>
    <span>src="check_mark.png"</span>
    <img src="check_mark.png" />
    <span>I'm purple because I'm referenced from this current directory</span>
</p>

<p>
    <span>src="/check_mark.png"</span>
    <img src="/check_mark.png" />
    <span>I'm green because I'm referenced from the ROOT directory</span>
</p>

<p>
    <span>src="subfolder/check_mark.png"</span>
    <img src="subfolder/check_mark.png" />
    <span>I'm yellow because I'm referenced from the child of this current directory</span>
</p>

<p>
    <span>src="/subfolder/check_mark.png"</span>
    <img src="/subfolder/check_mark.png" />
    <span>I'm orange because I'm referenced from the child of the ROOT directory</span>
</p>

<p>
    <span>src="../subfolder/check_mark.png"</span>
    <img src="../subfolder/check_mark.png" />
    <span>I'm purple because I'm referenced from the parent of this current directory</span>
</p>

<p>
    <span>src="subfolder/subfolder/check_mark.png"</span>
    <img src="subfolder/subfolder/check_mark.png" />
    <span>I'm [broken] because there is no subfolder two children down from this current directory</span>
</p>

<p>
    <span>src="/subfolder/subfolder/check_mark.png"</span>
    <img src="/subfolder/subfolder/check_mark.png" />
    <span>I'm purple because I'm referenced two children down from the ROOT directory</span>
</p>

Now if you load up the index.html.en file located in the second subfolder
http://example.com/subfolder/subfolder/

This will be your output

I'm sure Scott's solution worked at one point,

But it's a good argument for not using reflection to peek at private apis. It's broken now.

I was able to set out parameters using a delegate

      delegate void MockOutDelegate(string s, out int value);

    public void SomeMethod()
    {
        ....

         int value;
         myMock.Setup(x => x.TryDoSomething(It.IsAny<string>(), out value))
            .Callback(new MockOutDelegate((string s, out int output) => output = userId))
            .Returns(true);
    }

The complete syntax depends on the database engine you're working with:

For SQL Server:

CASE case-expression
    WHEN when-expression-1 THEN value-1
  [ WHEN when-expression-n THEN value-n ... ]
  [ ELSE else-value ]
END

or:

CASE
    WHEN boolean-when-expression-1 THEN value-1
  [ WHEN boolean-when-expression-n THEN value-n ... ]
  [ ELSE else-value ]
END

expressions, etc:

case-expression    - something that produces a value
when-expression-x  - something that is compared against the case-expression
value-1            - the result of the CASE statement if:
                         the when-expression == case-expression
                      OR the boolean-when-expression == TRUE
boolean-when-exp.. - something that produces a TRUE/FALSE answer

Link: CASE (Transact-SQL)

Also note that the ordering of the WHEN statements is important. You can easily write multiple WHEN clauses that overlap, and the first one that matches is used.

Note: If no ELSE clause is specified, and no matching WHEN-condition is found, the value of the CASE expression will be NULL.

If you are working in node.js with lusca try also this:

$.ajax({
url: "http://test.com",
type:"post"
headers: {'X-CSRF-Token': $('meta[name="csrf-token"]').attr('content')}
})

I should tell you the basic steps and rest depends upon your own effort. You need to perform following steps.

• Create a connection string.
• Create a SQL connection
• Create SQL command
• Create SQL data adapter
• fill your dataset.

Do not forget to open and close connection. follow this link for more under standing.

Example - sending some data encoded as JSON as a POST data:

import json
import urllib2
data = json.dumps([1, 2, 3])
f = urllib2.urlopen(url, data)
response = f.read()
f.close()

Without an access modifier, a class member is accessible throughout the package in which it's declared. You can learn more from the Java Language Specification, §6.6.

Members of an interface are always publicly accessible, whether explicitly declared or not.

In Sequelize version 5 you might also can use this way (full use Operator Sequelize) :

var condition = 
{ 
  [Op.or]: [ 
   { 
     LastName: {
      [Op.eq]: "Doe"
      },
    },
   { 
     FirstName: {
      [Op.or]: ["John", "Jane"]
      }
   },
   {
      Age:{
        [Op.gt]: 18
      }
    }
 ]
}

And then, you must include this :

const Op = require('Sequelize').Op

and pass it in :

Student.findAll(condition)
.success(function(students){ 
//
})

It could beautifully generate SQL like this :

"SELECT * FROM Student WHERE LastName='Doe' OR FirstName in ("John","Jane") OR Age>18"

You get this error, despite everything being in line, because of a conflict caused by one of the packages that are currently loaded in your R environment.

So, to solve this issue, detach all the packages that are not needed from the R environment. For example, when I had the same issue, I did the following:

detach(package:neuralnet)

bottom line: detach all the libraries no longer needed for execution... and the problem will be solved.

Answer marked '905' looks good but does not work.

Following worked for me. Any Primary Key, Unique Key, or Default constraints CAN NOT be disabled. In fact, if 'sp_helpconstraint '' shows 'n/a' in status_enabled - Means it can NOT be enabled/disabled.

-- To generate script to DISABLE

select 'ALTER TABLE ' + object_name(id) + ' NOCHECK CONSTRAINT [' + object_name(constid) + ']'
from sys.sysconstraints 
where status & 0x4813 = 0x813 order by object_name(id)

-- To generate script to ENABLE

select 'ALTER TABLE ' + object_name(id) + ' CHECK CONSTRAINT [' + object_name(constid) + ']'
from sys.sysconstraints 
where status & 0x4813 = 0x813 order by object_name(id)

When you import a module (or a member of it) for the first time, the code inside the module is executed sequentially like any other code; e.g., it is not treated any differently that the body of a function. An import is just a command like any other (assignment, a function call, def, class). Assuming your imports occur at the top of the script, then here's what's happening:

• When you try to import World from world, the world script gets executed.
• The world script imports Field, which causes the entities.field script to get executed.
• This process continues until you reach the entities.post script because you tried to import Post
• The entities.post script causes physics module to be executed because it tries to import PostBody
• Finally, physics tries to import Post from entities.post
• I'm not sure whether the entities.post module exists in memory yet, but it really doesn't matter. Either the module is not in memory, or the module doesn't yet have a Post member because it hasn't finished executing to define Post
• Either way, an error occurs because Post is not there to be imported

So no, it's not "working further up in the call stack". This is a stack trace of where the error occurred, which means it errored out trying to import Post in that class. You shouldn't use circular imports. At best, it has negligible benefit (typically, no benefit), and it causes problems like this. It burdens any developer maintaining it, forcing them to walk on egg shells to avoid breaking it. Refactor your module organization.

I had a similar problem with 'org.codehaus.mojo'-'jaxws-maven-plugin': could not resolve dependencies. Fortunately, I was able to do a Project > Clean in Eclipse, which resolved the issue.

An alternative is to use the maven shade plugin to build an uber-jar.

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-shade-plugin</artifactId>
    <version> Your Version Here </version>
    <configuration>
            <!-- put your configurations here -->
    </configuration>
    <executions>
            <execution>
                    <phase>package</phase>
                    <goals>
                            <goal>shade</goal>
                    </goals>
            </execution>
    </executions>
</plugin>

An SMS Push is a message to tell the terminal to initiate the session. This happens because you can't initiate an IP session simply because you don't know the IP Adress of the mobile terminal. Mostly used to send a few lines of data to end recipient, to the effect of sending information, or reminding of events.

WAP Push is an SMS within the header of which is included a link to a WAP address. On receiving a WAP Push, the compatible mobile handset automatically gives the user the option to access the WAP content on his handset. The WAP Push directs the end-user to a WAP address where content is stored ready for viewing or downloading onto the handset. This wap address may be a page or a WAP site.

The user may “take action” by using a developer-defined soft-key to immediately activate an application to accomplish a specific task, such as downloading a picture, making a purchase, or responding to a marketing offer.

You can use ternary expression. There are two ways to do this:

<div ng-style="myVariable > 100 ? {'color': 'red'} : {'color': 'blue'}"></div>

or...

<div ng-style="{'color': (myVariable > 100) ? 'red' : 'blue' }"></div>

I have to agree with the comments above, that you can't call a file, but you could load a JS file like this, I'm unsure if it answers your question but it may help... oh and I've used a link instead of a button in my example...

<a href='linkhref.html' id='mylink'>click me</a>

<script type="text/javascript">

var myLink = document.getElementById('mylink');

myLink.onclick = function(){

    var script = document.createElement("script");
    script.type = "text/javascript";
    script.src = "Public/Scripts/filename.js."; 
    document.getElementsByTagName("head")[0].appendChild(script);
    return false;

}


</script>

I am not expert, but this may work as well,

dat <- dat[2:nrow(dat), ]

I know this is a bit of an old thread but with pandas 19.02, you can do:

df.select_dtypes(include=['float64']).apply(your_function)
df.select_dtypes(exclude=['string','object']).apply(your_other_function)

http://pandas.pydata.org/pandas-docs/version/0.19.2/generated/pandas.DataFrame.select_dtypes.html

Found an alternative at Child elements with margins within DIVs You can also add:

.parent { overflow: auto; }

or:

.parent { overflow: hidden; }

This prevents the margins to collapse. Border and padding do the same. Hence, you can also use the following to prevent a top-margin collapse:

.parent {
    padding-top: 1px;
    margin-top: -1px;
}

Update by popular request: The whole point of collapsing margins is handling textual content. For example:

h1, h2, p, ul {_x000D_
  margin-top: 1em;_x000D_
  margin-bottom: 1em;_x000D_
}

<h1>Title!</h1>_x000D_
<div class="text">_x000D_
  <h2>Title!</h2>_x000D_
  <p>Paragraph</p>_x000D_
</div>_x000D_
<div class="text">_x000D_
  <h2>Title!</h2>_x000D_
  <p>Paragraph</p>_x000D_
  <ul>_x000D_
    <li>list item</li>_x000D_
  </ul>_x000D_
</div>

Because the browser collapses margins, the text would appear as you'd expect, and the <div> wrapper tags don't influence the margins. Each element ensures it has spacing around it, but spacing won't be doubled. The margins of the <h2> and <p> won't add up, but slide into each other (they collapse). The same happens for the <p> and <ul> element.

Sadly, with modern designs this idea can bite you when you explicitly want a container. This is called a new block formatting context in CSS speak. The overflow or margin trick will give you that.

In the end the same rules as for css apply.

So I think this reference could be of some valuable use.

You can type about:debug in some of the mobile browsers to pull up a JavaScript console.

I had this issue on a REST API that was created using Spring framework. Adding a @ResponseBody annotation (to make the response JSON) resolved it.

Using facebook's TodoTextInput.js example

render() {
    return (
      <input className={
        classnames({
          edit: this.props.editing,
          'new-todo': this.props.newTodo
        })}
        type="text"
        placeholder={this.props.placeholder}
        autoFocus="true"
        value={this.state.text}
        onBlur={this.handleBlur}
        onChange={this.handleChange}
        onKeyDown={this.handleSubmit} />
    )
  } 

replacing classnames with plain vanilla js code will look like this:

render() {
    return (
      <input
        className={`
          ${this.props.editing ? 'edit' : ''} ${this.props.newTodo ? 'new-todo' : ''}
        `}
        type="text"
        placeholder={this.props.placeholder}
        autoFocus="true"
        value={this.state.text}
        onBlur={this.handleBlur}
        onChange={this.handleChange}
        onKeyDown={this.handleSubmit} />
    )
  }

I also noticed that you can provide a group of coroutines in wait() by simply specifying the list:

result=loop.run_until_complete(asyncio.wait([
        say('first hello', 2),
        say('second hello', 1),
        say('third hello', 4)
    ]))

Whereas grouping in gather() is done by just specifying multiple coroutines:

result=loop.run_until_complete(asyncio.gather(
        say('first hello', 2),
        say('second hello', 1),
        say('third hello', 4)
    ))

Set transparency using setAlpha(float alpha). The below code works for me were I used an alpha value in float, 0 - 1.

• 0: Full Transparent
• 0.5 - 50%: Transparent

• 1: Full Opaque

  ImageView imageView = (ImageView) itemView.findViewById(R.id.imageView); imageView.setImageResource(mResources[position]); imageView.setAlpha(.80f);

For Android 4.2 (API 17), you need to use android:configChanges="locale|layoutDirection" in your AndroidManifest.xml. See onConfigurationchanged is not called over jellybean(4.2.1)

You can even set the prof. pic size to its high resolution that is '1080x1080'

replace "150x150" with 1080x1080 and remove /vp/ from the link.

I actually found something that worked for me. It converts the text to binary and then to UTF8.

Source Text that has encoding issues: If ‘Yes’, what was your last

SELECT CONVERT(CAST(CONVERT(
    (SELECT CONVERT(CAST(CONVERT(english_text USING LATIN1) AS BINARY) USING UTF8) AS res FROM m_translation WHERE id = 865) 
USING LATIN1) AS BINARY) USING UTF8) AS 'result';

Corrected Result text: If ‘Yes’, what was your last

My source was wrongly encoded twice so I had two do it twice. For one time you can use:

SELECT CONVERT(CAST(CONVERT(column_name USING latin1) AS BINARY) USING UTF8) AS res FROM m_translation WHERE id = 865;

Please excuse me for any formatting mistakes

That's probably a requireJS module definition

Check here for more details

RequireJS is a JavaScript file and module loader. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Rhino and Node. Using a modular script loader like RequireJS will improve the speed and quality of your code.

Try This :

 <input min="0" max="100" id="when_change_range" type="range">
 <input type="text" id="text_for_show_range">

and in jQuery section :

 $('#when_change_range').change(function(){
 document.getElementById('text_for_show_range').value=$(this).val();
  });

For RubyOnRails app add localhost If you use custom Postgresql version

# config/database.yml
default: &default
  host: localhost

Use Addforce() method of a rigidbody compenent, make sure rigidbody is attached to the object and gravity is enabled, something like this

gameObj.rigidbody2D.AddForce(Vector3.up * 10 * Time.deltaTime); or 
gameObj.rigidbody2D.AddForce(Vector3.up * 1000); 

See which combination and what values matches your requirement and use accordingly. Hope it helps

Every control that uses Collections to store data have SelectedValue, SelectedItem property. Examples of these controls are ListBox, Dropdown, RadioButtonList, CheckBoxList.

To be more specific if you literally want to retrieve Text of Selected Item then you can write:

ListBox1.SelectedItem.Text;

Your ListBox1 can also return Text using SelectedValue property if value has set to that before. But above is more effective way to get text.

Now, the value is something that is not visible to user but it is used mostly to store in database. We don't insert Text of ListBox1, however we can insert it also, but we used to insert value of selected item. To get value we can use

ListBox1.SelectedValue

Source

char buffer [50];

unsigned long a = 5;

int n=sprintf (buffer, "%lu", a);

Had the exact same problem and just could not find the right solution. Hope this helps somebody.

I have an .NET Core 3.1 WebApi with EF Core. Upon receiving multiple calls at the same time, the applications was trying to add and save changes to the database at the same time.

In my case the problem was that the table that the data would be saved in did not have a primary key set.

Somehow EF Core missed when the migration was ran from the application that the ID in the model was supposed to be a primary key.

I found the problem by opening the SQL Profiler and seeing that all transactions was successfully submitted to the database (from the application) but only one new row was created. The profiler also showed that some type of deadlock was happening but I couldn't see much more in the trace logs of the profiler. On further inspection I noticed that the primary key identifier was missing on the column "Id".

The exceptions I got from my application was:

This SqlTransaction has completed; it is no longer usable.

and/or

An exception has been raised that is likely due to a transient failure. Consider enabling transient error resiliency by adding 'EnableRetryOnFailure()' to the 'UseSqlServer' call.

I had already tried deleting the bin and obj file and restarting VS and had no luck.

I've also had this issue many times and it's a pain to solve each time. Often it is due to the web.config file not having the correct version of one of the references. This means click on the reference in Visual Studio to see the version in the property tab, and then match it to the version in the web.config files.

Another way is (if possible) upgrade to a later version of the .net framework and then deleting bin/obj files and restarting Visual Studio. I can only assume it's changing something in the

A quick check of the diff between the csproj file doesn't actually show any major difference... But the differences it did show was (I've added (remove) to show the old line)

<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> (remove)
<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

<TargetFrameworkVersion>v4.5</TargetFrameworkVersion>(remove)
<TargetFrameworkVersion>v4.6</TargetFrameworkVersion>

In the Web.Config file (not the one in View)

<add key="webpages:Version" value="2.0.0.0" /> (remove)
<add key="webpages:Version" value="3.0.0.0"/>

It also added (to the same web.config file) but I manually removed it

 <system.codedom>
    <compilers>
      <compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:6 /nowarn:1659;1699;1701"/>
      <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:14 /nowarn:41008 /define:_MYTYPE=\&quot;Web\&quot; /optionInfer+"/>
    </compilers>
  </system.codedom>

Finally, in the Package Manager Console, add update-package

Run the website locally and see any compilation errors which was fixed by my second paragraph (matching the versions of the references)

Using Microsoft SQL Server Management Studio you can create Linked Server. First make connection to current (local) server, then go to Server Objects > Linked Servers > context menu > New Linked Server. In window New Linked Server you have to specify desired server name for remote server, real server name or IP address (Data Source) and credentials (Security page).

And further you can select data from linked server:

select * from [linked_server_name].[database].[schema].[table]

I was also stuck on the same kind of problem and I followed the simple steps below.

Just get the exact url of the file to which you want to copy, for example:

http://www.test.com/test.txt (file to copy)

Then pass the exact absolute folder path with filename where you do want to write that file.

1. If you are on a Windows machine then d:/xampp/htdocs/upload/test.txt

2. If you are on a Linux machine then /var/www/html/upload/test.txt

You can get the document root with the PHP function $_SERVER['DOCUMENT_ROOT'].

To exclude the lines that contain any of the strings in $arrayOfStringsNotInterestedIn, you should use:

(Get-Content $FileName) -notmatch [String]::Join('|',$arrayofStringsNotInterestedIn)

The code proposed by Chris only works if $arrayofStringsNotInterestedIn contains the full lines you want to exclude.

I met this problem because I use request.js which writen base on axios
And I already set a defaults.headers in request.js

import axios from 'axios'
const request = axios.create({
  baseURL: '', 
  timeout: 15000 
})
service.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded'

here is how I solve this
instead of

request.post('/manage/product/upload.do',
      param,config
    )

I use axios directly send request,and didn't add config

axios.post('/manage/product/upload.do',
      param
    )

hope this can solve your problem

Just a delegate that returns a boolean. It is used a lot in filtering lists but can be used wherever you'd like.

List<DateRangeClass>  myList = new List<DateRangeClass<GetSomeDateRangeArrayToPopulate);
myList.FindAll(x => (x.StartTime <= minDateToReturn && x.EndTime >= maxDateToReturn):

There may be a more eloquent way, but this is the way I came up with:

The function to find the last populated cell in a column is:

=INDEX( FILTER( A:A ; NOT( ISBLANK( A:A ) ) ) ; ROWS( FILTER( A:A ; NOT( ISBLANK( A:A ) ) ) ) )

So if you combine it with your current function it would look like this:

=DAYS360(A2,INDEX( FILTER( A:A ; NOT( ISBLANK( A:A ) ) ) ; ROWS( FILTER( A:A ; NOT( ISBLANK( A:A ) ) ) ) ))

I tried some of the supplied answers but none of them seemed to work. Then I tried this:

new webpack.ProvidePlugin({
    'window.jQuery'    : 'jquery',
    'window.$'         : 'jquery',
    'jQuery'           : 'jquery',
    '$'                : 'jquery'
});

Seems to work no matter which version I'm using

You get this error message if a Python file was closed from "the outside", i.e. not from the file object's close() method:

>>> f = open(".bashrc")
>>> os.close(f.fileno())
>>> del f
close failed in file object destructor:
IOError: [Errno 9] Bad file descriptor

The line del f deletes the last reference to the file object, causing its destructor file.__del__ to be called. The internal state of the file object indicates the file is still open since f.close() was never called, so the destructor tries to close the file. The OS subsequently throws an error because of the attempt to close a file that's not open.

Since the implementation of os.system() does not create any Python file objects, it does not seem likely that the system() call is the origin of the error. Maybe you could show a bit more code?

Are you 100% sure your browser is even loading the script? Go to your page in Firefox and use the console in Firebug to check if the script has been loaded or not.

The general approach to write to any stream (not only MemoryStream) is to use BinaryWriter:

static void Write(Stream s, Byte[] bytes)
{
    using (var writer = new BinaryWriter(s))
    {
        writer.Write(bytes);
    }
}

Editor warning: This solution is computationally inefficient and may bring down your connection for a large table.

NB - You need to do this first on a test copy of your table!

When I did it, I found that unless I also included AND n1.id <> n2.id, it deleted every row in the table.

1. If you want to keep the row with the lowest id value:

   DELETE n1 FROM names n1, names n2 WHERE n1.id > n2.id AND n1.name = n2.name
   

2. If you want to keep the row with the highest id value:

   DELETE n1 FROM names n1, names n2 WHERE n1.id < n2.id AND n1.name = n2.name
   

I used this method in MySQL 5.1

Not sure about other versions.

Update: Since people Googling for removing duplicates end up here
Although the OP's question is about DELETE, please be advised that using INSERT and DISTINCT is much faster. For a database with 8 million rows, the below query took 13 minutes, while using DELETE, it took more than 2 hours and yet didn't complete.

INSERT INTO tempTableName(cellId,attributeId,entityRowId,value)
    SELECT DISTINCT cellId,attributeId,entityRowId,value
    FROM tableName;

If you were talking about WPF then use:

 Application.Current.Windows.OfType<Window>().SingleOrDefault(w => w.IsActive);

I came across a similar question when dealing with an API that accepts both XML and JSON, but doesn't document how it would handle what you'd expect to be duplicate keys in the JSON accepted.

The following is a valid XML representation of your sample JSON:

<object>
  <a>x</a>
  <a>y</a>
</object>

When this is converted into JSON, you get the following:

{
  "object": {
    "a": [
      "x",
      "y"
    ]
  }
}

A natural mapping from a language that handles what you might call duplicate keys to another, can serve as a potential best practice reference here.

Hope that helps someone!

You need to specify the path where your chromedriver is located.

1. Download chromedriver for your desired platform from here.

2. Place chromedriver on your system path, or where your code is.

3. If not using a system path, link your chromedriver.exe (For non-Windows users, it's just called chromedriver):

   browser = webdriver.Chrome(executable_path=r"C:\path\to\chromedriver.exe")
   

   (Set executable_path to the location where your chromedriver is located.)

   If you've placed chromedriver on your System Path, you can shortcut by just doing the following:

   browser = webdriver.Chrome()

4. If you're running on a Unix-based operating system, you may need to update the permissions of chromedriver after downloading it in order to make it executable:

   chmod +x chromedriver

5. That's all. If you're still experiencing issues, more info can be found on this other StackOverflow article: Can't use chrome driver for Selenium

with UnionTable as  
(
    SELECT a.id, a.time FROM dbo.a
    UNION
    SELECT b.id, b.time FROM dbo.b
) SELECT id FROM UnionTable GROUP BY id

Do you control the excel worksheet in anyway? Is there a template the users have for giving you the input? If so, you can have code format the input cells for you.

When you are not behind a company firewall, using the Android Studio will resolve that issue naturally. But if you are behind a company firewall, this problem will occur. So downloading the files will be a workaround. On your own home network, updating Android Studio will resolve the issue and will ask you to delete those files that you have manually created. Just press OK as it is safe to remove them.

Use count(d.ertek) or count(d.id) instead of count(d). This can be happen when you have composite primary key at your entity.

I know there are many answers for this, but to me, this answer, by Robert Harvey, summarized it much more clearly:

A stable sort is one which preserves the original order of the input set, where the [unstable] algorithm does not distinguish between two or more items.

Source

Linux:

mvn validate clean install | egrep -v "(^\[INFO\])"

or

mvn validate clean install | egrep -v "(^\[INFO\]|^\[DEBUG\])"

Windows:

mvn validate clean install | findstr /V /R "^\[INFO\] ^\[DEBUG\]"

There is a lot of confusion going around in this thread. There are two solutions depending on how you installed ADT.

1. If you installed the ADT plugin manually then I believe you can use the "Delete ADT" -> "Install New Software" approach.

2. If you are using the ADT Bundle then do not follow that solution! You will break Eclipse. Here is an update from a Google member - read #18:

   https://code.google.com/p/android/issues/detail?id=72912

You must download a new version of the ADT-Bundle (yep, it's frustrating!).

Use:

/*/ITEM[starts-with(REVENUE_YEAR,'2552')]/REGION

Note: Unless your host language can't handle element instance as result, do not use text nodes specially in mixed content data model. Do not start expressions with // operator when the schema is well known.

Basically what you have to do is to bind the onresize event to your body, once you catch the event you just need to resize the canvas using window.innerWidth and window.innerHeight.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Canvas Resize</title>

    <script type="text/javascript">
        function resize_canvas(){
            canvas = document.getElementById("canvas");
            if (canvas.width  < window.innerWidth)
            {
                canvas.width  = window.innerWidth;
            }

            if (canvas.height < window.innerHeight)
            {
                canvas.height = window.innerHeight;
            }
        }
    </script>
</head>

<body onresize="resize_canvas()">
        <canvas id="canvas">Your browser doesn't support canvas</canvas>
</body>
</html>

Aux routes syntax has changed with the new RC.3 router.

There are some known issues with aux routes but basic support is available.

You can define routes to show components in a named <router-outlet>

Route config

{path: 'chat', component: ChatCmp, outlet: 'aux'}

Named router outlet

<router-outlet name="aux">

Navigate aux routes

this._router.navigateByUrl("/crisis-center(aux:chat;open=true)");

It seems navigating aux routes from routerLink is not yet supported

<a [routerLink]="'/team/3(aux:/chat;open=true)'">Test</a>

<a [routerLink]="['/team/3', {outlets: {aux: 'chat'}}]">c</a>

Not tried myself yet

See also Angular2 router in one component

RC.5 routerLink DSL (same as createUrlTree parameter) https://angular.io/docs/ts/latest/api/router/index/Router-class.html#!#createUrlTree-anchor

An IntentService is an extension of a Service that is made to ease the execution of a task that needs to be executed in background and in a seperated thread.

IntentService starts, create a thread and runs its task in the thread. once done, it cleans everything. Only one instance of a IntentService can run at the same time, several calls are enqueued.

It is very simple to use and very convenient for a lot of uses, for instance downloading stuff. But it has limitations that can make you want to use instead the more basic (not simple) Service.

For example, a service connected to a xmpp server and bound by activities cannot be simply done using an IntentService. You'll end up ignoring or overriding IntentService stuffs.

By getting the getLastKnownLocation you do not actually initiate a fix yourself.

Be aware that this could start the provider, but if the user has ever gotten a location before, I don't think it will. The docs aren't really too clear on this.

According to the docs getLastKnownLocation:

Returns a Location indicating the data from the last known location fix obtained from the given provider. This can be done without starting the provider.

Here is a quick snippet:

import android.content.Context;
import android.location.Location;
import android.location.LocationManager;
import java.util.List;

public class UtilLocation {
    public static Location getLastKnownLoaction(boolean enabledProvidersOnly, Context context){
        LocationManager manager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
        Location utilLocation = null;
        List<String> providers = manager.getProviders(enabledProvidersOnly);
        for(String provider : providers){

            utilLocation = manager.getLastKnownLocation(provider);
            if(utilLocation != null) return utilLocation;
        }
        return null;
    }
}

You also have to add new permission to AndroidManifest.xml

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

If you specify image as well as build, then Compose names the built image with the webapp and optional tag specified in image:

build: ./dir
image: webapp:tag

This results in an image named webapp and tagged tag, built from ./dir.

https://docs.docker.com/compose/compose-file/#build

I'm a Ubuntu user and I had the same issue, when I was trying to run python script through a bash script while files were located in a NTFS partition (even with su didn't work) then I've moved it home (ext4) then it worked.

In my case, detach and attach worked:

 getSupportFragmentManager()
   .beginTransaction()
   .detach(contentFragment)
   .attach(contentFragment)
   .commit();

Look at SignalR Tests for the feature.

Test "SendToUser" takes automatically the user identity passed by using a regular owin authentication library.

The scenario is you have a user who has connected from multiple devices/browsers and you want to push a message to all his active connections.

One thing to realize is that the first defined background image is topmost in the stack. The last defined image will be bottommost. That means, to have a background gradient behind an image, you would need:

  body {_x000D_
    background-image: url("http://www.skrenta.com/images/stackoverflow.jpg"), linear-gradient(red, yellow);_x000D_
    background-image: url("http://www.skrenta.com/images/stackoverflow.jpg"), -webkit-gradient(linear, left top, left bottom, from(red), to(yellow));_x000D_
    background-image: url("http://www.skrenta.com/images/stackoverflow.jpg"), -moz-linear-gradient(top, red, yellow);_x000D_
  }

You could also define background positions and background size for the images. I put together a blog post about some interesting things you can do with CSS3 gradients

update

Component inheritance is supported since 2.3.0-rc.0

original

So far, the most convenient for me is to keep template & styles into separate *html & *.css files and specify those through templateUrl and styleUrls, so it's easy reusable.

@Component {
    selector: 'my-panel',
    templateUrl: 'app/components/panel.html', 
    styleUrls: ['app/components/panel.css']
}
export class MyPanelComponent extends BasePanelComponent

Here is how I've always done it:

    public static string Serialize(object obj) {
        using(MemoryStream memoryStream = new MemoryStream())
        using(StreamReader reader = new StreamReader(memoryStream)) {
            DataContractSerializer serializer = new DataContractSerializer(obj.GetType());
            serializer.WriteObject(memoryStream, obj);
            memoryStream.Position = 0;
            return reader.ReadToEnd();
        }
    }

    public static object Deserialize(string xml, Type toType) {
        using(Stream stream = new MemoryStream()) {
            byte[] data = System.Text.Encoding.UTF8.GetBytes(xml);
            stream.Write(data, 0, data.Length);
            stream.Position = 0;
            DataContractSerializer deserializer = new DataContractSerializer(toType);
            return deserializer.ReadObject(stream);
        }
    }

I know that is to late, but I want to share my answer. What I did it's save de script's tags in a HTML file, locking up the scripts on my Index file in a div with an id, something like this.

<div id="ScriptsReload"><script src="js/script.js"></script></div>

and when I wanted to refresh I just used.

$("#ScriptsReload").load("html_with_scripts_tags.html", "", function(
    response,
    status,
    request
  ) {

  });

The problem is that you used the select option, this is where you went wrong. Select signifies that a textbox or textArea has a focus. What you need to do is use change. "Fires when a new choice is made in a select element", also used like blur when moving away from a textbox or textArea.

function start(){
      document.getElementById("activitySelector").addEventListener("change", addActivityItem, false);
      }

function addActivityItem(){
      //option is selected
      alert("yeah");
}

window.addEventListener("load", start, false);

Another method. (in Relative tested, but I think in Linear would be also works)

    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:adjustViewBounds="true"
    android:gravity="center"

If you use Eclipse you can choose graphical layout when *.xml file is active. On the top, you will find the Structure and option Adjust View Bounds. It will cut short all dimensions of pseudo-frame (blue rectangle) to size of your drawable file.

See also the scaleType option with make funny your image. Try it in Eclipse ;)

You can customise the credits, changing the URL, text, Position etc. All the info is documented here: http://api.highcharts.com/highcharts/credits. To simply disable them altogether, use:

credits: {
    enabled: false
},

I have seen various libraries use some method to check for unreferenced memory and such. I believe they simply "override" the memory allocation and deallocation methods (malloc/free), which has some logic that keeps track of the pointers. I suppose this is overkill for your use case, but it would be one way to do it.

>>> import time
>>> print(time.strftime('%a %H:%M:%S'))
Mon 06:23:14

SQL Server was not configured to allow mixed authentication.

Here are steps to fix:

1. Right-click on SQL Server instance at root of Object Explorer, click on Properties
2. Select Security from the left pane.

3. Select the SQL Server and Windows Authentication mode radio button, and click OK.

   

4. Right-click on the SQL Server instance, select Restart (alternatively, open up Services and restart the SQL Server service).

This is also incredibly helpful for IBM Connections users, my wizards were not able to connect until I fxed this setting.

I was integrating ZXING into an Android application and there were no good sources for the input all over, I will give you a hint on what worked for me - because it turned out to be very easy.

There is a real handy git repository that provides the zxing android library project as an AAR archive.

• https://github.com/journeyapps/zxing-android-embedded

All you have to do is add this to your build.gradle

repositories {
    jcenter()
}

dependencies {
    implementation 'com.journeyapps:zxing-android-embedded:3.0.2@aar'
    implementation 'com.google.zxing:core:3.2.0'
}

and Gradle does all the magic to compile the code and makes it accessible in your app.

To start the Scanner afterwards, use this class/method: From the Activity:

new IntentIntegrator(this).initiateScan(); // `this` is the current Activity

From a Fragment:

IntentIntegrator.forFragment(this).initiateScan(); // `this` is the current Fragment
// If you're using the support library, use IntentIntegrator.forSupportFragment(this) instead.

There are several customizing options:

IntentIntegrator integrator = new IntentIntegrator(this);
integrator.setDesiredBarcodeFormats(IntentIntegrator.ONE_D_CODE_TYPES);
integrator.setPrompt("Scan a barcode");
integrator.setCameraId(0);  // Use a specific camera of the device
integrator.setBeepEnabled(false);
integrator.setBarcodeImageEnabled(true);
integrator.initiateScan();

They have a sample-project and are providing several integration examples:

• AnyOrientationCaptureActivity
• ContinuousCaptureActivity
• CustomScannerActivity
• ToolbarCaptureActivity

If you already visited the link you going to see that I just copy&pasted the code from the git README. If not, go there to get some more insight and code examples.

Instead of using local imports, you may import the entire module instead of the particular object. Then, in your app module, call mod_login.mod_login

app.py

from flask import Flask
import mod_login

# ...

do_stuff_with(mod_login.mod_login)

mod_login.py

from app import app

mod_login = something

From your code

<input type=button value="Select" onClick="sendValue(this.form.details);"

Im not sure that your this.form.details valid or not.

IF it's valid, have a look in window.opener.document.getElementById('details').value = selvalue;

I can't found an input's id contain details I'm just found only id=sku1 (recommend you to add " like id="sku1").

And from your id it's hardcode. Let's see how to do with dynamic when a child has callback to update some textbox on the parent Take a look at here.

First page.

<html>
<head>
<script>
    function callFromDialog(id,data){ //for callback from the dialog
        document.getElementById(id).value = data;
        // do some thing other if you want
    }

    function choose(id){
        var URL = "secondPage.html?id=" + id + "&dummy=avoid#";
        window.open(URL,"mywindow","menubar=1,resizable=1,width=350,height=250")
    }
</script>
</head>
<body>
<input id="tbFirst" type="text" /> <button onclick="choose('tbFirst')">choose</button>
<input id="tbSecond" type="text" /> <button onclick="choose('tbSecond')">choose</button>
</body>
</html>

Look in function choose I'm sent an id of textbox to the popup window (don't forget to add dummy data at last of URL param like &dummy=avoid#)

Popup Page

<html>
<head>
<script>
    function goSelect(data){
        var idFromCallPage = getUrlVars()["id"];
        window.opener.callFromDialog(idFromCallPage,data); //or use //window.opener.document.getElementById(idFromCallPage).value = data;
        window.close();
    }


    function getUrlVars(){
        var vars = [], hash;
        var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
        for(var i = 0; i < hashes.length; i++)
        {
            hash = hashes[i].split('=');
            vars.push(hash[0]);
            vars[hash[0]] = hash[1];
        }
        return vars;
    }
</script>
</head>
<body>
<a href="#" onclick="goSelect('Car')">Car</a> <br />
<a href="#" onclick="goSelect('Food')">Food</a> <br />
</body>
</html>

I have add function getUrlVars for get URL param that the parent has pass to child.

Okay, when select data in the popup, for this case it's will call function goSelect

In that function will get URL param to sent back.

And when you need to sent back to the parent just use window.opener and the name of function like window.opener.callFromDialog

By fully is window.opener.callFromDialog(idFromCallPage,data);

Or if you want to use window.opener.document.getElementById(idFromCallPage).value = data; It's ok too.

Swift 4 and above

@IBAction func submitAction(sender: UIButton) {

    //declare parameter as a dictionary which contains string as key and value combination. considering inputs are valid

    let parameters = ["id": 13, "name": "jack"]

    //create the url with URL
    let url = URL(string: "www.thisismylink.com/postName.php")! //change the url

    //create the session object
    let session = URLSession.shared

    //now create the URLRequest object using the url object
    var request = URLRequest(url: url)
    request.httpMethod = "POST" //set http method as POST

    do {
        request.httpBody = try JSONSerialization.data(withJSONObject: parameters, options: .prettyPrinted) // pass dictionary to nsdata object and set it as request body
    } catch let error {
        print(error.localizedDescription)
    }

    request.addValue("application/json", forHTTPHeaderField: "Content-Type")
    request.addValue("application/json", forHTTPHeaderField: "Accept")

    //create dataTask using the session object to send data to the server
    let task = session.dataTask(with: request as URLRequest, completionHandler: { data, response, error in

        guard error == nil else {
            return
        }

        guard let data = data else {
            return
        }

        do {
            //create json object from data
            if let json = try JSONSerialization.jsonObject(with: data, options: .mutableContainers) as? [String: Any] {
                print(json)
                // handle json...
            }
        } catch let error {
            print(error.localizedDescription)
        }
    })
    task.resume()
}

I've always used a method like

public static final byte[] fromHexString(final String s) {
    String[] v = s.split(" ");
    byte[] arr = new byte[v.length];
    int i = 0;
    for(String val: v) {
        arr[i++] =  Integer.decode("0x" + val).byteValue();

    }
    return arr;
}

this method splits on space delimited hex values but it wouldn't be hard to make it split the string on any other criteria such as into groupings of two characters.

Creating a single combined plot with your current data set up would look something like this

p <- ggplot() +
      # blue plot
      geom_point(data=visual1, aes(x=ISSUE_DATE, y=COUNTED)) + 
      geom_smooth(data=visual1, aes(x=ISSUE_DATE, y=COUNTED), fill="blue",
        colour="darkblue", size=1) +
      # red plot
      geom_point(data=visual2, aes(x=ISSUE_DATE, y=COUNTED)) + 
      geom_smooth(data=visual2, aes(x=ISSUE_DATE, y=COUNTED), fill="red",
        colour="red", size=1)

however if you could combine the data sets before plotting then ggplot will automatically give you a legend, and in general the code looks a bit cleaner

visual1$group <- 1
visual2$group <- 2

visual12 <- rbind(visual1, visual2)

p <- ggplot(visual12, aes(x=ISSUE_DATE, y=COUNTED, group=group, col=group, fill=group)) +
      geom_point() +
      geom_smooth(size=1)

For Mac + Android Studio 2.1, I found the best way is to save the image and then copy (cmd + c) the image file in Finder and then click on the the drawable directory and cmd + v to paste in that directory. Copying the image directly from a website using cmd + c (or right click then copy) doesn't seem to work.

PHP is an easy language with multiple solutions. A Quick Solution would be using Double Quotes " ". Example Below.

$var1 = "Hello";
$var2 = "World";
$var3 = "How";
$var4 = "are";
$var5 = "you";
$var6 = "?";
$var7 = ",";

echo "$var1 $var2$var7 $var3 $var4 $var5$var6";

//Output: Hello World, How are you?

Use getattr if you have an attribute in string form:

>>> class User(object):
       name = 'John'

>>> u = User()
>>> param = 'name'
>>> getattr(u, param)
'John'

Otherwise use the dot .:

>>> class User(object):
       name = 'John'

>>> u = User()
>>> u.name
'John'

Do you want to match a class exactly, e.g. only matching FileInputStream instead of any subclass of FileInputStream? If so, use getClass() and ==. I would typically do this in an equals, so that an instance of X isn't deemed equal to an instance of a subclass of X - otherwise you can get into tricky symmetry problems. On the other hand, that's more usually useful for comparing that two objects are of the same class than of one specific class.

Otherwise, use instanceof. Note that with getClass() you will need to ensure you have a non-null reference to start with, or you'll get a NullPointerException, whereas instanceof will just return false if the first operand is null.

Personally I'd say instanceof is more idiomatic - but using either of them extensively is a design smell in most cases.

<script> 
    function show() { 
        if(document.getElementById('benefits').style.display=='none') { 
            document.getElementById('benefits').style.display='block'; 
        } 
        return false;
    } 
    function hide() { 
        if(document.getElementById('benefits').style.display=='block') { 
            document.getElementById('benefits').style.display='none'; 
        } 
        return false;
    }   
</script> 


 <div id="opener"><a href="#1" name="1" onclick="return show();">click here</a></div> 
    <div id="benefits" style="display:none;">some input in here plus the close button 
           <div id="upbutton"><a onclick="return hide();">click here</a></div> 
    </div> 

You could use AJAX to send a POST request if you don't want forms.

Using jquery $.post method it is pretty simple:

$.post('/foo.php', { key1: 'value1', key2: 'value2' }, function(result) {
    alert('successfully posted key1=value1&key2=value2 to foo.php');
});

Yes you can handle with the catch operator like this and show alert as you want but firstly you have to import Rxjs for the same like this way

import {Observable} from 'rxjs/Rx';

return this.http.request(new Request(this.requestoptions))
            .map((res: Response) => {
                if (res) {
                    if (res.status === 201) {
                        return [{ status: res.status, json: res }]
                    }
                    else if (res.status === 200) {
                        return [{ status: res.status, json: res }]
                    }
                }
            }).catch((error: any) => {
                if (error.status === 500) {
                    return Observable.throw(new Error(error.status));
                }
                else if (error.status === 400) {
                    return Observable.throw(new Error(error.status));
                }
                else if (error.status === 409) {
                    return Observable.throw(new Error(error.status));
                }
                else if (error.status === 406) {
                    return Observable.throw(new Error(error.status));
                }
            });
    }

also you can handel error (with err block) that is throw by catch block while .map function,

like this -

...
.subscribe(res=>{....}
           err => {//handel here});

Update

as required for any status without checking particluar one you can try this: -

return this.http.request(new Request(this.requestoptions))
            .map((res: Response) => {
                if (res) {
                    if (res.status === 201) {
                        return [{ status: res.status, json: res }]
                    }
                    else if (res.status === 200) {
                        return [{ status: res.status, json: res }]
                    }
                }
            }).catch((error: any) => {
                if (error.status < 400 ||  error.status ===500) {
                    return Observable.throw(new Error(error.status));
                }
            })
            .subscribe(res => {...},
                       err => {console.log(err)} );

Just type the commands

cd  /Library/Developer/CommandLineTools/Packages/;
open macOS_SDK_headers_for_macOS_10.14.pkg

Reference: https://forums.developer.apple.com/thread/104296

VBA functions treat the function name itself as a sort of variable. So instead of using a "return" statement, you would just say:

test = 1

Notice, though, that this does not break out of the function. Any code after this statement will also be executed. Thus, you can have many assignment statements that assign different values to test, and whatever the value is when you reach the end of the function will be the value returned.

I had this problem working with pycurl and I solved it using

c.setopt(pycurl.HTTP_VERSION, pycurl.CURL_HTTP_VERSION_1_0) 

like Eric Caron says.

It's essentially the access protection of the public and protected members of the base class in the derived class. With public inheritance, the derived class can see public and protected members of the base. With private inheritance, it can't. With protected, the derived class and any classes derived from that can see them.

ngOnInit() is called right after the directive's data-bound properties have been checked for the first time, and before any of its children have been checked. It is invoked only once when the directive is instantiated.

ngAfterViewInit() is called after a component's view, and its children's views, are created. Its a lifecycle hook that is called after a component's view has been fully initialized.

An activity populates the ActionBar in its onCreateOptionsMenu() method.

Instead of using setcustomview(), just override onCreateOptionsMenu like this:

@Override    
public boolean onCreateOptionsMenu(Menu menu) {
  MenuInflater inflater = getMenuInflater();
  inflater.inflate(R.menu.mainmenu, menu);
  return true;
}

If an actions in the ActionBar is selected, the onOptionsItemSelected() method is called. It receives the selected action as parameter. Based on this information you code can decide what to do for example:

@Override
public boolean onOptionsItemSelected(MenuItem item) {
  switch (item.getItemId()) {
    case R.id.menuitem1:
      Toast.makeText(this, "Menu Item 1 selected", Toast.LENGTH_SHORT).show();
      break;
    case R.id.menuitem2:
      Toast.makeText(this, "Menu item 2 selected", Toast.LENGTH_SHORT).show();
      break;
  }
  return true;
}

I would normally just do a = [1,2,3] which is actually a list but for arrays look at this formal definition

In create-react-app relative paths for images don't seem to work. Instead, you can import an image:

import logo from './logo.png' // relative path to image 

class Nav extends Component { 
    render() { 
        return ( 
            <img src={logo} alt={"logo"}/> 
        )  
    }
}

This solved my problem. You should select Properties, Right-Click, Source Control and Get Specific Version.

<form:form method="GET" action="home.do"> <input id="Back" class="sub_but" type="submit" value="Back" /> </form:form>

This is works just fine I had tested it on IE9.

I use openssl, but if you prefer not to, or are on a system (particularly Windows) that doesn't have it, since java 7 in 2011 keytool can do the whole job:

 keytool -printcert -sslserver host[:port] -rfc >tempfile
 keytool -import [-noprompt] -alias nm -keystore file [-storepass pw] [-storetype ty] <tempfile 
 # or with noprompt and storepass (so nothing on stdin besides the cert) piping works:
 keytool -printcert -sslserver host[:port] -rfc | keytool -import -noprompt -alias nm -keystore file -storepass pw [-storetype ty]

Conversely, for java 9 up always, and for earlier versions in many cases, Java can use a PKCS12 file for a keystore instead of the traditional JKS file, and OpenSSL can create a PKCS12 without any assistance from keytool:

openssl s_client -connect host:port </dev/null | openssl pkcs12 -export -nokeys [-name nm] [-passout option] -out p12file
# <NUL on Windows
# default is to prompt for password, but -passout supports several options 
# including actual value, envvar, or file; see the openssl(1ssl) man page 

try this , it works 100 % : add columns and rows programatically : you need to create item class at first :

public class Item
        {
            public int Num { get; set; }
            public string Start { get; set; }
            public string Finich { get; set; }
        }

        private void generate_columns()
        {
            DataGridTextColumn c1 = new DataGridTextColumn();
            c1.Header = "Num";
            c1.Binding = new Binding("Num");
            c1.Width = 110;
            dataGrid1.Columns.Add(c1);
            DataGridTextColumn c2 = new DataGridTextColumn();
            c2.Header = "Start";
            c2.Width = 110;
            c2.Binding = new Binding("Start");
            dataGrid1.Columns.Add(c2);
            DataGridTextColumn c3 = new DataGridTextColumn();
            c3.Header = "Finich";
            c3.Width = 110;
            c3.Binding = new Binding("Finich");
            dataGrid1.Columns.Add(c3);

            dataGrid1.Items.Add(new Item() { Num = 1, Start = "2012, 8, 15", Finich = "2012, 9, 15" });
            dataGrid1.Items.Add(new Item() { Num = 2, Start = "2012, 12, 15", Finich = "2013, 2, 1" });
            dataGrid1.Items.Add(new Item() { Num = 3, Start = "2012, 8, 1", Finich = "2012, 11, 15" });

        }

I run some tests to see if links on my site are valid - alerts me to when third parties change their links. I was having an issue with a site that had a poorly configured certificate that meant that php's get_headers didn't work.

SO, I read that curl was faster and decided to give that a go. then i had an issue with linkedin which gave me a 999 error, which turned out to be a user agent issue.

I didn't care if the certificate was not valid for this test, and i didn't care if the response was a re-direct.

Then I figured use get_headers anyway if curl was failing....

Give it a go....

/**
 * returns true/false if the $url is present.
 *
 * @param string $url assumes this is a valid url.
 *
 * @return bool
 */
private function url_exists (string $url): bool
{
  $ch = curl_init($url);
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_NOBODY, TRUE);             // this does a head request to make it faster.
  curl_setopt($ch, CURLOPT_HEADER, TRUE);             // just the headers
  curl_setopt($ch, CURLOPT_SSL_VERIFYSTATUS, FALSE);  // turn off that pesky ssl stuff - some sys admins can't get it right.
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
  // set a real user agent to stop linkedin getting upset.
  curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36');
  curl_exec($ch);
  $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
  if (($http_code >= HTTP_OK && $http_code < HTTP_BAD_REQUEST) || $http_code === 999)
  {
    curl_close($ch);
    return TRUE;
  }
  $error = curl_error($ch); // used for debugging.
  curl_close($ch);
  // just try the get_headers - it might work!
  stream_context_set_default(array('http' => array('method' => 'HEAD')));
  $file_headers = @get_headers($url);
  if ($file_headers)
  {
    $response_code = substr($file_headers[0], 9, 3);
    return $response_code >= 200 && $response_code < 400;
  }
  return FALSE;
}

I live in uk was keep on trying for 'us-west-2'region. So redirected to 'eu-west-2'. The correct region for S3 is 'eu-west-2'

Resolved like this:

# chown -R <user>: node_modules

Learn from another guy:

<a onclick="window.open(this.href,'_blank');return false;" href="http://www.foracure.org.au">Some Other Site</a>

It makes sense to me.

In your mail3.php file you should trap errors in a try {} catch {}

try {
    /*code here for email*/
} catch (Exception $e) {
    header('HTTP/1.1 500 Internal Server Error');
}

Then in your success call you wont have to worry about your errors, because it will never return as a success.

and you can use: window.location.href = "thankyou.php"; inside your success function like Nick stated.

if you are using netbeans you must add Mysql JDBC driver in the library list of the project, in the properties of your project

Did you try using System.Net.WebClient?

$url = 'https://IPADDRESS/resource'
$wc = New-Object System.Net.WebClient
$wc.Credentials = New-Object System.Net.NetworkCredential("username","password")
$wc.DownloadString($url)

If you have a more complicated use case than described in the answer of Glennie Helles Sindholt e.g. you have other/few non-join column names that are also same and want to distinguish them while selecting it's best to use aliasses, e.g:

df3 = df1.select("a", "b").alias("left")\
   .join(df2.select("a", "b").alias("right"), ["a"])\
   .select("left.a", "left.b", "right.b")

df3.columns
['a', 'b', 'b']

If you already have MinGW installed in Windows 7, just simply do the following:

1. Make another copy of C:\MinGW\bin\mingw32-make.exe file in the same folder.
2. Rename the file name from mingw32-make.exe to make.exe.
3. Run make command again.

Tested working in my laptop for above steps.

Cross-Origin Resource Sharing - CORS (A.K.A. Cross-Domain AJAX request) is an issue that most web developers might encounter, according to Same-Origin-Policy, browsers restrict client JavaScript in a security sandbox, usually JS cannot directly communicate with a remote server from a different domain. In the past developers created many tricky ways to achieve Cross-Domain resource request, most commonly using ways are:

1. Use Flash/Silverlight or server side as a "proxy" to communicate with remote.
2. JSON With Padding (JSONP).
3. Embeds remote server in an iframe and communicate through fragment or window.name, refer here.

Those tricky ways have more or less some issues, for example JSONP might result in security hole if developers simply "eval" it, and #3 above, although it works, both domains should build strict contract between each other, it neither flexible nor elegant IMHO:)

W3C had introduced Cross-Origin Resource Sharing (CORS) as a standard solution to provide a safe, flexible and a recommended standard way to solve this issue.

The Mechanism

From a high level we can simply deem CORS is a contract between client AJAX call from domain A and a page hosted on domain B, a typical Cross-Origin request/response would be:

DomainA AJAX request headers

Host DomainB.com
User-Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0) Gecko/20100101 Firefox/4.0
Accept text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8,application/json
Accept-Language en-us;
Accept-Encoding gzip, deflate
Keep-Alive 115
Origin http://DomainA.com 

DomainB response headers

Cache-Control private
Content-Type application/json; charset=utf-8
Access-Control-Allow-Origin DomainA.com
Content-Length 87
Proxy-Connection Keep-Alive
Connection Keep-Alive

The blue parts I marked above were the kernal facts, "Origin" request header "indicates where the cross-origin request or preflight request originates from", the "Access-Control-Allow-Origin" response header indicates this page allows remote request from DomainA (if the value is * indicate allows remote requests from any domain).

As I mentioned above, W3 recommended browser to implement a "preflight request" before submiting the actually Cross-Origin HTTP request, in a nutshell it is an HTTP OPTIONS request:

OPTIONS DomainB.com/foo.aspx HTTP/1.1

If foo.aspx supports OPTIONS HTTP verb, it might return response like below:

HTTP/1.1 200 OK
Date: Wed, 01 Mar 2011 15:38:19 GMT
Access-Control-Allow-Origin: http://DomainA.com
Access-Control-Allow-Methods: POST, GET, OPTIONS, HEAD
Access-Control-Allow-Headers: X-Requested-With
Access-Control-Max-Age: 1728000
Connection: Keep-Alive
Content-Type: application/json

Only if the response contains "Access-Control-Allow-Origin" AND its value is "*" or contain the domain who submitted the CORS request, by satisfying this mandtory condition browser will submit the actual Cross-Domain request, and cache the result in "Preflight-Result-Cache".

I blogged about CORS three years ago: AJAX Cross-Origin HTTP request

I know this is too late. But i solved this issue with following Code:

Java Script:

Handlebars.registerHelper('eachData', function(context, options) {
      var fn = options.fn, inverse = options.inverse, ctx;
      var ret = "";

      if(context && context.length > 0) {
        for(var i=0, j=context.length; i<j; i++) {
          ctx = Object.create(context[i]);
          ctx.index = i;
          ret = ret + fn(ctx);
        }
      } else {
        ret = inverse(this);
      }
      return ret;
}); 

HTML:

{{#eachData items}}
 {{index}} // You got here start with 0 index
{{/eachData}}

if you want start your index with 1 you should do following code:

Javascript:

Handlebars.registerHelper('eachData', function(context, options) {
      var fn = options.fn, inverse = options.inverse, ctx;
      var ret = "";

      if(context && context.length > 0) {
        for(var i=0, j=context.length; i<j; i++) {
          ctx = Object.create(context[i]);
          ctx.index = i;
          ret = ret + fn(ctx);
        }
      } else {
        ret = inverse(this);
      }
      return ret;
    }); 

Handlebars.registerHelper("math", function(lvalue, operator, rvalue, options) {
    lvalue = parseFloat(lvalue);
    rvalue = parseFloat(rvalue);

    return {
        "+": lvalue + rvalue
    }[operator];
});

HTML:

{{#eachData items}}
     {{math index "+" 1}} // You got here start with 1 index
 {{/eachData}}

Thanks.

With a vector iterators do no offer any real advantage. The syntax is uglier, longer to type and harder to read.

Iterating over a vector using iterators is not faster and is not safer (actually if the vector is possibly resized during the iteration using iterators will put you in big troubles).

The idea of having a generic loop that works when you will change later the container type is also mostly nonsense in real cases. Unfortunately the dark side of a strictly typed language without serious typing inference (a bit better now with C++11, however) is that you need to say what is the type of everything at each step. If you change your mind later you will still need to go around and change everything. Moreover different containers have very different trade-offs and changing container type is not something that happens that often.

The only case in which iteration should be kept if possible generic is when writing template code, but that (I hope for you) is not the most frequent case.

The only problem present in your explicit index loop is that size returns an unsigned value (a design bug of C++) and comparison between signed and unsigned is dangerous and surprising, so better avoided. If you use a decent compiler with warnings enabled there should be a diagnostic on that.

Note that the solution is not to use an unsiged as the index, because arithmetic between unsigned values is also apparently illogical (it's modulo arithmetic, and x-1 may be bigger than x). You instead should cast the size to an integer before using it. It may make some sense to use unsigned sizes and indexes (paying a LOT of attention to every expression you write) only if you're working on a 16 bit C++ implementation (16 bit was the reason for having unsigned values in sizes).

As a typical mistake that unsigned size may introduce consider:

void drawPolyline(const std::vector<P2d>& points)
{
    for (int i=0; i<points.size()-1; i++)
        drawLine(points[i], points[i+1]);
}

Here the bug is present because if you pass an empty points vector the value points.size()-1 will be a huge positive number, making you looping into a segfault. A working solution could be

for (int i=1; i<points.size(); i++)
    drawLine(points[i - 1], points[i]);

but I personally prefer to always remove unsinged-ness with int(v.size()).

PS: If you really don't want to think by to yourself to the implications and simply want an expert to tell you then consider that a quite a few world recognized C++ experts agree and expressed opinions on that unsigned values are a bad idea except for bit manipulations.

Discovering the ugliness of using iterators in the case of iterating up to second-last is left as an exercise for the reader.

The accepted solution (from @charles bailey) is highly dangerous if you are working in a shared repo.

As a best practice, all commits pushed to a remote repo that is shared should be considered 'immutable'. Use 'git revert' instead: http://www.kernel.org/pub/software/scm/git/docs/user-manual.html#fixing-mistakes

https://git-scm.com/book/be/v2/Git-Basics-Undoing-Things

- (void) imageConvert
{
     UIImage *snapshot = self.myImageView.image;
     [self encodeImageToBase64String:snapshot];
}    


call this method for image convert in base 64 
    -(NSString *)encodeImageToBase64String:(UIImage *)image
    {
        return [UIImagePNGRepresentation(image) base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];
    }

Use Convert.ToDouble("41.00027357629127");

Convert.ToDouble documentation

As far as I'm aware Ratchet is the best PHP WebSocket solution available at the moment. And since it's open source you can see how the author has built this WebSocket solution using PHP.

In general, when you get an error like this, just do

yum provides ld-linux.so.2

then you'll see something like:

glibc-2.20-5.fc21.i686 : The GNU libc libraries
Repo        : fedora
Matched from:
Provides    : ld-linux.so.2

and then you just run the following like BRPocock wrote (in case you were wondering what the logic was...):

yum install glibc.i686

Yes, you can use what's known as :nth-child selectors.

In this case you would use:

li:nth-child(3n) {
// Styling for every third element here.
}

:nth-child(3n):

3(0) = 0
3(1) = 3
3(2) = 6
3(3) = 9
3(4) = 12

:nth-child() is compatible in Chrome, Firefox, and IE9+.

For a work around to use :nth-child() amongst other pseudo-classes/attribute selectors in IE6 through to IE8, see this link.

Also you can use ng-repeat with ng-if:

<div ng-repeat="(key, value) in order" ng-if="value > 0">

Here's another re + itertools version that should work when searching for either a str or a RegexpObject. I will freely admit that this is likely over-engineered, but for some reason it entertained me.

import itertools
import re

def find_nth(haystack, needle, n = 1):
    """
    Find the starting index of the nth occurrence of ``needle`` in \
    ``haystack``.

    If ``needle`` is a ``str``, this will perform an exact substring
    match; if it is a ``RegexpObject``, this will perform a regex
    search.

    If ``needle`` doesn't appear in ``haystack``, return ``-1``. If
    ``needle`` doesn't appear in ``haystack`` ``n`` times,
    return ``-1``.

    Arguments
    ---------
    * ``needle`` the substring (or a ``RegexpObject``) to find
    * ``haystack`` is a ``str``
    * an ``int`` indicating which occurrence to find; defaults to ``1``

    >>> find_nth("foo", "o", 1)
    1
    >>> find_nth("foo", "o", 2)
    2
    >>> find_nth("foo", "o", 3)
    -1
    >>> find_nth("foo", "b")
    -1
    >>> import re
    >>> either_o = re.compile("[oO]")
    >>> find_nth("foo", either_o, 1)
    1
    >>> find_nth("FOO", either_o, 1)
    1
    """
    if (hasattr(needle, 'finditer')):
        matches = needle.finditer(haystack)
    else:
        matches = re.finditer(re.escape(needle), haystack)
    start_here = itertools.dropwhile(lambda x: x[0] < n, enumerate(matches, 1))
    try:
        return next(start_here)[1].start()
    except StopIteration:
        return -1

The getcode() method (Added in python2.6) returns the HTTP status code that was sent with the response, or None if the URL is no HTTP URL.

>>> a=urllib.urlopen('http://www.google.com/asdfsf')
>>> a.getcode()
404
>>> a=urllib.urlopen('http://www.google.com/')
>>> a.getcode()
200

You are correct that this is currently not natively supported in Android, although Google has been saying it will be coming ever since Android was officially launched.

While not natively supported, the hardware on every android device released to date do support it. It is just disabled in software, and you would need to enable it in order to use these features.

It is however, fairly easy to do this, but you need to be root, and the specifics may be slightly different between different devices. Your best source for more informationa about this, would be XDA developers: http://forum.xda-developers.com/forumdisplay.php?f=564. Most of the existing solutions are based on replacing wpa_supplicant, and is the method I would recommend if possible on your device. For more details, see http://szym.net/2010/12/adhoc-wifi-in-android/.

Update: Its been a few years now, and whenever I need an ad hoc network connection on my phone I use CyanogenMod. It gives you both programmatic and scripted access to these functions, and the ability to create ad hoc (ibss) networks in the WiFi settings menu.

I summarize the answers found in that article:

http://www.quora.com/How-does-MongoDB-compare-to-CouchDB-What-are-the-advantages-and-disadvantages-of-each

MongoDB: Better querying, data storage in BSON (faster access), better data consistency, multiple collections

CouchDB: Better replication, with master to master replication and conflict resolution, data storage in JSON (human-readable, better access through REST services), querying through map-reduce.

So in conclusion, MongoDB is faster, CouchDB is safer.

Also: http://nosql.mypopescu.com/post/298557551/couchdb-vs-mongodb

When creating the colors, you may use rgb and set its alpha argument:

plot(1:10, col = rgb(red = 1, green = 0, blue = 0, alpha = 0.5),
     pch = 16, cex = 4)
points((1:10) + 0.4, col = rgb(red = 0, green = 0, blue = 1, alpha = 0.5),
       pch = 16, cex = 4)

Please see ?rgb for details.

Say st is your unformatted string, then run

st_nodigits=''.join(i for i in st if i.isalpha())

as mentioned above. But my guess that you need something very simple so say s is your string and st_res is a string without digits, then here is your code

l = ['0','1','2','3','4','5','6','7','8','9']
st_res=""
for ch in s:
 if ch not in l:
  st_res+=ch

In Java, as you may know, exceptions can be categorized into two: One that needs the throws clause or must be handled if you don't specify one and another one that doesn't. Now, see the following figure:

In Java, you can throw anything that extends the Throwable class. However, you don't need to specify a throws clause for all classes. Specifically, classes that are either an Error or RuntimeException or any of the subclasses of these two. In your case Exception is not a subclass of an Error or RuntimeException. So, it is a checked exception and must be specified in the throws clause, if you don't handle that particular exception. That is why you needed the throws clause.

From Java Tutorial:

An exception is an event, which occurs during the execution of a program, that disrupts the normal flow of the program's instructions.

Now, as you know exceptions are classified into two: checked and unchecked. Why these classification?

Checked Exception: They are used to represent problems that can be recovered during the execution of the program. They usually are not the programmer's fault. For example, a file specified by user is not readable, or no network connection available, etc., In all these cases, our program doesn't need to exit, instead it can take actions like alerting the user, or go into a fallback mechanism(like offline working when network not available), etc.

Unchecked Exceptions: They again can be divided into two: Errors and RuntimeExceptions. One reason for them to be unchecked is that they are numerous in number, and required to handle all of them will clutter our program and reduce its clarity. The other reason is:

• Runtime Exceptions: They usually happen due to a fault by the programmer. For example, if an ArithmeticException of division by zero occurs or an ArrayIndexOutOfBoundsException occurs, it is because we are not careful enough in our coding. They happen usually because some errors in our program logic. So, they must be cleared before our program enters into production mode. They are unchecked in the sense that, our program must fail when it occurs, so that we programmers can resolve it at the time of development and testing itself.

• Errors: Errors are situations from which usually the program cannot recover. For example, if a StackOverflowError occurs, our program cannot do much, such as increase the size of program's function calling stack. Or if an OutOfMemoryError occurs, we cannot do much to increase the amount of RAM available to our program. In such cases, it is better to exit the program. That is why they are made unchecked.

For detailed information see:

• Unchecked Exceptions — The Controversy
• The Catch or Specify Requirement

multi group radio button covert value to array

var arr = [];_x000D_
    function r(n) {_x000D_
_x000D_
_x000D_
        var section = $('input:radio[name="' + n + '"]:checked').val();_x000D_
        arr[n] = section;_x000D_
_x000D_
        console.log(arr)_x000D_
    }

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<input type="radio" onchange="r('b1')" class="radioID" name="b1" value="1">1_x000D_
<input type="radio" onchange="r('b1')"  class="radioID" name="b1" value="2"  >2_x000D_
<input type="radio" onchange="r('b1')"   class="radioID" name="b1" value="3">3_x000D_
_x000D_
<br>_x000D_
_x000D_
<input type="radio" onchange="r('b2')" class="radioID2" name="b2" value="4">4_x000D_
<input type="radio" onchange="r('b2')"  class="radioID2" name="b2" value="5"  >5_x000D_
<input type="radio" onchange="r('b2')"   class="radioID2" name="b2" value="6">6

For this example you really should just use an outer join.

declare
begin
  FOR attr_rec IN ( 
    select attr 
    from USER_TABLE u 
    left outer join attribute_table a 
    on ( u.USERTYPE = 'X' and a.user_id = u.id ) 
  ) LOOP
    <process records> 
    <if primary key of attribute_table is null 
     then the attribute does not exist for this user.>
  END LOOP;
END;

You need to examine (put a breakpoint on / Quick Watch) the Request object in the Page_Load method of your Test.aspx.cs file.

It's probably a stylistic preference more than anything. I just checked PEP 8 and didn't see any mention of single versus double quotes.

I prefer single quotes because its only one keystroke instead of two. That is, I don't have to mash the shift key to make single quote.

You can use the subprocess package with the code as below:

import subprocess
cmdCommand = "python test.py"   #specify your cmd command
process = subprocess.Popen(cmdCommand.split(), stdout=subprocess.PIPE)
output, error = process.communicate()
print output

eval is not an acceptable practice if your directory names can be generated by untrusted sources. See BashFAQ #48 for more on why eval should not be used, and BashFAQ #50 for more on the root cause of this problem and its proper solutions, some of which are touched on below:

If you need to build up your commands over time, use arrays:

tar_cmd=( tar cv "$directory" )
split_cmd=( split -b 1024m - "$backup_file" )
encrypt_cmd=( openssl des3 -salt )
"${tar_cmd[@]}" | "${encrypt_cmd[@]}" | "${split_cmd[@]}"

Alternately, if this is just about defining your commands in one central place, use functions:

tar_cmd() { tar cv "$directory"; }
split_cmd() { split -b 1024m - "$backup_file"; }
encrypt_cmd() { openssl des3 -salt; }
tar_cmd | split_cmd | encrypt_cmd

I found comment of @Artyom useful but unfortunately he has not posted an answer.

This is the short version, in my opinion best version, of the accepted answer;

ls *.config -rec | %{$f=$_; (gc $f.PSPath) | %{$_ -replace "Dev", "Demo"} | sc $f.PSPath}

SELECT * FROM table WHERE field1 NOT LIKE '%$x%'; (Make sure you escape $x properly beforehand to avoid SQL injection)

Edit: NOT IN does something a bit different - your question isn't totally clear so pick which one to use. LIKE 'xxx%' can use an index. LIKE '%xxx' or LIKE '%xxx%' can't.

I know that this question is years old, but I think it would useful for people like me to have a more complete updated answer that also works for const overloaded methods such as std::vector<>::begin.

Based on that answer and that answer from my follow up question, here's a more complete answer. Note that this will only work with C++11 and higher.

#include <iostream>
#include <vector>

class EmptyClass{};

template <typename T>
class has_begin
{
    private:
    has_begin() = delete;
    
    struct one { char x[1]; };
    struct two { char x[2]; };

    template <typename C> static one test( decltype(void(std::declval<C &>().begin())) * ) ;
    template <typename C> static two test(...);    

public:
    static constexpr bool value = sizeof(test<T>(0)) == sizeof(one);
};
    
int main(int argc, char *argv[])
{
    std::cout << std::boolalpha;
    std::cout << "vector<int>::begin() exists: " << has_begin<std::vector<int>>::value << std::endl;
    std::cout << "EmptyClass::begin() exists: " << has_begin<EmptyClass>::value << std::endl;
    return 0;
}

Or the shorter version:

#include <iostream>
#include <vector>

class EmptyClass{};

template <typename T, typename = void>
struct has_begin : std::false_type {};

template <typename T>
struct has_begin<T, decltype(void(std::declval<T &>().begin()))> : std::true_type {};

int main(int argc, char *argv[])
{
    std::cout << std::boolalpha;
    std::cout << "vector<int>::begin() exists: " << has_begin<std::vector<int>>::value << std::endl;
    std::cout << "EmptyClass exists: " << has_begin<EmptyClass>::value << std::endl;
}

Note that here a complete sample call must be provided. This means that if we tested for the resize method's existence then we would have put resize(0).

Deep magic explanation:

The first answer posted of this question used test( decltype(&C::helloworld) ); however this is problematic when the method it is testing is ambiguous due const overloading, thus making the substitution attempt fail.

To solve this ambiguity we use a void statement which can take any parameters because it is always translated into a noop and thus the ambiguity is nullified and the call is valid as long as the method exists:

has_begin<T, decltype(void(std::declval<T &>().begin()))>

Here's what's happening in order: We use std::declval<T &>() to create a callable value for which begin can then be called. After that the value of begin is passed as a parameter to a void statement. We then retrieve the type of that void expression using the builtin decltype so that it can be used as a template type argument. If begin doesn't exist then the substitution is invalid and as per SFINAE the other declaration is used instead.

Best way is to handle this in an Ant script. You can create 2 different tasks for the 2 jar files. Specify class A as the main class in the manifst file for the first jar. similarly specify class B as the main class in the manifest file for the second jar.

you can easily run the Ant tasks from Netbeans.

Sure. Just rename the branch locally, push the new branch, and push a deletion of the old.

The only real issue is that other users of the repository won't have local tracking branches renamed.

You can create declare a public interface with a function declaration in the fragment and implement the interface in the activity. Then you can call the function from the fragment.

You can find some technical comparison on npmcompare

Comparing browserify vs. grunt vs. gulp vs. webpack

As you can see webpack is very well maintained with a new version coming out every 4 days on average. But Gulp seems to have the biggest community of them all (with over 20K stars on Github) Grunt seems a bit neglected (compared to the others)

So if need to choose one over the other i would go with Gulp

Create a tensor on the GPU as follows:

$ python
>>> import torch
>>> print(torch.rand(3,3).cuda()) 

Do not quit, open another terminal and check if the python process is using the GPU using:

$ nvidia-smi

I think Microsoft guide for ASP.NET Identity is a good start.

https://docs.microsoft.com/en-us/aspnet/identity/overview/features-api/account-confirmation-and-password-recovery-with-aspnet-identity

Note:

If you do not use AccountController and wan't to reset your password, use Request.GetOwinContext().GetUserManager<ApplicationUserManager>();. If you dont have the same OwinContext you need to create a new DataProtectorTokenProvider like the one OwinContext uses. By default look at App_Start -> IdentityConfig.cs. Should look something like new DataProtectorTokenProvider<ApplicationUser>(dataProtectionProvider.Create("ASP.NET Identity"));.

Could be created like this:

Without Owin:

[HttpGet]
[AllowAnonymous]
[Route("testReset")]
public IHttpActionResult TestReset()
{
    var db = new ApplicationDbContext();
    var manager = new ApplicationUserManager(new UserStore<ApplicationUser>(db));
    var provider = new DpapiDataProtectionProvider("SampleAppName");
    manager.UserTokenProvider = new DataProtectorTokenProvider<ApplicationUser>(
        provider.Create("SampleTokenName"));

    var email = "[email protected]";

    var user = new ApplicationUser() { UserName = email, Email = email };

    var identityUser = manager.FindByEmail(email);

    if (identityUser == null)
    {
        manager.Create(user);
        identityUser = manager.FindByEmail(email);
    }

    var token = manager.GeneratePasswordResetToken(identityUser.Id);
    return Ok(HttpUtility.UrlEncode(token));
}

[HttpGet]
[AllowAnonymous]
[Route("testReset")]
public IHttpActionResult TestReset(string token)
{
    var db = new ApplicationDbContext();
    var manager = new ApplicationUserManager(new UserStore<ApplicationUser>(db));
    var provider = new DpapiDataProtectionProvider("SampleAppName");
    manager.UserTokenProvider = new DataProtectorTokenProvider<ApplicationUser>(
        provider.Create("SampleTokenName"));
    var email = "[email protected]";
    var identityUser = manager.FindByEmail(email);
    var valid = Task.Run(() => manager.UserTokenProvider.ValidateAsync("ResetPassword", token, manager, identityUser)).Result;
    var result = manager.ResetPassword(identityUser.Id, token, "TestingTest1!");
    return Ok(result);
}

With Owin:

[HttpGet]
[AllowAnonymous]
[Route("testResetWithOwin")]
public IHttpActionResult TestResetWithOwin()
{
    var manager = Request.GetOwinContext().GetUserManager<ApplicationUserManager>();

    var email = "[email protected]";

    var user = new ApplicationUser() { UserName = email, Email = email };

    var identityUser = manager.FindByEmail(email);

    if (identityUser == null)
    {
        manager.Create(user);
        identityUser = manager.FindByEmail(email);
    }

    var token = manager.GeneratePasswordResetToken(identityUser.Id);
    return Ok(HttpUtility.UrlEncode(token));
}

[HttpGet]
[AllowAnonymous]
[Route("testResetWithOwin")]
public IHttpActionResult TestResetWithOwin(string token)
{
    var manager = Request.GetOwinContext().GetUserManager<ApplicationUserManager>();

    var email = "[email protected]";
    var identityUser = manager.FindByEmail(email);
    var valid = Task.Run(() => manager.UserTokenProvider.ValidateAsync("ResetPassword", token, manager, identityUser)).Result;
    var result = manager.ResetPassword(identityUser.Id, token, "TestingTest1!");
    return Ok(result);
}

The DpapiDataProtectionProvider and DataProtectorTokenProvider needs to be created with the same name for a password reset to work. Using Owin for creating the password reset token and then creating a new DpapiDataProtectionProvider with another name won't work.

Code that I use for ASP.NET Identity:

Web.Config:

<add key="AllowedHosts" value="example.com,example2.com" />

AccountController.cs:

[Route("RequestResetPasswordToken/{email}/")]
[HttpGet]
[AllowAnonymous]
public async Task<IHttpActionResult> GetResetPasswordToken([FromUri]string email)
{
    if (!ModelState.IsValid)
        return BadRequest(ModelState);

    var user = await UserManager.FindByEmailAsync(email);
    if (user == null)
    {
        Logger.Warn("Password reset token requested for non existing email");
        // Don't reveal that the user does not exist
        return NoContent();
    }

    //Prevent Host Header Attack -> Password Reset Poisoning. 
    //If the IIS has a binding to accept connections on 80/443 the host parameter can be changed.
    //See https://security.stackexchange.com/a/170759/67046
    if (!ConfigurationManager.AppSettings["AllowedHosts"].Split(',').Contains(Request.RequestUri.Host)) {
            Logger.Warn($"Non allowed host detected for password reset {Request.RequestUri.Scheme}://{Request.Headers.Host}");
            return BadRequest();
    }

    Logger.Info("Creating password reset token for user id {0}", user.Id);

    var host = $"{Request.RequestUri.Scheme}://{Request.Headers.Host}";
    var token = await UserManager.GeneratePasswordResetTokenAsync(user.Id);
    var callbackUrl = $"{host}/resetPassword/{HttpContext.Current.Server.UrlEncode(user.Email)}/{HttpContext.Current.Server.UrlEncode(token)}";

    var subject = "Client - Password reset.";
    var body = "<html><body>" +
               "<h2>Password reset</h2>" +
               $"<p>Hi {user.FullName}, <a href=\"{callbackUrl}\"> please click this link to reset your password </a></p>" +
               "</body></html>";

    var message = new IdentityMessage
    {
        Body = body,
        Destination = user.Email,
        Subject = subject
    };

    await UserManager.EmailService.SendAsync(message);

    return NoContent();
}

[HttpPost]
[Route("ResetPassword/")]
[AllowAnonymous]
public async Task<IHttpActionResult> ResetPasswordAsync(ResetPasswordRequestModel model)
{
    if (!ModelState.IsValid)
        return NoContent();

    var user = await UserManager.FindByEmailAsync(model.Email);
    if (user == null)
    {
        Logger.Warn("Reset password request for non existing email");
        return NoContent();
    }            

    if (!await UserManager.UserTokenProvider.ValidateAsync("ResetPassword", model.Token, UserManager, user))
    {
        Logger.Warn("Reset password requested with wrong token");
        return NoContent();
    }

    var result = await UserManager.ResetPasswordAsync(user.Id, model.Token, model.NewPassword);

    if (result.Succeeded)
    {
        Logger.Info("Creating password reset token for user id {0}", user.Id);

        const string subject = "Client - Password reset success.";
        var body = "<html><body>" +
                   "<h1>Your password for Client was reset</h1>" +
                   $"<p>Hi {user.FullName}!</p>" +
                   "<p>Your password for Client was reset. Please inform us if you did not request this change.</p>" +
                   "</body></html>";

        var message = new IdentityMessage
        {
            Body = body,
            Destination = user.Email,
            Subject = subject
        };

        await UserManager.EmailService.SendAsync(message);
    }

    return NoContent();
}

public class ResetPasswordRequestModel
{
    [Required]
    [Display(Name = "Token")]
    public string Token { get; set; }

    [Required]
    [Display(Name = "Email")]
    public string Email { get; set; }

    [Required]
    [StringLength(100, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 10)]
    [DataType(DataType.Password)]
    [Display(Name = "New password")]
    public string NewPassword { get; set; }

    [DataType(DataType.Password)]
    [Display(Name = "Confirm new password")]
    [Compare("NewPassword", ErrorMessage = "The new password and confirmation password do not match.")]
    public string ConfirmPassword { get; set; }
}

To get a local timestamp using datetime library, Python 3.x

#wanted format: year-month-day hour:minute:seconds

from datetime import datetime

# get time now
dt = datetime.now()
# format it to a string
timeStamp = dt.strftime('%Y-%m-%d %H:%M:%S')

# print it to screen
print(timeStamp)

Simply null=True defines database should accept NULL values, on other hand blank=True defines on form validation this field should accept blank values or not(If blank=True it accept form without a value in that field and blank=False[default value] on form validation it will show This field is required error.

null=True/False related to database

blank=True/False related to form validation

AFAIK you cannot do it with linear layouts, you'll have to go for a RelativeLayout.

I am on Eclipse Neon, and after following the above steps, it still didnt work. import lombok.Data; was not being recognized.

After about an hour of looking around, i switched the version to 1.16.14 and it worked.

Now my thought is, whether the 1 hour spent will be a good investment for long term :-)

int number = 534;
int firstDigit = number/100; 

( / ) operator in java divide the numbers without considering the reminder so when we divide 534 by 100 , it gives us (5) .

but if you want to get the last number , you can use (%) operator

    int lastDigit = number%10; 

which gives us the reminder of the division , so 534%10 , will yield the number 4 .

Another best way to add bullet in any text view is stated below two steps:

First, create a drawable

<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">

    <!--set color of the bullet-->
   <solid 
       android:color="#666666"/> //set color of bullet

    <!--set size of the bullet-->
   <size 
       android:width="120dp"
        android:height="120dp"/>
</shape>

Then add this drawable in textview and set its pedding by using below properties

android:drawableStart="@drawable/bullet"
android:drawablePadding="10dp"

XML Layout: declare WebView instead of TextView

<WebView
 android:id="@+id/textContent"
 android:layout_width="fill_parent"
 android:layout_height="wrap_content" />

Java code: set text data to WebView

WebView view = (WebView) findViewById(R.id.textContent);
String text;
text = "<html><body><p align=\"justify\">";
text+= "This is the text will be justified when displayed!!!";
text+= "</p></body></html>";
view.loadData(text, "text/html", "utf-8");

This may Solve your problem. Its Fully worked for me.

To turn off those files, just add these lines to .vimrc (vim configuration file on unix based OS):

set nobackup       #no backup files
set nowritebackup  #only in case you don't want a backup file while editing
set noswapfile     #no swap files

If you want to make a new copy of an object or array, you must explicitly copy the properties of the object or the elements of the array, for example:

var arr1 = ['a','b','c'];
var arr2 = [];

for (var i=0; i < arr1.length; i++) {
   arr2[i] = arr1[i];
}

You can search for more information on Google about immutable primitive values and mutable object references.

import networkx as nx
import matplotlib.pyplot as plt

g = nx.DiGraph()
g.add_nodes_from([1,2,3,4,5])
g.add_edge(1,2)
g.add_edge(4,2)
g.add_edge(3,5)
g.add_edge(2,3)
g.add_edge(5,4)

nx.draw(g,with_labels=True)
plt.draw()
plt.show()

This is just simple how to draw directed graph using python 3.x using networkx. just simple representation and can be modified and colored etc. See the generated graph here.

Note: It's just a simple representation. Weighted Edges could be added like

g.add_edges_from([(1,2),(2,5)], weight=2)

and hence plotted again.

How about using the mysql client like this:

mysql -h <hostname> -u username -p <databasename> < file.sql

It looks like you're building DOM elements from strings. You just need to add some quotes around result.name:

'<input type="button" onClick="gotoNode(\'' + result.name + '\')" />'

You should really be doing this with proper DOM methods though.

var inputElement = document.createElement('input');
inputElement.type = "button"
inputElement.addEventListener('click', function(){
    gotoNode(result.name);
});

?document.body.appendChild(inputElement);?

Just be aware that if this is a loop or something, result will change before the event fires and you'd need to create an additional scope bubble to shadow the changing variable.

PHP < 7.3

If you don't know enough about the array (you're not sure whether the first key is foo or bar) then the array might well also be, maybe, empty.

So it would be best to check, especially if there is the chance that the returned value might be the boolean FALSE:

$value = empty($arr) ? $default : reset($arr);

The above code uses reset and so has side effects (it resets the internal pointer of the array), so you might prefer using array_slice to quickly access a copy of the first element of the array:

$value = $default;
foreach(array_slice($arr, 0, 1) as $value);

Assuming you want to get both the key and the value separately, you need to add the fourth parameter to array_slice:

foreach(array_slice($arr, 0, 1, true) as $key => $value);

To get the first item as a pair (key => value):

$item = array_slice($arr, 0, 1, true);

Simple modification to get the last item, key and value separately:

foreach(array_slice($arr, -1, 1, true) as $key => $value);

performance

If the array is not really big, you don't actually need array_slice and can rather get a copy of the whole keys array, then get the first item:

$key = count($arr) ? array_keys($arr)[0] : null;

If you have a very big array, though, the call to array_keys will require significant time and memory more than array_slice (both functions walk the array, but the latter terminates as soon as it has gathered the required number of items - which is one).

A notable exception is when you have the first key which points to a very large and convoluted object. In that case array_slice will duplicate that first large object, while array_keys will only grab the keys.

PHP 7.3+

PHP 7.3 onwards implements array_key_first() as well as array_key_last(). These are explicitly provided to access first and last keys efficiently without resetting the array's internal state as a side effect.

So since PHP 7.3 the first value of $array may be accessed with

$array[array_key_first($array)];

You still had better check that the array is not empty though, or you will get an error:

$firstKey = array_key_first($array);
if (null === $firstKey) {
    $value = "Array is empty"; // An error should be handled here
} else {
    $value = $array[$firstKey];
}

As you correctly point out, one can ReDim Preserve only the last dimension of an array (ReDim Statement on MSDN):

If you use the Preserve keyword, you can resize only the last array dimension and you can't change the number of dimensions at all. For example, if your array has only one dimension, you can resize that dimension because it is the last and only dimension. However, if your array has two or more dimensions, you can change the size of only the last dimension and still preserve the contents of the array

Hence, the first issue to decide is whether 2-dimensional array is the best data structure for the job. Maybe, 1-dimensional array is a better fit as you need to do ReDim Preserve?

Another way is to use jagged array as per Pieter Geerkens's suggestion. There is no direct support for jagged arrays in VB6. One way to code "array of arrays" in VB6 is to declare an array of Variant and make each element an array of desired type (String in your case). Demo code is below.

Yet another option is to implement Preserve part on your own. For that you'll need to create a copy of data to be preserved and then fill redimensioned array with it.

Option Explicit

Public Sub TestMatrixResize()
    Const MAX_D1 As Long = 2
    Const MAX_D2 As Long = 3

    Dim arr() As Variant
    InitMatrix arr, MAX_D1, MAX_D2
    PrintMatrix "Original array:", arr

    ResizeMatrix arr, MAX_D1 + 1, MAX_D2 + 1
    PrintMatrix "Resized array:", arr
End Sub

Private Sub InitMatrix(a() As Variant, n As Long, m As Long)
    Dim i As Long, j As Long
    Dim StringArray() As String

    ReDim a(n)
    For i = 0 To n
        ReDim StringArray(m)
        For j = 0 To m
            StringArray(j) = i * (m + 1) + j
        Next j
        a(i) = StringArray
    Next i
End Sub

Private Sub PrintMatrix(heading As String, a() As Variant)
    Dim i As Long, j As Long
    Dim s As String

    Debug.Print heading
    For i = 0 To UBound(a)
        s = ""
        For j = 0 To UBound(a(i))
            s = s & a(i)(j) & "; "
        Next j
        Debug.Print s
    Next i
End Sub

Private Sub ResizeMatrix(a() As Variant, n As Long, m As Long)
    Dim i As Long
    Dim StringArray() As String

    ReDim Preserve a(n)
    For i = 0 To n - 1
        StringArray = a(i)
        ReDim Preserve StringArray(m)
        a(i) = StringArray
    Next i
    ReDim StringArray(m)
    a(n) = StringArray
End Sub

100%-100px is the same

div.thediv {
  width: auto;
  margin-right:100px;
}

With jQuery:

$(window).resize(function(){
  $('.thediv').each(function(){
    $(this).css('width', $(this).parent().width()-100);
  })
});

Similar way is to use jQuery resize plugin

This is the way to find the object's index in array

    var myArray = [{  hello: 'world',
        foo: 'bar'
    },{
        hello: 'stevie',
        foo: 'baz'
    }];



    for (i = 0; i < myArray.length; i++) {
        if (myArray[i].hello === 'stevie') {
            alert('position: ' + i);
            return;
        }
    }

If you visit this link https://msdn.microsoft.com/library/ms748948%28v=vs.100%29.aspx#Window_Lifetime_Events and scroll down to Window Lifetime Events it will show you the event order.

Open:

1. SourceInitiated
2. Activated
3. Loaded
4. ContentRendered

Close:

1. Closing
2. Deactivated
3. Closed

I had the same problem because I set the following in Catalina.sh of my tomcat:

JAVA_OPTS="$JAVA_OPTS -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=9999" 

After removing it, my tomcat worked well.

Hope help you.

To merge any number of raw objects

function merge_obj(){
    foreach(func_get_args() as $a){
        $objects[]=(array)$a;
    }
    return (object)call_user_func_array('array_merge', $objects);
}

Just aggregating the answers and expanding on the basics. Here are three options:

1) Hide Code (individual chunk)

We can include echo=FALSE in the chunk header:

```{r echo=FALSE}
plot(cars)
```

2) Hide Chunks (globally).

We can change the default behaviour of knitr using the knitr::opts_chunk$set function. We call this at the start of the document and include include=FALSE in the chunk header to suppress any output:

---
output: html_document
---

```{r include = FALSE}
knitr::opts_chunk$set(echo=FALSE)
```

```{r}
plot(cars)
```

3) Collapsed Code Chunks

For HTML outputs, we can use code folding to hide the code in the output file. It will still include the code but can only be seen once a user clicks on this. You can read about this further here.

---
output:
  html_document:
    code_folding: "hide"
---


```{r}
plot(cars)
```

I used this lmp function quite a lot of times.

And at one point I decided to add new features to enhance data analysis. I am not in expert in R or statistics but people are usually looking at different information of a linear regression :

• p-value
• a and b
• r²
• and of course the aspect of the point distribution

Let's have an example. You have here

Here a reproducible example with different variables:

Ex<-structure(list(X1 = c(-36.8598, -37.1726, -36.4343, -36.8644, 
-37.0599, -34.8818, -31.9907, -37.8304, -34.3367, -31.2984, -33.5731
), X2 = c(64.26, 63.085, 66.36, 61.08, 61.57, 65.04, 72.69, 63.83, 
67.555, 76.06, 68.61), Y1 = c(493.81544, 493.81544, 494.54173, 
494.61364, 494.61381, 494.38717, 494.64122, 493.73265, 494.04246, 
494.92989, 494.98384), Y2 = c(489.704166, 489.704166, 490.710962, 
490.653212, 490.710612, 489.822928, 488.160904, 489.747776, 490.600579, 
488.946738, 490.398958), Y3 = c(-19L, -19L, -19L, -23L, -30L, 
-43L, -43L, -2L, -58L, -47L, -61L)), .Names = c("X1", "X2", "Y1", 
"Y2", "Y3"), row.names = c(NA, 11L), class = "data.frame")


library(reshape2)
library(ggplot2)
Ex2<-melt(Ex,id=c("X1","X2"))
colnames(Ex2)[3:4]<-c("Y","Yvalue")
Ex3<-melt(Ex2,id=c("Y","Yvalue"))
colnames(Ex3)[3:4]<-c("X","Xvalue")

ggplot(Ex3,aes(Xvalue,Yvalue))+
          geom_smooth(method="lm",alpha=0.2,size=1,color="grey")+
          geom_point(size=2)+
          facet_grid(Y~X,scales='free')


#Use the lmp function

lmp <- function (modelobject) {
  if (class(modelobject) != "lm") stop("Not an object of class 'lm' ")
  f <- summary(modelobject)$fstatistic
    p <- pf(f[1],f[2],f[3],lower.tail=F)
    attributes(p) <- NULL
    return(p)
    }

# create function to extract different informations from lm

lmtable<-function (var1,var2,data,signi=NULL){
  #var1= y data : colnames of data as.character, so "Y1" or c("Y1","Y2") for example
  #var2= x data : colnames of data as.character, so "X1" or c("X1","X2") for example
  #data= data in dataframe, variables in columns
  # if signi TRUE, round p-value with 2 digits and add *** if <0.001, ** if < 0.01, * if < 0.05.

  if (class(data) != "data.frame") stop("Not an object of class 'data.frame' ")
  Tabtemp<-data.frame(matrix(NA,ncol=6,nrow=length(var1)*length(var2)))
  for (i in 1:length(var2))
       {
  Tabtemp[((length(var1)*i)-(length(var1)-1)):(length(var1)*i),1]<-var1
  Tabtemp[((length(var1)*i)-(length(var1)-1)):(length(var1)*i),2]<-var2[i]
  colnames(Tabtemp)<-c("Var.y","Var.x","p-value","a","b","r^2")

  for (n in 1:length(var1))
  {
  Tabtemp[(((length(var1)*i)-(length(var1)-1))+n-1),3]<-lmp(lm(data[,var1[n]]~data[,var2[i]],data))

  Tabtemp[(((length(var1)*i)-(length(var1)-1))+n-1),4]<-coef(lm(data[,var1[n]]~data[,var2[i]],data))[1]

  Tabtemp[(((length(var1)*i)-(length(var1)-1))+n-1),5]<-coef(lm(data[,var1[n]]~data[,var2[i]],data))[2]

  Tabtemp[(((length(var1)*i)-(length(var1)-1))+n-1),6]<-summary(lm(data[,var1[n]]~data[,var2[i]],data))$r.squared
  }
  }

  signi2<-data.frame(matrix(NA,ncol=3,nrow=nrow(Tabtemp)))
  signi2[,1]<-ifelse(Tabtemp[,3]<0.001,paste0("***"),ifelse(Tabtemp[,3]<0.01,paste0("**"),ifelse(Tabtemp[,3]<0.05,paste0("*"),paste0(""))))
  signi2[,2]<-round(Tabtemp[,3],2)
  signi2[,3]<-paste0(format(signi2[,2],digits=2),signi2[,1])

  for (l in 1:nrow(Tabtemp))
    {
  Tabtemp$"p-value"[l]<-ifelse(is.null(signi),
         Tabtemp$"p-value"[l],
         ifelse(isTRUE(signi),
                paste0(signi2[,3][l]),
                Tabtemp$"p-value"[l]))
  }

   Tabtemp
}

# ------- EXAMPLES ------

lmtable("Y1","X1",Ex)
lmtable(c("Y1","Y2","Y3"),c("X1","X2"),Ex)
lmtable(c("Y1","Y2","Y3"),c("X1","X2"),Ex,signi=TRUE)

There is certainly a faster solution than this function but it works.

The writer of the database probably did a

sql = "SELECT * FROM STUDENTS WHERE (STUDENT_NAME = '" + student_name + "') AND other stuff";
execute(sql);

If student_name is the one given, that does the selection with the name "Robert" and then drops the table. The "-- " part changes the rest of the given query into a comment.

You don't have to bind parameters if you use query builder or eloquent ORM. However, if you use DB::raw(), ensure that you binding the parameters.

Try the following:

$array = array(1,2,3);       $query = DB::table('offers');             $query->select('id', 'business_id', 'address_id', 'title', 'details', 'value', 'total_available', 'start_date', 'end_date', 'terms', 'type', 'coupon_code', 'is_barcode_available', 'is_exclusive', 'userinformations_id', 'is_used');             $query->leftJoin('user_offer_collection', function ($join) use ($array)             {                 $join->on('user_offer_collection.offers_id', '=', 'offers.id')                       ->whereIn('user_offer_collection.user_id', $array);             });       $query->get(); 

I use the cocoa pods installation from the bundle.

• Install bundler
• Add Gemfile in root of project
• Add required gems in Gemfile
• bundle install
• and then always use bundle exec pod install

If you don't know how-tos of one of these steps, searching on google will help :)

A simple, easy, hands-on, way to get you out of hot water, especially if you're not so comfortable with git:

1. View the log of your file

   git log myFile.js

   commit 1023057173029091u23f01w276931f7f42595f84f Author: kmiklas Date: Tue Aug 7 09:29:34 2018 -0400

   JIRA-12345 - Refactor with new architecture.

2. Note hash of file:

   1023057173029091u23f01w276931f7f42595f84f

3. Show the file using the hash. Make sure it's what you want:

   git show 1023057173029091u23f01w276931f7f42595f84f:./myFile.js

4. Redirect file to a local copy

   git show 1023057173029091u23f01w276931f7f42595f84f:./myFile.js > myFile.07aug2018.js

5. Back up your current file.

   cp myFile.js myFile.bak.js

6. Open both files in your favorite text editor.

   vim myFile.js
   vim myFile.07aug2018.js

7. Copy n' paste code from myFile.07aug2018.js to myFile.js, and save.

8. Commit and push myFile.js

9. Again view the log, and confirm that your file is properly in place.

10. Tell your clients to pull the latest, happily watch it work with the old version in place.

Not the sexiest, or most git-centric solution, and definitely a "manual" reset/reversion, but it works. It requires minimal knowledge of git, and doesn't disturb the commit history.

A little more complicated lexsort example - descending on the 1st column, secondarily ascending on the 2nd. The tricks with lexsort are that it sorts on rows (hence the .T), and gives priority to the last.

In [120]: b=np.array([[1,2,1],[3,1,2],[1,1,3],[2,3,4],[3,2,5],[2,1,6]])
In [121]: b
Out[121]: 
array([[1, 2, 1],
       [3, 1, 2],
       [1, 1, 3],
       [2, 3, 4],
       [3, 2, 5],
       [2, 1, 6]])
In [122]: b[np.lexsort(([1,-1]*b[:,[1,0]]).T)]
Out[122]: 
array([[3, 1, 2],
       [3, 2, 5],
       [2, 1, 6],
       [2, 3, 4],
       [1, 1, 3],
       [1, 2, 1]])

In MySQL a special column function GROUP_CONCAT can be used:

SELECT GROUP_CONCAT(COLUMN_NAME)
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = 'computers' AND
    TABLE_NAME='Laptop' AND
    COLUMN_NAME NOT IN ('code')
ORDER BY ORDINAL_POSITION;

It should be mentioned that the information schema in MySQL covers all database server, not certain databases. That is why if different databases contains tables with identical names, search condition of the WHERE clause should specify the schema name: TABLE_SCHEMA='computers'.

Strings are concatenated with the CONCAT function in MySQL. The final solution of our problem can be expressed in MySQL as:

SELECT CONCAT('SELECT ',
(SELECT GROUP_CONCAT(COLUMN_NAME)
 FROM INFORMATION_SCHEMA.COLUMNS
 WHERE TABLE_SCHEMA='computers' AND
    TABLE_NAME='Laptop' AND
        COLUMN_NAME NOT IN ('code')
 ORDER BY ORDINAL_POSITION
), ' FROM Laptop');

http://www.sql-ex.ru/help/select20.php

You can turn the color picker into an application by following the guide here:

http://hints.macworld.com/article.php?story=20060408050920158

From the guide:

Simply fire up AppleScript (Applications -> AppleScript Editor) and enter this text:

choose color

Now, save it as an application (File -> Save As, and set the File Format pop-up to Application), and you're done

I was having the exact same problem. I considered the answer @Snarfblam provided; however, if you read the documentation on MSDN, the ProcessCMDKey method is meant to override key events for menu items in an application.

I recently stumbled across this article from microsoft, which looks quite promising: http://msdn.microsoft.com/en-us/library/system.windows.forms.control.previewkeydown.aspx. According to microsoft, the best thing to do is set e.IsInputKey=true; in the PreviewKeyDown event after detecting the arrow keys. Doing so will fire the KeyDown event.

This worked quite well for me and was less hack-ish than overriding the ProcessCMDKey.

The accepted answers really limit what you can do with your code. For example, you would not be able to search an array of Object Ids by using the equals method. Instead, it would make more sense to always cast to string and compare the keys.

Here's an example answer in case if you need to use indexOf() to check within an array of references for a specific id. assume query is a query you are executing, assume someModel is a mongo model for the id you are looking for, and finally assume results.idList is the field you are looking for your object id in.

query.exec(function(err,results){
   var array = results.idList.map(function(v){ return v.toString(); });
   var exists = array.indexOf(someModel._id.toString()) >= 0;
   console.log(exists);
});

A simple way to do it without the use of such a complicated draw statement:

    //Make a backup so that we can reset our graphics object after using it.
    AffineTransform backup = g2d.getTransform();
    //rx is the x coordinate for rotation, ry is the y coordinate for rotation, and angle
    //is the angle to rotate the image. If you want to rotate around the center of an image,
    //use the image's center x and y coordinates for rx and ry.
    AffineTransform a = AffineTransform.getRotateInstance(angle, rx, ry);
    //Set our Graphics2D object to the transform
    g2d.setTransform(a);
    //Draw our image like normal
    g2d.drawImage(image, x, y, null);
    //Reset our graphics object so we can draw with it again.
    g2d.setTransform(backup);

You can use the ThenBy and ThenByDescending extension methods:

foobarList.OrderBy(x => x.Foo).ThenBy( x => x.Bar)

The ? : operator in Java

In Java you might write:

if (a > b) {
  max = a;
}
else {
  max = b;
}

Setting a single variable to one of two states based on a single condition is such a common use of if-else that a shortcut has been devised for it, the conditional operator, ?:. Using the conditional operator you can rewrite the above example in a single line like this:

max = (a > b) ? a : b;

(a > b) ? a : b; is an expression which returns one of two values, a or b. The condition, (a > b), is tested. If it is true the first value, a, is returned. If it is false, the second value, b, is returned. Whichever value is returned is dependent on the conditional test, a > b. The condition can be any expression which returns a boolean value.

Edit: This library is now available through Bower and NPM. See github repo for details.

UPDATED ANSWER:

• Live example: CodePen
• Latest version: Github repository
• Don't like Bootstrap? Check: Foundation demo and Custom framework demos
• Have a problem? Open an issue

Disclaimer: I'm the author.

Here's a few things you can do using the latest version (Responsive Bootstrap Toolkit 2.5.0):

// Wrap everything in an IIFE
(function($, viewport){

    // Executes only in XS breakpoint
    if( viewport.is('xs') ) {
        // ...
    }

    // Executes in SM, MD and LG breakpoints
    if( viewport.is('>=sm') ) {
        // ...
    }

    // Executes in XS and SM breakpoints
    if( viewport.is('<md') ) {
        // ...
    }

    // Execute only after document has fully loaded
    $(document).ready(function() {
        if( viewport.is('xs') ) {
            // ...
        }
    });

    // Execute code each time window size changes
    $(window).resize(
        viewport.changed(function() {
            if( viewport.is('xs') ) {
                // ...
            }
        })
    ); 

})(jQuery, ResponsiveBootstrapToolkit);

As of version 2.3.0, you don't need the four <div> elements mentioned below.

ORIGINAL ANSWER:

I don't think you need any huge script or library for that. It's a fairly simple task.

Insert the following elements just before </body>:

<div class="device-xs visible-xs"></div>
<div class="device-sm visible-sm"></div>
<div class="device-md visible-md"></div>
<div class="device-lg visible-lg"></div>

These 4 divs allow you check for currently active breakpoint. For an easy JS detection, use the following function:

function isBreakpoint( alias ) {
    return $('.device-' + alias).is(':visible');
}

Now to perform a certain action only on the smallest breakpoint you could use:

if( isBreakpoint('xs') ) {
    $('.someClass').css('property', 'value');
}

Detecting changes after DOM ready is also fairly simple. All you need is a lightweight window resize listener like this one:

var waitForFinalEvent = function () {
      var b = {};
      return function (c, d, a) {
        a || (a = "I am a banana!");
        b[a] && clearTimeout(b[a]);
        b[a] = setTimeout(c, d)
      }
    }();

var fullDateString = new Date();

Once you're equipped with it, you can start listening for changes and execute breakpoint-specific functions like so:

$(window).resize(function () {
    waitForFinalEvent(function(){

        if( isBreakpoint('xs') ) {
            $('.someClass').css('property', 'value');
        }

    }, 300, fullDateString.getTime())
});

Apparently YouTube constantly polls for Google Cast scripts even if the extension isn't installed.

From one commenter:

... it appears that Chrome attempts to get cast_sender.js on pages that have YouTube content. I'm guessing when Chrome sees media that it can stream it attempts to access the Chromecast extension. When the extension isn't present, the error is thrown.

Read more

The only solution I've come across is to install the Google Cast extension, whether you need it or not. You may then hide the toolbar button.

For more information and updates, see this SO question. Here's the official issue.

You could make use of expect (man expect comes with examples).

After installing packages from given answers, i still get some errors then i install following package and it works fine:

• php-xml

for specific version:

• php7.0-xml

command for php 7.0

sudo apt-get install php7.0-xml

in some cases you also needs a package php7.0-common . install it same as above command.

subprocess.call will avoid problems with having to deal with quoting conventions of various shells. It accepts a list, rather than a string, so arguments are more easily delimited. i.e.

import subprocess
subprocess.call(['C:\\Temp\\a b c\\Notepad.exe', 'C:\\test.txt'])

display: inline-block; will prevent break between the words in a list item

 li {
    display: inline-block;
 }

A much more accurate SQL STATEMENT

SELECT  a.tablespace_name,
    ROUND (((c.BYTES - NVL (b.BYTES, 0)) / c.BYTES) * 100,2) percentage_used,
    c.BYTES / 1024 / 1024 space_allocated,
    ROUND (c.BYTES / 1024 / 1024 - NVL (b.BYTES, 0) / 1024 / 1024,2) space_used,
    ROUND (NVL (b.BYTES, 0) / 1024 / 1024, 2) space_free, 
    c.DATAFILES
  FROM dba_tablespaces a,
       (    SELECT   tablespace_name, 
                  SUM (BYTES) BYTES
           FROM   dba_free_space
       GROUP BY   tablespace_name
       ) b,
      (    SELECT   COUNT (1) DATAFILES, 
                  SUM (BYTES) BYTES, 
                  tablespace_name
           FROM   dba_data_files
       GROUP BY   tablespace_name
    ) c
  WHERE b.tablespace_name(+) = a.tablespace_name 
    AND c.tablespace_name(+) = a.tablespace_name
ORDER BY NVL (((c.BYTES - NVL (b.BYTES, 0)) / c.BYTES), 0) DESC;

android.provider.Telephony.SMS_RECEIVED has a capital T, and yours in the manifest does not.

Please bear in mind that this Intent action is not documented.

The curl installed by default in Debian supports HTTPS since a great while back. (a long time ago there were two separate packages, one with and one without SSL but that's not the case anymore)

OPTIONS /path

You can send an OPTIONS request with curl like this:

curl -i -X OPTIONS http://example.org/path

You may also use -v instead of -i to see more output.

OPTIONS *

To send a plain * (instead of the path, see RFC 7231) with the OPTIONS method, you need curl 7.55.0 or later as then you can run a command line like:

curl -i --request-target "*" -X OPTIONS http://example.org

public class ReadFileUsingFileInputStream {

/**
* @param args
*/
static int ch;

public static void main(String[] args) {
    File file = new File("C://text.txt");
    StringBuffer stringBuffer = new StringBuffer("");
    try {
        FileInputStream fileInputStream = new FileInputStream(file);
        try {
            while((ch = fileInputStream.read())!= -1){
                stringBuffer.append((char)ch);  
            }
        }
        catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    System.out.println("File contents :");
    System.out.println(stringBuffer);
    }
}

XMLBlueprint 7.5 can do the following: - generate sample xml from dtd - generate sample xml from relax ng schema - generate sample xml from xml schema

I would detect red rectangles: RGB -> HSV, filter red -> binary image, close (dilate then erode, known as imclose in matlab)

Then look through rectangles from largest to smallest. Rectangles that have smaller rectangles in a known position/scale can both be removed (assuming bottle proportions are constant, the smaller rectangle would be a bottle cap).

This would leave you with red rectangles, then you'll need to somehow detect the logos to tell if they're a red rectangle or a coke can. Like OCR, but with a known logo?

As far as the http verb is concerned the WebRequest might be easier. You could go for something like:

    WebRequest r = WebRequest.Create("http://some.url");
    r.Method = "POST";
    using (var s = r.GetResponse().GetResponseStream())
    {
        using (var reader = new StreamReader(r, FileMode.Open))
        {
            var content = reader.ReadToEnd();
        }
    }

Obviously this lacks exception handling and writing the request body (for which you can use r.GetRequestStream() and write it like a regular stream, but I hope it may be of some help.

Use String.Format() with multiple parameters.

using System;

namespace TimeSpanFormat
{
    class Program
    {
        static void Main(string[] args)
        {
            TimeSpan dateDifference = new TimeSpan(0, 0, 6, 32, 445);
            string formattedTimeSpan = string.Format("{0:D2} hrs, {1:D2} mins, {2:D2} secs", dateDifference.Hours, dateDifference.Minutes, dateDifference.Seconds);
            Console.WriteLine(formattedTimeSpan);
        }
    }
}

The urllib2.HTTPError exception does not contain a getcode() method. Use the code attribute instead.

I'm not saying that there's anything wrong with your question or the answer given, but maybe you'd like to know about the wonderful tool that is Hoogle to save yourself time in the future: With Hoogle, you can search for standard library functions that match a given signature. So, not knowing anything about !!, in your case you might search for "something that takes an Int and a list of whatevers and returns a single such whatever", namely

Int -> [a] -> a

Lo and behold, with !! as the first result (although the type signature actually has the two arguments in reverse compared to what we searched for). Neat, huh?

Also, if your code relies on indexing (instead of consuming from the front of the list), lists may in fact not be the proper data structure. For O(1) index-based access there are more efficient alternatives, such as arrays or vectors.

The problem is that the file system on that disk was created when the disk had a certain geometry and you must modify it (while your OS is running on it).

So yes, making the virtual hard disk bigger is not a big issue. The issue is to make the new space available to your OS. To do that, you need tools like parted (Linux) or Partition Magic (Windows).

For selecting only specific columns out of multiple columns for a given value in Pandas:

select col_name1, col_name2 from table where column_name = some_value.

Options:

df.loc[df['column_name'] == some_value][[col_name1, col_name2]]

or

df.query['column_name' == 'some_value'][[col_name1, col_name2]]

Use the after method on the Tk object:

from tkinter import *

root = Tk()

def task():
    print("hello")
    root.after(2000, task)  # reschedule event in 2 seconds

root.after(2000, task)
root.mainloop()

Here's the declaration and documentation for the after method:

def after(self, ms, func=None, *args):
    """Call function once after given time.

    MS specifies the time in milliseconds. FUNC gives the
    function which shall be called. Additional parameters
    are given as parameters to the function call.  Return
    identifier to cancel scheduling with after_cancel."""

all answers are correct, but I want to mention that time delta accepts negative arguments.

>>> from datetime import date, timedelta
>>> yesterday = date.today() + timedelta(days=-1)
>>> print(yesterday.strftime('%m%d%y')) #for python2 remove parentheses 

Now we can easily do this using the aspect-ratio ^ref property

.container {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)); /* 3 columns */
  grid-gap: 10px;
}

.container>* {
  aspect-ratio: 1 / 1; /* a square ratio */
  border: 1px solid;
  
  /* center content */
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

img {
  max-width: 100%;
  display: block;
}

<div class="container">
  <div> some content here </div>
  <div><img src="https://picsum.photos/id/25/400/400"></div>
  <div>
    <h1>a title</h1>
  </div>
  <div>more and more content <br>here</div>
  <div>
    <h2>another title</h2>
  </div>
  <div><img src="https://picsum.photos/id/104/400/400"></div>
</div>

Also like below where we can have a variable number of columns

.container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  grid-gap: 10px;
}

.container>* {
  aspect-ratio: 1 / 1; /* a square ratio */
  border: 1px solid;
  
  /* center content */
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

img {
  max-width: 100%;
  display: block;
}

<div class="container">
  <div> some content here </div>
  <div><img src="https://picsum.photos/id/25/400/400"></div>
  <div>
    <h1>a title</h1>
  </div>
  <div>more and more content <br>here</div>
  <div>
    <h2>another title</h2>
  </div>
  <div><img src="https://picsum.photos/id/104/400/400"></div>
  <div>more and more content <br>here</div>
  <div>
    <h2>another title</h2>
  </div>
  <div><img src="https://picsum.photos/id/104/400/400"></div>
</div>

Summary

As mentioned by Ignacio, it updates your .config for you after you update the kernel source, e.g. with git pull.

It tries to keep your existing options.

Having a script for that is helpful because:

• new options may have been added, or old ones removed

• the kernel's Kconfig configuration format has options that:

  • imply one another via select
  • depend on another via depends

  Those option relationships make manual config resolution even harder.

Let's modify .config manually to understand how it resolves configurations

First generate a default configuration with:

make defconfig

Now edit the generated .config file manually to emulate a kernel update and run:

make oldconfig

to see what happens. Some conclusions:

1. Lines of type:

   # CONFIG_XXX is not set
   

   are not mere comments, but actually indicate that the parameter is not set.

   For example, if we remove the line:

   # CONFIG_DEBUG_INFO is not set
   

   and run make oldconfig, it will ask us:

   Compile the kernel with debug info (DEBUG_INFO) [N/y/?] (NEW)
   

   When it is over, the .config file will be updated.

   If you change any character of the line, e.g. to # CONFIG_DEBUG_INFO, it does not count.

2. Lines of type:

   # CONFIG_XXX is not set
   

   are always used for the negation of a property, although:

   CONFIG_XXX=n
   

   is also understood as the negation.

   For example, if you remove # CONFIG_DEBUG_INFO is not set and answer:

   Compile the kernel with debug info (DEBUG_INFO) [N/y/?] (NEW)
   

   with N, then the output file contains:

   # CONFIG_DEBUG_INFO is not set
   

   and not:

   CONFIG_DEBUG_INFO=n
   

   Also, if we manually modify the line to:

   CONFIG_DEBUG_INFO=n
   

   and run make oldconfig, then the line gets modified to:

   # CONFIG_DEBUG_INFO is not set
   

   without oldconfig asking us.

3. Configs whose dependencies are not met, do not appear on the .config. All others do.

   For example, set:

   CONFIG_DEBUG_INFO=y
   

   and run make oldconfig. It will now ask us for: DEBUG_INFO_REDUCED, DEBUG_INFO_SPLIT, etc. configs.

   Those properties did not appear on the defconfig before.

   If we look under lib/Kconfig.debug where they are defined, we see that they depend on DEBUG_INFO:

   config DEBUG_INFO_REDUCED
       bool "Reduce debugging information"
       depends on DEBUG_INFO
   

   So when DEBUG_INFO was off, they did not show up at all.

4. Configs which are selected by turned on configs are automatically set without asking the user.

   For example, if CONFIG_X86=y and we remove the line:

   CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
   

   and run make oldconfig, the line gets recreated without asking us, unlike DEBUG_INFO.

   This happens because arch/x86/Kconfig contains:

   config X86
       def_bool y
       [...]
       select ARCH_MIGHT_HAVE_PC_PARPORT
   

   and select forces that option to be true. See also: https://unix.stackexchange.com/questions/117521/select-vs-depends-in-kernel-kconfig

5. Configs whose constraints are not met are asked for.

   For example, defconfig had set:

   CONFIG_64BIT=y
   CONFIG_RCU_FANOUT=64
   

   If we edit:

   CONFIG_64BIT=n
   

   and run make oldconfig, it will ask us:

   Tree-based hierarchical RCU fanout value (RCU_FANOUT) [32] (NEW)
   

   This is because RCU_FANOUT is defined at init/Kconfig as:

   config RCU_FANOUT
       int "Tree-based hierarchical RCU fanout value"
       range 2 64 if 64BIT
       range 2 32 if !64BIT
   

   Therefore, without 64BIT, the maximum value is 32, but we had 64 set on the .config, which would make it inconsistent.

Bonuses

make olddefconfig sets every option to their default value without asking interactively. It gets run automatically on make to ensure that the .config is consistent in case you've modified it manually like we did. See also: https://serverfault.com/questions/116299/automatically-answer-defaults-when-doing-make-oldconfig-on-a-kernel-tree

make alldefconfig is like make olddefconfig, but it also accepts a config fragment to merge. This target is used by the merge_config.sh script: https://stackoverflow.com/a/39440863/895245

And if you want to automate the .config modification, that is not too simple: How do you non-interactively turn on features in a Linux kernel .config file?

This solution is the combination of @Peter's solution for deleting multiple occurences and @chyno solution for removing first occurence. That's it what I'm using.

/**
 * @param array $haystack
 * @param mixed $value
 * @param bool $only_first
 * @return array
 */
function array_remove_values(array $haystack, $needle = null, $only_first = false)
{
    if (!is_bool($only_first)) { throw new Exception("The parameter 'only_first' must have type boolean."); }
    if (empty($haystack)) { return $haystack; }

    if ($only_first) { // remove the first found value
        if (($pos = array_search($needle, $haystack)) !== false) {
            unset($haystack[$pos]);
        }
    } else { // remove all occurences of 'needle'
        $haystack = array_diff($haystack, array($needle));
    }

    return $haystack;
}

Also have a look here: PHP array delete by value (not key)

This is quite simple do The inner join and then group by user_id and use max aggregate function in payment_id assuming your table being user and payment query can be

select user.id, max(payment.id) from user inner join payment on (user.id = payment.user_id) group by user.id

1. If you want the password prompt to go away then use key based authentication (described here).

2. To run commands remotely over ssh you have to give them as an argument to ssh, like the following:

root@host:~ # ssh root@www 'ps -ef | grep apache | grep -v grep | wc -l'

Way later but still worth mentioning is that you can also use variables to output values in the SET clause of an UPDATE or in the fields of a SELECT;

DECLARE @val1 int;
DECLARE @val2 int;
UPDATE [dbo].[PortalCounters_TEST]
SET @val1 = NextNum, @val2 = NextNum = NextNum + 1
WHERE [Condition] = 'unique value'
SELECT @val1, @val2

In the example above @val1 has the before value and @val2 has the after value although I suspect any changes from a trigger would not be in val2 so you'd have to go with the output table in that case. For anything but the simplest case, I think the output table will be more readable in your code as well.

One place this is very helpful is if you want to turn a column into a comma-separated list;

DECLARE @list varchar(max) = '';
DECLARE @comma varchar(2) = '';
SELECT @list = @list + @comma + County, @comma = ', ' FROM County
print @list

The most basic example would be:

// get DOM elements_x000D_
var checkbox = document.querySelector('input'),_x000D_
    button = document.querySelector('button');_x000D_
_x000D_
// bind "cilck" event on the button_x000D_
button.addEventListener('click', toggleCheckbox);_x000D_
_x000D_
// when clicking the button, toggle the checkbox_x000D_
function toggleCheckbox(){_x000D_
  checkbox.checked = !checkbox.checked;_x000D_
};

<input type="checkbox">_x000D_
<button>Toggle checkbox</button>