Your variable declarations and their scope are correct. The problem you are facing is that the first AJAX request may take a little bit time to finish. Therefore, the second URL will be filled with the value of sID before the its content has been set. You have to remember that AJAX request are normally asynchronous, i.e. the code execution goes on while the data is being fetched in the background.

You have to nest the requests:

$.getJSON("https://prod.api.pvp.net/api/lol/eune/v1.1/summoner/by-name/"+input+"?api_key=API_KEY_HERE"  , function(name){   obj = name;   // sID is only now available!   sID = obj.id;   console.log(sID); }); 

• Put the second request into a function
• and let it accept sID as a parameter, so you don't have to declare it globally anymore! (Global variables are almost always evil!)
• Remove sID and obj variables - name.id is sufficient unless you really need the other variables outside the function.

$.getJSON("https://prod.api.pvp.net/api/lol/eune/v1.1/summoner/by-name/"+input+"?api_key=API_KEY_HERE"  , function(name){   // We don't need sID or obj here - name.id is sufficient   console.log(name.id);    doSecondRequest(name.id); });  /// TODO Choose a better name function doSecondRequest(sID) {   $.getJSON("https://prod.api.pvp.net/api/lol/eune/v1.2/stats/by-summoner/" + sID + "/summary?api_key=API_KEY_HERE", function(stats){         console.log(stats);   }); } 

Hapy New Year :)

You don't want to take care of normalizing your data in a view - what if the user changes the data that gets submitted? Instead you could take care of it in the model using the before_save (or the before_validation) callback. Here's an example of the relevant code for a model like yours:

class Place < ActiveRecord::Base   before_save do |place|     place.city = place.city.downcase.titleize     place.country = place.country.downcase.titleize   end end 

You can also check out the Ruby on Rails guide for more info.

To answer you question more directly, something like this would work:

<%= f.text_field :city, :value => (f.object.city ? f.object.city.titlecase : '') %>   

This just means if f.object.city exists, display the titlecase version of it, and if it doesn't display a blank string.

We have found that adding the Apptentive cocoa pod to an existing Xcode project may potentially not include some of our required frameworks.

Check your linker flags:

Target > Build Settings > Other Linker Flags 

You should see -lApptentiveConnect listed as a linker flag:

... -ObjC -lApptentiveConnect ... 

You should also see our required Frameworks listed:

• Accelerate
• CoreData
• CoreText
• CoreGraphics
• CoreTelephony
• Foundation
• QuartzCore
• StoreKit
• SystemConfiguration

• UIKit

  -ObjC -lApptentiveConnect -framework Accelerate -framework CoreData -framework CoreGraphics -framework CoreText -framework Foundation -framework QuartzCore -framework SystemConfiguration -framework UIKit -framework CoreTelephony -framework StoreKit  

Just wondering why you are using 2 directives?

It seems like, in this case it would be more straightforward to have a controller as the parent - handle adding the data from your service to its $scope, and pass the model you need from there into your warrantyDirective.

Or for that matter, you could use 0 directives to achieve the same result. (ie. move all functionality out of the separate directives and into a single controller).

It doesn't look like you're doing any explicit DOM transformation here, so in this case, perhaps using 2 directives is overcomplicating things.

Alternatively, have a look at the Angular documentation for directives: http://docs.angularjs.org/guide/directive The very last example at the bottom of the page explains how to wire up dependent directives.

In your last block you have a comma after 'lang', followed immediately with a function. This is not valid json.

EDIT

It appears that the readme was incorrect. I had to to pass an array with the string 'twitter'.

var converter = new Showdown.converter({extensions: ['twitter']}); converter.makeHtml('whatever @meandave2020'); // output "<p>whatever <a href="http://twitter.com/meandave2020">@meandave2020</a></p>" 

I submitted a pull request to update this.

If you have ejected, this is the proper way to fix this issue:

find this file config/webpackDevServer.config.js and then inside this file find the following line:

app.use(noopServiceWorkerMiddleware());

You should change it to:

app.use(noopServiceWorkerMiddleware('/'));

For me(and probably most of you) the service worker is served at the root of the project. In case it's different for you, you can pass your base path instead.

I think that your problem was emerged from typescript and module version mismatch.This issue is very similar to your question and answers are very satisfying.

Here is I solved:

Open the extension settings:

And search for the variable you want to change, and unchecked/checked it

The variables you should consider are:

intelephense.diagnostics.undefinedTypes 
intelephense.diagnostics.undefinedFunctions         
intelephense.diagnostics.undefinedConstants         
intelephense.diagnostics.undefinedClassConstants 
intelephense.diagnostics.undefinedMethods 
intelephense.diagnostics.undefinedProperties 
intelephense.diagnostics.undefinedVariables

Step-1: Change the file name src/App.js to src/app.js

Step-2: Click on "Yes" for "Update imports for app.js".

Step-3: Restart the server again.

Edit / Update:

If you are using Typescript 3.7 or newer you can now also do:

    const data = change?.after?.data();

    if(!data) {
      console.error('No data here!');
       return null
    }

    const maxLen = 100;
    const msgLen = data.messages.length;
    const charLen = JSON.stringify(data).length;

    const batch = db.batch();

    if (charLen >= 10000 || msgLen >= maxLen) {

      // Always delete at least 1 message
      const deleteCount = msgLen - maxLen <= 0 ? 1 : msgLen - maxLen
      data.messages.splice(0, deleteCount);

      const ref = db.collection("chats").doc(change.after.id);

      batch.set(ref, data, { merge: true });

      return batch.commit();
    } else {
      return null;
    }

Original Response

Typescript is saying that change or data is possibly undefined (depending on what onUpdate returns).

So you should wrap it in a null/undefined check:

if(change && change.after && change.after.data){
    const data = change.after.data();

    const maxLen = 100;
    const msgLen = data.messages.length;
    const charLen = JSON.stringify(data).length;

    const batch = db.batch();

    if (charLen >= 10000 || msgLen >= maxLen) {

      // Always delete at least 1 message
      const deleteCount = msgLen - maxLen <= 0 ? 1 : msgLen - maxLen
      data.messages.splice(0, deleteCount);

      const ref = db.collection("chats").doc(change.after.id);

      batch.set(ref, data, { merge: true });

      return batch.commit();
    } else {
      return null;
    }
}

If you are 100% sure that your object is always defined then you can put this:

const data = change.after!.data();

You could make use of Typescript's optional chaining. Example:

const name = person?.name;

If the property name exists on the person object you would get its value but if not it would automatically return undefined.

You could make use of this resource for a better understanding.

https://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-7.html

I had a similar problem and solved it :

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

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

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

After I read Walter's answer up in this thread

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

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

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

you can declare your component like this:

const MyComponent: React.FunctionComponent = (props) => {
    return props.children;
}

var userPasswordString = new Buffer(baseAuth, 'base64').toString('ascii');

Change this line from your code to this -

var userPasswordString = Buffer.from(baseAuth, 'base64').toString('ascii');

or in my case, I gave the encoding in reverse order

var userPasswordString = Buffer.from(baseAuth, 'utf-8').toString('base64');

if you need to include the key of the document in the response, another alternative is:

async getMarker() {
    const snapshot = await firebase.firestore().collection('events').get()
    const documents = [];
    snapshot.forEach(doc => {
       documents[doc.id] = doc.data();
    });
    return documents;
}

Try something like this:

type: application/ms-excel

/**
 *  used to get file from server
 */

this.http.get(`${environment.apiUrl}`,{
          responseType: 'arraybuffer',headers:headers} 
         ).subscribe(response => this.downLoadFile(response, "application/ms-excel"));


    /**
     * Method is use to download file.
     * @param data - Array Buffer data
     * @param type - type of the document.
     */
    downLoadFile(data: any, type: string) {
        let blob = new Blob([data], { type: type});
        let url = window.URL.createObjectURL(blob);
        let pwa = window.open(url);
        if (!pwa || pwa.closed || typeof pwa.closed == 'undefined') {
            alert( 'Please disable your Pop-up blocker and try again.');
        }
    }

you can use localStorage for storing the json data:

the example is given below:-

let JSONDatas = [
    {"id": "Open"},
    {"id": "OpenNew", "label": "Open New"},
    {"id": "ZoomIn", "label": "Zoom In"},
    {"id": "ZoomOut", "label": "Zoom Out"},
    {"id": "Find", "label": "Find..."},
    {"id": "FindAgain", "label": "Find Again"},
    {"id": "Copy"},
    {"id": "CopyAgain", "label": "Copy Again"},
    {"id": "CopySVG", "label": "Copy SVG"},
    {"id": "ViewSVG", "label": "View SVG"}
]

localStorage.setItem("datas", JSON.stringify(JSONDatas));

let data = JSON.parse(localStorage.getItem("datas"));

console.log(data);

Using ES6 syntax in React does not bind this to user-defined functions however it will bind this to the component lifecycle methods.

So the function that you declared will not have the same context as the class and trying to access this will not give you what you are expecting.

For getting the context of class you have to bind the context of class to the function or use arrow functions.

Method 1 to bind the context:

class MyContainer extends Component {

    constructor(props) {
        super(props);
        this.onMove = this.onMove.bind(this);
        this.testVarible= "this is a test";
    }

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

Method 2 to bind the context:

class MyContainer extends Component {

    constructor(props) {
        super(props);
        this.testVarible= "this is a test";
    }

    onMove = () => {
        console.log(this.testVarible);
    }
}

Method 2 is my preferred way but you are free to choose your own.

Update: You can also create the properties on class without constructor:

class MyContainer extends Component {

    testVarible= "this is a test";

    onMove = () => {
        console.log(this.testVarible);
    }
}

Note If you want to update the view as well, you should use state and setState method when you set or change the value.

Example:

class MyContainer extends Component {

    state = { testVarible: "this is a test" };

    onMove = () => {
        console.log(this.state.testVarible);
        this.setState({ testVarible: "new value" });
    }
}

     <ImageBackground
            source={require("../assests/background_image.jpg")}
            style={styles.container}

        >
            <View
                style={{
                    flex: 1,
                    justifyContent: "center",
                    alignItems: "center"
                }}
            >
                <Button
                    onPress={() => this.props.showImagePickerComponent(this.props.navigation)}
                    title="START"
                    color="#841584"
                    accessibilityLabel="Increase Count"
                />
            </View>
        </ImageBackground>

Please use this code for set background image in react native

Since Node v11.0.0 fs promises are available natively without promisify:

const fs = require('fs').promises;
async function loadMonoCounter() {
    const data = await fs.readFile("monolitic.txt", "binary");
    return new Buffer(data);
}

In your onHandleSubmit function, set your state to {city: ''} again like this :

this.setState({ city: '' });

I had the same issue trying to do something the same as you and I fixed it with something similar to Richie Fredicson's answer.

When you run createComponent() it is created with undefined input variables. Then after that when you assign data to those input variables it changes things and causes that error in your child template (in my case it was because I was using the input in an ngIf, which changed once I assigned the input data).

The only way I could find to avoid it in this specific case is to force change detection after you assign the data, however I didn't do it in ngAfterContentChecked().

Your example code is a bit hard to follow but if my solution works for you it would be something like this (in the parent component):

export class ParentComponent implements AfterViewInit {
  // I'm assuming you have a WidgetDirective.
  @ViewChild(WidgetDirective) widgetHost: WidgetDirective;

  constructor(
    private componentFactoryResolver: ComponentFactoryResolver,
    private changeDetector: ChangeDetectorRef
  ) {}

  ngAfterViewInit() {
    renderWidgetInsideWidgetContainer();
  }

  renderWidgetInsideWidgetContainer() {
    let component = this.storeFactory.getWidgetComponent(this.dataSource.ComponentName);
    let componentFactory = this.componentFactoryResolver.resolveComponentFactory(component);
    let viewContainerRef = this.widgetHost.viewContainerRef;
    viewContainerRef.clear();
    let componentRef = viewContainerRef.createComponent(componentFactory);
    debugger;
    // This <IDataBind> type you are using here needs to be changed to be the component
    // type you used for the call to resolveComponentFactory() above (if it isn't already).
    // It tells it that this component instance if of that type and then it knows
    // that WidgetDataContext and WidgetPosition are @Inputs for it.
    (<IDataBind>componentRef.instance).WidgetDataContext = this.dataSource.DataContext;
    (<IDataBind>componentRef.instance).WidgetPosition = this.dataSource.Position;
    this.changeDetector.detectChanges();
  }
}

Mine is almost the same as that except I'm using @ViewChildren instead of @ViewChild as I have multiple host elements.

In your test code your are trying to pass App to the spyOn function, but spyOn will only work with objects, not classes. Generally you need to use one of two approaches here:

1) Where the click handler calls a function passed as a prop, e.g.

class App extends Component {

  myClickFunc = () => {
      console.log('clickity clickcty');
      this.props.someCallback();
  }
  render() {
    return (
      <div className="App">
        <div className="App-header">
          <img src={logo} className="App-logo" alt="logo" />
          <h2>Welcome to React</h2>
        </div>
        <p className="App-intro" onClick={this.myClickFunc}>
          To get started, edit <code>src/App.js</code> and save to reload.
        </p>
      </div>
    );
  }
}

You can now pass in a spy function as a prop to the component, and assert that it is called:

describe('my sweet test', () => {
 it('clicks it', () => {
    const spy = jest.fn();
    const app = shallow(<App someCallback={spy} />)
    const p = app.find('.App-intro')
    p.simulate('click')
    expect(spy).toHaveBeenCalled()
 })
})

2) Where the click handler sets some state on the component, e.g.

class App extends Component {
  state = {
      aProperty: 'first'
  }

  myClickFunc = () => {
      console.log('clickity clickcty');
      this.setState({
          aProperty: 'second'
      });
  }
  render() {
    return (
      <div className="App">
        <div className="App-header">
          <img src={logo} className="App-logo" alt="logo" />
          <h2>Welcome to React</h2>
        </div>
        <p className="App-intro" onClick={this.myClickFunc}>
          To get started, edit <code>src/App.js</code> and save to reload.
        </p>
      </div>
    );
  }
}

You can now make assertions about the state of the component, i.e.

describe('my sweet test', () => {
 it('clicks it', () => {
    const app = shallow(<App />)
    const p = app.find('.App-intro')
    p.simulate('click')
    expect(app.state('aProperty')).toEqual('second');
 })
})

updated might be what you're looking for. https://vuejs.org/v2/api/#updated

Try using

import Map from './Map';

When you use import 'module' it will just run the module as a script. This is useful when you are trying to introduce side-effects into global namespace, e. g. polyfill newer features for older/unsupported browsers.

ES6 modules are allowed to define default exports and regular exports. When you use the syntax import defaultExport from 'module' it will import the default export of that module with alias defaultExport.

For further reading on ES6 import - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import

By this you can get any index in *ngFor loop in ANGULAR ...

<ul>
  <li *ngFor="let object of myArray; let i = index; let first = first ;let last = last;">
    <div *ngIf="first">
       // write your code...
    </div>

    <div *ngIf="last">
       // write your code...
    </div>
  </li>
</ul>

We can use these alias in *ngFor

• index : number : let i = index to get all index of object.
• first : boolean : let first = first to get first index of object.
• last : boolean : let last = last to get last index of object.
• odd : boolean : let odd = odd to get odd index of object.
• even : boolean : let even = even to get even index of object.

This seems to be similar to this issue: False "Property does not exist on type 'never'" when changing value inside callback with strictNullChecks, which is closed as a duplicate of this issue (discussion): Trade-offs in Control Flow Analysis.

That discussion is pretty long, if you can't find a good solution there you can try this:

if (instance == null) {
    console.log('Instance is null or undefined');
} else {
    console.log(instance!.name); // ok now
}

From Typescript 3.7 on, you can also use nullish coalescing:

let x = foo ?? bar();

Which is the equivalent for checking for null or undefined:

let x = (foo !== null && foo !== undefined) ?
    foo :
    bar();

https://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-7.html#nullish-coalescing

While not exactly the same, you could write your code as:

var uemail = localStorage.getItem("useremail") ?? alert('Undefined');

As mentioned in the comments, some labels in y_test don't appear in y_pred. Specifically in this case, label '2' is never predicted:

>>> set(y_test) - set(y_pred)
{2}

This means that there is no F-score to calculate for this label, and thus the F-score for this case is considered to be 0.0. Since you requested an average of the score, you must take into account that a score of 0 was included in the calculation, and this is why scikit-learn is showing you that warning.

This brings me to you not seeing the error a second time. As I mentioned, this is a warning, which is treated differently from an error in python. The default behavior in most environments is to show a specific warning only once. This behavior can be changed:

import warnings
warnings.filterwarnings('always')  # "error", "ignore", "always", "default", "module" or "once"

If you set this before importing the other modules, you will see the warning every time you run the code.

There is no way to avoid seeing this warning the first time, aside for setting warnings.filterwarnings('ignore'). What you can do, is decide that you are not interested in the scores of labels that were not predicted, and then explicitly specify the labels you are interested in (which are labels that were predicted at least once):

>>> metrics.f1_score(y_test, y_pred, average='weighted', labels=np.unique(y_pred))
0.91076923076923078

The warning is not shown in this case.

Since “this message is harmless”(see the @CrazyCoder's answer), a simple and safe workaround is that you can fold this buzzing message in console by IntelliJ IDEA settings:

1. ?Preferences?- ?Editor?-?General?-?Console?- ?Fold console lines that contain?
   Of course, you can use ?Find Action...?(cmd+shift+A on mac) and type Fold console lines that contain so as to navigate more effectively.
2. add Class JavaLaunchHelper is implemented in both

On my computer, It turns out: (LGTM :b )

And you can unfold the message to check it again:

PS:

As of October 2017, this issue is now resolved in jdk1.9/jdk1.8.152/jdk1.7.161
for more info, see the @muttonUp's answer)

So I had this exact same issue and lost about 6 hours of my life searching, I had the

withCredentials: true

But the browser still didn't save the cookie until for some weird reason I had the idea to shuffle the configuration setting:

Axios.post(GlobalVariables.API_URL + 'api/login', {
        email,
        password,
        honeyPot
    }, {
        withCredentials: true,
        headers: {'Access-Control-Allow-Origin': '*', 'Content-Type': 'application/json'
    }});

Seems like you should always send the 'withCredentials' Key first.

You're doing a few things wrong.

1. First, browserHistory isn't a thing in V4, so you can remove that.

2. Second, you're importing everything from react-router, it should be react-router-dom.

3. Third, react-router-dom doesn't export a Router, instead, it exports a BrowserRouter so you need to import { BrowserRouter as Router } from 'react-router-dom.

Looks like you just took your V3 app and expected it to work with v4, which isn't a great idea.

In my case I just had to upgrade from react-router-redux to react-router-redux@next. I'm assuming it must have been some sort of compatibility issue.

This problem may also happen if you have a unit test project that has a different C++ version than the project you want to test.

Example:

• EXE with C++ 17 enabled explicitly
• Unit Test with C++ version set to "Default"

Solution: change the Unit Test to C++17 as well.

Add your <script> to the bottom of your <body>, or add an event listener for DOMContentLoaded following this StackOverflow question.

If that script executes in the <head> section of the code, document.getElementsByClassName(...) will return an empty array because the DOM is not loaded yet.

You're getting the Type Error because you're referencing search_span[0], but search_span[0] is undefined.

This works when you execute it in Dev Tools because the DOM is already loaded.

You can also get them with pure javascript.

For example:

new URL(location.href).searchParams.get('page')

For this url: websitename.com/user/?page=1, it would return a value of 1

Every Ansible task when run can save its results into a variable. To do this, you have to specify which variable to save the results into. Do this with the register parameter, independently of the module used.

Once you save the results to a variable you can use it later in any of the subsequent tasks. So for example if you want to get the standard output of a specific task you can write the following:

---
- hosts: localhost
  tasks:
    - shell: ls
      register: shell_result

    - debug:
        var: shell_result.stdout_lines

Here register tells ansible to save the response of the module into the shell_result variable, and then we use the debug module to print the variable out.

An example run would look like the this:

PLAY [localhost] ***************************************************************

TASK [command] *****************************************************************
changed: [localhost]

TASK [debug] *******************************************************************
ok: [localhost] => {
    "shell_result.stdout_lines": [
        "play.yml"
    ]
}

Responses can contain multiple fields. stdout_lines is one of the default fields you can expect from a module's response.

Not all fields are available from all modules, for example for a module which doesn't return anything to the standard out you wouldn't expect anything in the stdout or stdout_lines values, however the msg field might be filled in this case. Also there are some modules where you might find something in a non-standard variable, for these you can try to consult the module's documentation for these non-standard return values.

Alternatively you can increase the verbosity level of ansible-playbook. You can choose between different verbosity levels: -v, -vvv and -vvvv. For example when running the playbook with verbosity (-vvv) you get this:

PLAY [localhost] ***************************************************************

TASK [command] *****************************************************************
(...)
changed: [localhost] => {
    "changed": true,
    "cmd": "ls",
    "delta": "0:00:00.007621",
    "end": "2017-02-17 23:04:41.912570",
    "invocation": {
        "module_args": {
            "_raw_params": "ls",
            "_uses_shell": true,
            "chdir": null,
            "creates": null,
            "executable": null,
            "removes": null,
            "warn": true
        },
        "module_name": "command"
    },
    "rc": 0,
    "start": "2017-02-17 23:04:41.904949",
    "stderr": "",
    "stdout": "play.retry\nplay.yml",
    "stdout_lines": [
        "play.retry",
        "play.yml"
    ],
    "warnings": []
}

As you can see this will print out the response of each of the modules, and all of the fields available. You can see that the stdout_lines is available, and its contents are what we expect.

To answer your main question about the jenkins_script module, if you check its documentation, you can see that it returns the output in the output field, so you might want to try the following:

tasks:
  - jenkins_script:
      script: (...)
    register: jenkins_result

  - debug:
      var: jenkins_result.output

It is just letting you know that the object you are printing is not a string, rather a byte object as a byte literal. People explain this in incomplete ways, so here is my take.

Consider creating a byte object by typing a byte literal (literally defining a byte object without actually using a byte object e.g. by typing b'') and converting it into a string object encoded in utf-8. (Note that converting here means decoding)

byte_object= b"test" # byte object by literally typing characters
print(byte_object) # Prints b'test'
print(byte_object.decode('utf8')) # Prints "test" without quotations

You see that we simply apply the .decode(utf8) function.

Bytes in Python

https://docs.python.org/3.3/library/stdtypes.html#bytes

String literals are described by the following lexical definitions:

https://docs.python.org/3.3/reference/lexical_analysis.html#string-and-bytes-literals

stringliteral   ::=  [stringprefix](shortstring | longstring)
stringprefix    ::=  "r" | "u" | "R" | "U"
shortstring     ::=  "'" shortstringitem* "'" | '"' shortstringitem* '"'
longstring      ::=  "'''" longstringitem* "'''" | '"""' longstringitem* '"""'
shortstringitem ::=  shortstringchar | stringescapeseq
longstringitem  ::=  longstringchar | stringescapeseq
shortstringchar ::=  <any source character except "\" or newline or the quote>
longstringchar  ::=  <any source character except "\">
stringescapeseq ::=  "\" <any source character>

bytesliteral   ::=  bytesprefix(shortbytes | longbytes)
bytesprefix    ::=  "b" | "B" | "br" | "Br" | "bR" | "BR" | "rb" | "rB" | "Rb" | "RB"
shortbytes     ::=  "'" shortbytesitem* "'" | '"' shortbytesitem* '"'
longbytes      ::=  "'''" longbytesitem* "'''" | '"""' longbytesitem* '"""'
shortbytesitem ::=  shortbyteschar | bytesescapeseq
longbytesitem  ::=  longbyteschar | bytesescapeseq
shortbyteschar ::=  <any ASCII character except "\" or newline or the quote>
longbyteschar  ::=  <any ASCII character except "\">
bytesescapeseq ::=  "\" <any ASCII character>

There are few typical methods how we control components render in React.

But, I haven't used any of these in here, I just used the ref's to namespace underlying children to the component.

class AddItem extends React.Component {_x000D_
    change(e) {_x000D_
      if ("" != e.target.value) {_x000D_
        this.button.disabled = false;_x000D_
      } else {_x000D_
        this.button.disabled = true;_x000D_
      }_x000D_
    }_x000D_
_x000D_
    add(e) {_x000D_
      console.log(this.input.value);_x000D_
      this.input.value = '';_x000D_
      this.button.disabled = true;_x000D_
    }_x000D_
_x000D_
    render() {_x000D_
        return (_x000D_
          <div className="add-item">_x000D_
          <input type="text" className = "add-item__input" ref = {(input) => this.input=input} onChange = {this.change.bind(this)} />_x000D_
          _x000D_
          <button className="add-item__button" _x000D_
          onClick= {this.add.bind(this)} _x000D_
          ref={(button) => this.button=button}>Add_x000D_
          </button>_x000D_
          </div>_x000D_
        );_x000D_
    }_x000D_
}_x000D_
_x000D_
ReactDOM.render(<AddItem / > , document.getElementById('root'));

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>_x000D_
<div id="root"></div>

JJB's answer got me on the right track, but the upgrade didn't go very smoothly. My process is detailed below. Hopefully the process becomes easier in the future and JJB's answer can be used or something even more straightforward.

Solution Details

I have followed the steps captured in JJB's answer to update the angular-cli precisely. However, after running npm install angular-cli was broken. Even trying to do ng version would produce an error. So I couldn't do the ng init command. See error below:

$ ng init
core_1.Version is not a constructor
TypeError: core_1.Version is not a constructor
    at Object.<anonymous> (C:\_git\my-project\code\src\main\frontend\node_modules\@angular\compiler-cli\src\version.js:18:19)
    at Module._compile (module.js:556:32)
    at Object.Module._extensions..js (module.js:565:10)
    at Module.load (module.js:473:32)
    ...

To be able to use any angular-cli commands, I had to update my package.json file by hand and bump the @angular dependencies to 2.4.1, then do another npm install.

After this I was able to do ng init. I updated my configuration files, but none of my app/* files. When this was done, I was still getting errors. The first one is detailed below, the second was the same type of error but in a different file.

ERROR in Error encountered resolving symbol values statically. Function calls are not supported. Consider replacing the function or lambda with a reference to an exported function (position 62:9 in the original .ts file), resolving symbol AppModule in C:/_git/my-project/code/src/main/frontend/src/app/app.module.ts

This error is tied to the following factory provider in my AppModule

{ provide: Http, useFactory: 
    (backend: XHRBackend, options: RequestOptions, router: Router, navigationService: NavigationService, errorService: ErrorService) => {
    return new HttpRerouteProvider(backend, options, router, navigationService, errorService);  
  }, deps: [XHRBackend, RequestOptions, Router, NavigationService, ErrorService]
}

To address this error, I had use an exported function and made the following change to the provider.

    { 
      provide: Http, 
      useFactory: httpFactory, 
      deps: [XHRBackend, RequestOptions, Router, NavigationService, ErrorService]
    }

... // elsewhere in AppModule

export function httpFactory(backend: XHRBackend, 
                            options: RequestOptions, 
                            router: Router, 
                            navigationService: NavigationService, 
                            errorService: ErrorService) {
  return new HttpRerouteProvider(backend, options, router, navigationService, errorService);
}

Summary

To summarize what I understand to be the most important details, the following changes were required:

1. Update angular-cli version using the steps detailed in JJB's answer (and on their github page).

2. Updating @angular version by hand, 2.0.0 did not seem to be supported by angular-cli version 1.0.0-beta.24

3. With the assistance of angular-cli and the ng init command, I updated my configuration files. I think the critical changes were to angular-cli.json and package.json. See configuration file changes at the bottom.

4. Make code changes to export functions before I reference them, as captured in the solution details.

Key Configuration Changes

angular-cli.json changes

{
  "project": {
    "version": "1.0.0-beta.16",
    "name": "frontend"
  },
  "apps": [
    {
      "root": "src",
      "outDir": "dist",
      "assets": "assets",
...

changed to...

{
  "project": {
    "version": "1.0.0-beta.24",
    "name": "frontend"
  },
  "apps": [
    {
      "root": "src",
      "outDir": "dist",
      "assets": [
        "assets",
        "favicon.ico"
      ],
...

My package.json looks like this after a manual merge that considers the versions used by ng-init. Note my angular version is not 2.4.1, but the change I was after was component inheritance which was introduced in 2.3, so I was fine with these versions. The original package.json is in the question.

{
  "name": "frontend",
  "version": "0.0.0",
  "license": "MIT",
  "angular-cli": {},
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "lint": "tslint \"src/**/*.ts\"",
    "test": "ng test",
    "pree2e": "webdriver-manager update --standalone false --gecko false",
    "e2e": "protractor",
    "build": "ng build",
    "buildProd": "ng build --env=prod"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "^2.3.1",
    "@angular/compiler": "^2.3.1",
    "@angular/core": "^2.3.1",
    "@angular/forms": "^2.3.1",
    "@angular/http": "^2.3.1",
    "@angular/platform-browser": "^2.3.1",
    "@angular/platform-browser-dynamic": "^2.3.1",
    "@angular/router": "^3.3.1",
    "@angular/material": "^2.0.0-beta.1",
    "@types/google-libphonenumber": "^7.4.8",
    "angular2-datatable": "^0.4.2",
    "apollo-client": "^0.4.22",
    "core-js": "^2.4.1",
    "rxjs": "^5.0.1",
    "ts-helpers": "^1.1.1",
    "zone.js": "^0.7.2",
    "google-libphonenumber": "^2.0.4",
    "graphql-tag": "^0.1.15",
    "hammerjs": "^2.0.8",
    "ng2-bootstrap": "^1.1.16"
  },
  "devDependencies": {
    "@types/hammerjs": "^2.0.33",
    "@angular/compiler-cli": "^2.3.1",
    "@types/jasmine": "2.5.38",
    "@types/lodash": "^4.14.39",
    "@types/node": "^6.0.42",
    "angular-cli": "1.0.0-beta.24",
    "codelyzer": "~2.0.0-beta.1",
    "jasmine-core": "2.5.2",
    "jasmine-spec-reporter": "2.5.0",
    "karma": "1.2.0",
    "karma-chrome-launcher": "^2.0.0",
    "karma-cli": "^1.0.1",
    "karma-jasmine": "^1.0.2",
    "karma-remap-istanbul": "^0.2.1",
    "protractor": "~4.0.13",
    "ts-node": "1.2.1",
    "tslint": "^4.0.2",
    "typescript": "~2.0.3",
    "typings": "1.4.0"
  }
}

Safe navigation operator or Existential Operator or Null Propagation Operator is supported in Angular Template. Suppose you have Component class

  myObj:any = {
    doSomething: function () { console.log('doing something'); return 'doing something'; },
  };
  myArray:any;
  constructor() { }

  ngOnInit() {
    this.myArray = [this.myObj];
  }

You can use it in template html file as following:

<div>test-1: {{  myObj?.doSomething()}}</div>
<div>test-2: {{  myArray[0].doSomething()}}</div>
<div>test-3: {{  myArray[2]?.doSomething()}}</div>

In case you also need to check if nextProps.blog is not undefined ; you can do that in a single if statement, like this:

if (typeof nextProps.blog !== "undefined" && typeof nextProps.blog.content !== "undefined") {
    //
}

And, when an undefined , empty or null value is not expected; you can make it more concise:

if (nextProps.blog && nextProps.blog.content) {
    //
}

If you're just after console logging here's what I'd do:

export default class App extends Component {
  componentDidMount() {
    console.log('I was triggered during componentDidMount')
  }

  render() {
    console.log('I was triggered during render')
    return ( 
      <div> I am the App component </div>
    )
  }
}

Shouldn't be any need for those packages just to do console logging.

You might produce the wrong behavior because the File-Api fs.readdir does not return a promise. It only takes a callback. If you want to go with the async-await syntax you could 'promisify' the function like this:

function readdirAsync(path) {
  return new Promise(function (resolve, reject) {
    fs.readdir(path, function (error, result) {
      if (error) {
        reject(error);
      } else {
        resolve(result);
      }
    });
  });
}

and call it instead:

names = await readdirAsync('path/to/dir');

Note that you can only read a stream once, so in some cases, you may need to clone the response in order to repeatedly read it:

fetch('example.json')
  .then(res=>res.clone().json())
  .then( json => console.log(json))

fetch('url_that_returns_text')
  .then(res=>res.clone().text())
  .then( text => console.log(text))

As an option, you can use a type casting. If you have this error from typescript that means that some variable has type or is undefined:

let a: string[] | undefined;

let b: number = a.length; // [ts] Object is possibly 'undefined'
let c: number = (a as string[]).length; // ok

Be sure that a really exist in your code.

Take a look at your code :

 getUsers(): Observable<User[]> {
        return Observable.create(observer => {
            this.http.get('http://users.org').map(response => response.json();
        })
    }

and code from https://angular.io/docs/ts/latest/tutorial/toh-pt6.html (BTW. really good tutorial, you should check it out)

 getHeroes(): Promise<Hero[]> {
    return this.http.get(this.heroesUrl)
               .toPromise()
               .then(response => response.json().data as Hero[])
               .catch(this.handleError);
  }

The HttpService inside Angular2 already returns an observable, sou don't need to wrap another Observable around like you did here:

   return Observable.create(observer => {
        this.http.get('http://users.org').map(response => response.json()

Try to follow the guide in link that I provided. You should be just fine when you study it carefully.

---EDIT----

First of all WHERE you log the this.users variable? JavaScript isn't working that way. Your variable is undefined and it's fine, becuase of the code execution order!

Try to do it like this:

  getUsers(): void {
        this.userService.getUsers()
            .then(users => {
               this.users = users
               console.log('this.users=' + this.users);
            });


    }

See where the console.log(...) is!

Try to resign from toPromise() it's seems to be just for ppl with no RxJs background.

Catch another link: https://scotch.io/tutorials/angular-2-http-requests-with-observables Build your service once again with RxJs observables.

Building on @Pvl's answer, you can include type safety on your returned value as well if you use overrides:

function dig<
  T,
  K1 extends keyof T
  >(obj: T, key1: K1): T[K1];

function dig<
  T,
  K1 extends keyof T,
  K2 extends keyof T[K1]
  >(obj: T, key1: K1, key2: K2): T[K1][K2];

function dig<
  T,
  K1 extends keyof T,
  K2 extends keyof T[K1],
  K3 extends keyof T[K1][K2]
  >(obj: T, key1: K1, key2: K2, key3: K3): T[K1][K2][K3];

function dig<
  T,
  K1 extends keyof T,
  K2 extends keyof T[K1],
  K3 extends keyof T[K1][K2],
  K4 extends keyof T[K1][K2][K3]
  >(obj: T, key1: K1, key2: K2, key3: K3, key4: K4): T[K1][K2][K3][K4];

function dig<
  T,
  K1 extends keyof T,
  K2 extends keyof T[K1],
  K3 extends keyof T[K1][K2],
  K4 extends keyof T[K1][K2][K3],
  K5 extends keyof T[K1][K2][K3][K4]
  >(obj: T, key1: K1, key2: K2, key3: K3, key4: K4, key5: K5): T[K1][K2][K3][K4][K5];

function dig<
  T,
  K1 extends keyof T,
  K2 extends keyof T[K1],
  K3 extends keyof T[K1][K2],
  K4 extends keyof T[K1][K2][K3],
  K5 extends keyof T[K1][K2][K3][K4]
  >(obj: T, key1: K1, key2?: K2, key3?: K3, key4?: K4, key5?: K5):
  T[K1] |
  T[K1][K2] |
  T[K1][K2][K3] |
  T[K1][K2][K3][K4] |
  T[K1][K2][K3][K4][K5] {
    let value: any = obj && obj[key1];

    if (key2) {
      value = value && value[key2];
    }

    if (key3) {
      value = value && value[key3];
    }

    if (key4) {
      value = value && value[key4];
    }

    if (key5) {
      value = value && value[key5];
    }

    return value;
}

Example on playground.

This answer is to give a better understanding of this warning

Deprecation warning is caused when you use moment to create time object, var today = moment();.

If this warning is okay with you then I have a simpler method.

Don't use date object from js use moment instead. For example use moment() to get the current date.

Or convert the js date object to moment date. You can simply do that specifying the format of your js date object.

ie, moment("js date", "js date format");

eg:

moment("2014 04 25", "YYYY MM DD");

(BUT YOU CAN ONLY USE THIS METHOD UNTIL IT'S DEPRECIATED, this may be depreciated from moment in the future)

You can access the full uri/url with 'document.referrer'

Check https://developer.mozilla.org/en-US/docs/Web/API/Document/referrer

In Angular, there is the support elvis operator ?. to protect against a view render failure. They call it the safe navigation operator. Take the example below:

The current person name is {{nullObject?.name}}

Since it is trying to access name property of a null value, the whole view disappears and you can see the error inside the browser console. It works perfectly with long property paths such as a?.b?.c?.d. So I recommend you to use it everytime you need to access a property inside a template.

As noted in the accepted answer - you can use the special { props.children } property. However - you can just pass a component as a prop as the title requests. I think this is cleaner sometimes as you might want to pass several components and have them render in different places. Here's the react docs with an example of how to do it:

https://reactjs.org/docs/composition-vs-inheritance.html

Make sure you are actually passing a component and not an object (this tripped me up initially).

The code is simply this:

const Parent = () => { 
  return (
    <Child  componentToPassDown={<SomeComp />}  />
  )
}

const Child = ({ componentToPassDown }) => { 
  return (
    <>
     {componentToPassDown}  
    </>
  )
}

You are mixing mysql and mysqli

Change these lines:

$sql = mysql_query("SELECT * FROM login WHERE username = '".$_POST['username']."' and password = '".md5($_POST['password'])."'");
$row = mysql_num_rows($sql);

to

$sql = mysqli_query($success, "SELECT * FROM login WHERE username = '".$_POST['username']."' and password = '".md5($_POST['password'])."'");
$row = mysqli_num_rows($sql);

In my case, I was updating the server-sided datatable twice and it gives me this error. Hope it helps someone.

It Work for me if i use ChangeDetectorRef in Angular 9

@ViewChild('search', {static: false})
public searchElementRef: ElementRef;

constructor(private changeDetector: ChangeDetectorRef) {}

//then call this when this.display = true;
show() {
   this.display = true;
   this.changeDetector.detectChanges();
}

Make sure the modules don't import each other. So, there shouldn't be

In Module A: imports[ModuleB]

In Module B: imports[ModuleA]

it just simple :import this directory

import {Component, Directive, Input, ViewChild} from '@angular/core';

Here are the different ways in which you can create an array of booleans in typescript:

let arr1: boolean[] = [];
let arr2: boolean[] = new Array();
let arr3: boolean[] = Array();

let arr4: Array<boolean> = [];
let arr5: Array<boolean> = new Array();
let arr6: Array<boolean> = Array();

let arr7 = [] as boolean[];
let arr8 = new Array() as Array<boolean>;
let arr9 = Array() as boolean[];

let arr10 = <boolean[]> [];
let arr11 = <Array<boolean>> new Array();
let arr12 = <boolean[]> Array();

let arr13 = new Array<boolean>();
let arr14 = Array<boolean>();

You can access them using the index:

console.log(arr[5]);

and you add elements using push:

arr.push(true);

When creating the array you can supply the initial values:

let arr1: boolean[] = [true, false];
let arr2: boolean[] = new Array(true, false);

delete build folder projectfile\android\app\build and run project

For those using something like babel stage-2 or transform-class-properties:

import React, { PropTypes, Component } from 'react';

export default class ExampleComponent extends Component {
   static contextTypes = {
      // some context types
   };

   static propTypes = {
      prop1: PropTypes.object
   };

   static defaultProps = {
      prop1: { foobar: 'foobar' }
   };

   ...

}

Update

As of React v15.5, PropTypes was moved out of the main React Package (link):

import PropTypes from 'prop-types';

Edit

As pointed out by @johndodo, static class properties are actually not a part of the ES7 spec, but rather are currently only supported by babel. Updated to reflect that.

Just in case anyone runs into this in an environment where they cannot set node properties directly (in my case a build tool):

NODE_OPTIONS="--max-old-space-size=4096" node ...

You can set the node options using an environment variable if you cannot pass them on the command line.

Named exports:

Let's say you create a file called utils.js, with utility functions that you want to make available for other modules (e.g. a React component). Then you would make each function a named export:

export function add(x, y) {
  return x + y
}

export function mutiply(x, y) {
  return x * y
}

Assuming that utils.js is located in the same directory as your React component, you can use its exports like this:

import { add, multiply } from './utils.js';
...
add(2, 3) // Can be called wherever in your component, and would return 5.

Or if you prefer, place the entire module's contents under a common namespace:

import * as utils from './utils.js'; 
...
utils.multiply(2,3)

Default exports:

If you on the other hand have a module that only does one thing (could be a React class, a normal function, a constant, or anything else) and want to make that thing available to others, you can use a default export. Let's say we have a file log.js, with only one function that logs out whatever argument it's called with:

export default function log(message) {
  console.log(message);
}

This can now be used like this:

import log from './log.js';
...
log('test') // Would print 'test' in the console.

You don't have to call it log when you import it, you could actually call it whatever you want:

import logToConsole from './log.js';
...
logToConsole('test') // Would also print 'test' in the console.

Combined:

A module can have both a default export (max 1), and named exports (imported either one by one, or using * with an alias). React actually has this, consider:

import React, { Component, PropTypes } from 'react';

ES6 can bind 'this'

setTimeout(() => {

 },5000);

Because you're encapsulating the product again. Try to convert it like so:

let body = JSON.stringify(product); 

If you are getting a JS based date String then first use the new Date(String) constructor and then pass the Date object to the moment method. Like:

var dateString = 'Thu Jul 15 2016 19:31:44 GMT+0200 (CEST)';
var dateObj = new Date(dateString);
var momentObj = moment(dateObj);
var momentString = momentObj.format('YYYY-MM-DD'); // 2016-07-15

In case dateString is 15-07-2016, then you should use the moment(date:String, format:String) method

var dateString = '07-15-2016';
var momentObj = moment(dateString, 'MM-DD-YYYY');
var momentString = momentObj.format('YYYY-MM-DD'); // 2016-07-15

If you don't have an array but you are trying to use your observable like an array even though it's a stream of objects, this won't work natively. I show how to fix this below assuming you only care about adding objects to the observable, not deleting them.

If you are trying to use an observable whose source is of type BehaviorSubject, change it to ReplaySubject then in your component subscribe to it like this:

Component

this.messages$ = this.chatService.messages$.pipe(scan((acc, val) => [...acc, val], []));

Html

<div class="message-list" *ngFor="let item of messages$ | async">

You need use just simple code <img alt="img" src="../assets/index.png" />

Do not forgot atribut alt in balise img

The error tells you that there is an error but you don´t catch it. This is how you can catch it:

getAllPosts().then(response => {
    console.log(response);
}).catch(e => {
    console.log(e);
});

You can also just put a console.log(reponse) at the beginning of your API callback function, there is definitely an error message from the Graph API in it.

More information: https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Global_Objects/Promise/catch

Or with async/await:

//some async function
try {
    let response = await getAllPosts();
} catch(e) {
    console.log(e);
}

This article helped me alot figuring out why it wasn't working for me either. It give me a lesson to think of the webpage loading and how angular 2 interacts as a timeline and not just the point in time i'm thinking of. I didn't see anyone else mention this point, so I will...

The reason the *ngIf is needed because it will try to check the length of that variable before the rest of the OnInit stuff happens, and throw the "length undefined" error. So thats why you add the ? because it won't exist yet, but it will soon.

Make sure that response is in JSON format otherwise fires this error.

This worked for me:

let wrapped = mount(<Component />);
expect(wrapped.find("input").get(0).props.value).toEqual("something");

You can't pass objects using router params, only strings because it needs to be reflected in the URL. It would be probably a better approach to use a shared service to pass data around between routed components anyway.

The old router allows to pass data but the new (RC.1) router doesn't yet.

Update

data was re-introduced in RC.4 How do I pass data in Angular 2 components while using Routing?

If you need run code after 100% loaded with image and files, test this in mounted():

document.onreadystatechange = () => {
  if (document.readyState == "complete") {
    console.log('Page completed with image and files!')
    // fetch to next page or some code
  }
}

More info: MDN Api onreadystatechange

You need to put your code into ngOnInit and use the this keyword:

ngOnInit() {
  this.booksByStoreID = this.books.filter(
          book => book.store_id === this.store.id);
}

You need ngOnInit because the input store wouldn't be set into the constructor:

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.

(https://angular.io/docs/ts/latest/api/core/index/OnInit-interface.html)

In your code, the books filtering is directly defined into the class content...

The curly braces are used only for import when export is named. If the export is default then curly braces are not used for import.

if you use class component then only 3 steps- first you need to declare state for your input filed for example this.state = {name:''}. Secondly, you need to write a function for setting the state when it changes in bellow example it is setName() and finally you have to write the input jsx for example < input value={this.name} onChange = {this.setName}/>

import React, { Component } from 'react'

export class InputComponents extends Component {
    constructor(props) {
        super(props)

        this.state = {
             name:'',
             agree:false
        }
        this.setName = this.setName.bind(this);
        this.setAgree=this.setAgree.bind(this);
    }

    setName(e){
        e.preventDefault();
        console.log(e.target.value);
        this.setState({
            name:e.target.value
        })
    }
    setAgree(){
        this.setState({
            agree: !this.state.agree
        }, function (){
            console.log(this.state.agree);
        })
    }
    render() {
        return (
            <div>
                <input type="checkbox" checked={this.state.agree} onChange={this.setAgree}></input>
                < input value={this.state.name} onChange = {this.setName}/>
            </div>
        )
    }
}

export default InputComponents

In my case I was trying to 'get' from express app. Instead I had to do SET.

app.set('view engine','pug');

Any chance that you changed the name of your table view from "tableView" to "myTableView" at some point?

if($scope.test == null || $scope.test == undefined || $scope.test == "" ||    $scope.test.lenght == 0){

console.log("test is not defined");
}
else{
console.log("test is defined ",$scope.test); 
}

That is interesting subject. You can play around with two lifecycle hooks to figure out how it works: ngOnChanges and ngOnInit.

Basically when you set default value to Input that's mean it will be used only in case there will be no value coming on that component. And the interesting part it will be changed before component will be initialized.

Let's say we have such components with two lifecycle hooks and one property coming from input.

@Component({
  selector: 'cmp',
})
export class Login implements OnChanges, OnInit {
  @Input() property: string = 'default';

  ngOnChanges(changes) {
    console.log('Changed', changes.property.currentValue, changes.property.previousValue);
  }

  ngOnInit() {
    console.log('Init', this.property);
  }

}

Situation 1

Component included in html without defined property value

As result we will see in console: Init default

That's mean onChange was not triggered. Init was triggered and property value is default as expected.

Situation 2

Component included in html with setted property <cmp [property]="'new value'"></cmp>

As result we will see in console:

Changed new value Object {}

Init new value

And this one is interesting. Firstly was triggered onChange hook, which setted property to new value, and previous value was empty object! And only after that onInit hook was triggered with new value of property.

For TypeScript users:

    toggle(event: Event): void {
        let elementId: string = (event.target as Element).id;
        // do something with the id... 
    }

My component used an object myClassObject of type MyClass, which itself was using MyEnum. This lead to the same issue described above. Solved it by doing:

export enum MyEnum {
    Option1,
    Option2,
    Option3
}
export class MyClass {
    myEnum: typeof MyEnum;
    myEnumField: MyEnum;
    someOtherField: string;
}

and then using this in the template as

<div [ngSwitch]="myClassObject.myEnumField">
  <div *ngSwitchCase="myClassObject.myEnum.Option1">
    Do something for Option1
  </div>
  <div *ngSwitchCase="myClassObject.myEnum.Option2">
    Do something for Option2
  </div>
  <div *ngSwitchCase="myClassObject.myEnum.Option3">
    Do something for Opiton3
  </div>
</div>

Take a look at the FormData object: https://developer.mozilla.org/en/docs/Web/API/FormData

this.uploadFileToUrl = function(file, uploadUrl){
        var fd = new FormData();
        fd.append('file', file);
        $http.post(uploadUrl, fd, {
            transformRequest: angular.identity,
            headers: {'Content-Type': undefined}
        })
        .success(function(){
        })
        .error(function(){
        });
    }

With:

global index_add_counter

You are not defining, just declaring so it's like saying there is a global index_add_counter variable elsewhere, and not create a global called index_add_counter. As you name don't exists, Python is telling you it can not import that name. So you need to simply remove the global keyword and initialize your variable:

index_add_counter = 0

Now you can import it with:

from app import index_add_counter

The construction:

global index_add_counter

is used inside modules' definitions to force the interpreter to look for that name in the modules' scope, not in the definition one:

index_add_counter = 0
def test():
  global index_add_counter # means: in this scope, use the global name
  print(index_add_counter)

Make sure you're calling super() as the first thing in your constructor.

You should set this for setAuthorState method

class ManageAuthorPage extends Component {

  state = {
    author: { id: '', firstName: '', lastName: '' }
  };

  constructor(props) {
    super(props);
    this.handleAuthorChange = this.handleAuthorChange.bind(this);
  } 

  handleAuthorChange(event) {
    let {name: fieldName, value} = event.target;

    this.setState({
      [fieldName]: value
    });
  };

  render() {
    return (
      <AuthorForm
        author={this.state.author}
        onChange={this.handleAuthorChange}
      />
    );
  }
}

Another alternative based on arrow function:

class ManageAuthorPage extends Component {

  state = {
    author: { id: '', firstName: '', lastName: '' }
  };

  handleAuthorChange = (event) => {
    const {name: fieldName, value} = event.target;

    this.setState({
      [fieldName]: value
    });
  };

  render() {
    return (
      <AuthorForm
        author={this.state.author}
        onChange={this.handleAuthorChange}
      />
    );
  }
}

Another solution would be using [class.active].

Example :

<ol class="breadcrumb">
    <li [class.active]="step=='step1'" (click)="step='step1'">Step1</li>
</ol>

Perhaps you could try to use the of method of the Observable class:

import { Observable } from 'rxjs/Observable';
import 'rxjs/add/observable/of';

public fetchModel(uuid: string = undefined): Observable<string> {
  if(!uuid) {
    return Observable.of(new TestModel()).map(o => JSON.stringify(o));
  }
  else {
    return this.http.get("http://localhost:8080/myapp/api/model/" + uuid)
            .map(res => res.text());
  }
}

I create a file dif.go that contains your code:

package dif

import (
    "time"
)

var StartTime = time.Now()

Outside the folder I create my main.go, it is ok!

package main

import (
    dif "./dif"
    "fmt"
)

func main() {
    fmt.Println(dif.StartTime)
}

Outputs:

2016-01-27 21:56:47.729019925 +0800 CST

Files directory structure:

folder
  main.go
  dif
    dif.go

It works!

My solution to this was to replace *ngIf with [hidden]. Downside was all the child components were present in the code DOM. But worked for my requirements.

in case of a similar issue when I'm creating dockerfile I faced the same scenario:- I used below changed in mysql_connect function as:-

if($CONN = @mysqli_connect($DBHOST, $DBUSER, $DBPASS)){ //mysql_query("SET CHARACTER SET 'gbk'", $CONN);

I was getting this warning when I wanted to show a popup (bootstrap modal) on success/failure callback of Ajax request. Additionally setState was not working and my popup modal was not being shown.

Below was my situation-

<Component /> (Containing my Ajax function)
    <ChildComponent />
        <GrandChildComponent /> (Containing my PopupModal, onSuccess callback)

I was calling ajax function of component from grandchild component passing a onSuccess Callback (defined in grandchild component) which was setting state to show popup modal.

I changed it to -

<Component /> (Containing my Ajax function, PopupModal)
    <ChildComponent />
        <GrandChildComponent /> 

Instead I called setState (onSuccess Callback) to show popup modal in component (ajax callback) itself and problem solved.

In 2nd case: component was being rendered twice (I had included bundle.js two times in html).

const getData = () => {
// some functionality
}

const that = this;
   setTimeout(() => {
   // write your functions    
   that.getData()
},6000);

Simple, Settimout function get triggered after 6000 milliseonds

Diffrence between Foreach & map :

Map() : If you use map then map can return new array by iterating main array.

Foreach() : If you use Foreach then it can not return anything for each can iterating main array.

useFul link : use this link for understanding diffrence

https://codeburst.io/javascript-map-vs-foreach-f38111822c0f

OK, thanks all for the help.

However the problem was much easier than that.

All I need to do is to fix my JSON to assign the array, to an attribute called data, as following.

{
  "data": [{
    "name_en": "hello",
    "phone": "55555555",
    "email": "a.shouman",
    "facebook": "https:\/\/www.facebook.com"
  }, ...]
}

Promises don't "return" values, they pass them to a callback (which you supply with .then()).

It's probably trying to say that you're supposed to do resolve(someObject); inside the promise implementation.

Then in your then code you can reference someObject to do what you want.

From the PHP Manual:

Warning This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. Instead, the MySQLi or PDO_MySQL extension should be used. See also MySQL: choosing an API guide. Alternatives to this function include:

mysqli_connect()

PDO::__construct()

use MySQLi or PDO

<?php
$con = mysqli_connect('localhost', 'username', 'password', 'database');

In my case, for a stateless component that received the ref with forwardRef, I had to do what it is said here https://itnext.io/reusing-the-ref-from-forwardref-with-react-hooks-4ce9df693dd

From this (onClick doesn't have access to the equivalent of 'this')

const Com = forwardRef((props, ref) => {
  return <input ref={ref} onClick={() => {console.log(ref.current} } />
})

To this (it works)

const useCombinedRefs = (...refs) => {
  const targetRef = React.useRef()

  useEffect(() => {
    refs.forEach(ref => {
      if (!ref) return

      if (typeof ref === 'function') ref(targetRef.current)
      else ref.current = targetRef.current
    })
  }, [refs])

  return targetRef
}

const Com = forwardRef((props, ref) => {
  const innerRef = useRef()
  const combinedRef = useCombinedRefs(ref, innerRef)

  return <input ref={combinedRef } onClick={() => {console.log(combinedRef .current} } />
})

Try defaulting the exports in your components:

import React from 'react';
import Navbar from 'react-bootstrap/lib/Navbar';

export default class MyNavbar extends React.Component {
    render(){
      return (
        <Navbar className="navbar-dark" fluid>
        ...
        </Navbar>
      );
    }
}

by using default you express that's going to be member in that module which would be imported if no specific member name is provided. You could also express you want to import the specific member called MyNavbar by doing so: import {MyNavbar} from './comp/my-navbar.jsx'; in this case, no default is needed

In some cases, such as routing with a component that's wrapped with redux-form, replacing the Route component argument on this JSX element:

<Route path="speaker" component={Speaker}/>

With the Route render argument like the following, will fix issue:

<Route path="speaker" render={props => <Speaker {...props} />} />

The problem with your conditional is in this part sshkey_result.rc == 1, because sshkey_result does not contain rc attribute and entire conditional fails.

If you want to check if file exists check exists attribute.

Here you can read more about stat module and how to use it.

I got this, the only way I found to fix this was to update all of mingw-64 (I did this using pacman on msys2 for your information).

    DB::statement("your query")

I used it for add index to column in migration

User in the init of class:

constructor() {
    super()
    this.state = {
        email: ''
    }
}

Then in some function:

handleSome = () => { console.log(this.state.email) };

And in the input:

<TextInput onChangeText={(email) => this.setState({email})}/>

say you define the static getFactorial function inside a CodeController

then this is the way you need to call a static function, because static properties and methods exists with in the class, not in the objects created using the class.

CodeController::getFactorial($index);

----------------UPDATE----------------

To best practice I think you can put this kind of functions inside a separate file so you can maintain with more easily.

to do that

create a folder inside app directory and name it as lib (you can put a name you like).

this folder to needs to be autoload to do that add app/lib to composer.json as below. and run the composer dumpautoload command.

"autoload": {
    "classmap": [
                "app/commands",
                "app/controllers",
                ............
                "app/lib"
    ]
},

then files inside lib will autoloaded.

then create a file inside lib, i name it helperFunctions.php

inside that define the function.

if ( ! function_exists('getFactorial'))
{

    /**
     * return the factorial of a number
     *
     * @param $number
     * @return string
     */
    function getFactorial($date)
    {
        $fact = 1;

        for($i = 1; $i <= $num ;$i++)
            $fact = $fact * $i;

        return $fact;

     }
}

and call it anywhere within the app as

$fatorial_value = getFactorial(225);

you have many HTML and java script mistakes includes: tag, using non UTF-8 encoding for form submission, no need,... You must use document.forms.FORMNAME or document.forms[0] for first appear form in page Corrected:

 function validate_frm_new_user_request()_x000D_
{_x000D_
    alert('test');_x000D_
    var valid = true;_x000D_
_x000D_
    if ( document.forms.frm_new_user_request.u_userid.value == "" )_x000D_
    {_x000D_
        alert ( "Please enter your valid ISID Information." );_x000D_
        document.forms.frm_new_user_request.u_userid.focus();_x000D_
        valid = false;_x000D_
  console.log("FALSE::Empty Value ");_x000D_
    }_x000D_
return valid;_x000D_
}

<html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">_x000D_
<head>_x000D_
    <title></title>_x000D_
    <meta content="text/html;charset=UTF-8" http-equiv="content-type" />_x000D_
_x000D_
_x000D_
</head>_x000D_
<body>_x000D_
<form method="post" action="" name="frm_new_user_request" id="frm_new_user_request" onsubmit="return validate_frm_new_user_request();">_x000D_
<center>_x000D_
<table>_x000D_
_x000D_
        <tr align="left">_x000D_
            <td><Label>ISID<em>*:</Label><input maxlength="15" id="u_userid" name="u_userid" size="20" type="text"/></td>_x000D_
            </tr>_x000D_
_x000D_
<tr>_x000D_
            <td align="center" colspan="4">_x000D_
                <input type="image" src="btn.png" border="0" ALT="Create New Request">_x000D_
_x000D_
                </td>_x000D_
        </tr>_x000D_
    </table>_x000D_
</form>_x000D_
</body>_x000D_
</html>

Several of the other answers come close, but honestly, I think you're better off going with the cleanest, simplest syntax. The OP requested a means of exporting a class in ES6 / ES2015. I don't think you can get much cleaner than this:

'use strict';

export default class ClassName {
  constructor () {
  }
}

You can use indexOf(). Like:

var Color = ["blue", "black", "brown", "gold"];
var a = Color.indexOf("brown");
alert(a);

The indexOf() method searches the array for the specified item, and returns its position. And return -1 if the item is not found.

If you want to search from end to start, use the lastIndexOf() method:

    var Color = ["blue", "black", "brown", "gold"];
    var a = Color.lastIndexOf("brown");
    alert(a);

The search will start at the specified position, or at the end if no start position is specified, and end the search at the beginning of the array.

Returns -1 if the item is not found.

Is this what you required?

var Parent = React.createClass({
  doSomething: function(value) {
  }
  render: function() {
    return  <div>
              <Child doSome={this.doSomething} />
            </div>
  }
})

var Child = React.createClass({
  onClick:function() {
    this.props.doSome(value); // doSomething is undefined
  },  
  render: function() {
    return  <div onClick={this.onClick}></div>
  }
})

you have to bind new event with this keyword as i mention below...

class Counter extends React.Component {
    constructor(props) {
        super(props);

        this.state = {
            count : 1
        };

        this.delta = this.delta.bind(this);
    }

    delta() {
        this.setState({
            count : this.state.count++
        });
    }

    render() {
        return (
            <div>
                <h1>{this.state.count}</h1>
                <button onClick={this.delta}>+</button>
            </div>
        );
      }
    }

After enough googling I found the answer from controller you need only a backslash like return \Response::json(['success' => 'hi, atiq']); . Or you can just return the array return array('success' => 'hi, atiq'); which will be rendered as json in Laravel version 5.2 .

Exporting without default means it's a "named export". You can have multiple named exports in a single file. So if you do this,

class Template {}
class AnotherTemplate {}

export { Template, AnotherTemplate }

then you have to import these exports using their exact names. So to use these components in another file you'd have to do,

import {Template, AnotherTemplate} from './components/templates'

Alternatively if you export as the default export like this,

export default class Template {}

Then in another file you import the default export without using the {}, like this,

import Template from './components/templates'

There can only be one default export per file. In React it's a convention to export one component from a file, and to export it is as the default export.

You're free to rename the default export as you import it,

import TheTemplate from './components/templates'

And you can import default and named exports at the same time,

import Template,{AnotherTemplate} from './components/templates'

The lookup module of ansible works fine for me. The yml is:

- hosts: test
  vars:
    time: "{{ lookup('pipe', 'date -d \"1 day ago\" +\"%Y%m%d\"') }}"

You can replace any command with date to get result of the command.

To fix this error on Centos 7:

1. Install PHP extension:

   sudo yum install php-xml

2. Restart your web server. In my case it's php-fpm:

   services php-fpm restart

for this find the given Object in an Array, a basic usage example of _.find

const array = 
[
{
    description: 'object1', id: 1
},
{
    description: 'object2', id: 2
},
{
    description: 'object3', id: 3
},
{
    description: 'object4', id: 4
}
];

this would work well

q = _.find(array, {id:'4'}); // delete id

console.log(q); // {description: 'object4', id: 4}

_.find will help with returning an element in an array, rather than it’s index. So if you have an array of objects and you want to find a single object in the array by a certain key value pare _.find is the right tools for the job.

put this line in parent construct : $this->load->database();

function  __construct() {
    parent::__construct();
    $this->load->library('lib_name');
    $model=array('model_name');
    $this->load->model($model);
    $this->load->database();
}

this way.. it should work..

A very simple example of this

import React, { Component } from 'react';
import { View, Text } from 'react-native';

export default class App extends React.Component  {

    constructor(props) {
      super(props);

      this.state = {
        data : null
      };
    }

    componentWillMount() {
        this.renderMyData();
    }

    renderMyData(){
        fetch('https://your url')
            .then((response) => response.json())
            .then((responseJson) => {
              this.setState({ data : responseJson })
            })
            .catch((error) => {
              console.error(error);
            });
    }

    render(){
        return(
            <View>
                {this.state.data ? <MyComponent data={this.state.data} /> : <MyLoadingComponnents /> }
            </View>
        );
    }
}

here's angular 5 method version of this with unminified syntax for those who struggling with that y, z, tt in accepted answer. usage: parseXlsx().subscribe((data)=> {...})

parseXlsx() {
    let self = this;
    return Observable.create(observer => {
        this.http.get('./assets/input.xlsx', { responseType: 'arraybuffer' }).subscribe((data: ArrayBuffer) => {
            const XLSX = require('xlsx');
            let file = new Uint8Array(data);
            let workbook = XLSX.read(file, { type: 'array' });
            let sheetNamesList = workbook.SheetNames;

            let allLists = {};
            sheetNamesList.forEach(function (sheetName) {
                let worksheet = workbook.Sheets[sheetName];
                let currentWorksheetHeaders: object = {};
                let data: Array<any> = [];
                for (let cellName in worksheet) {//cellNames example: !ref,!margins,A1,B1,C1

                    //skipping serviceCells !margins,!ref
                    if (cellName[0] === '!') {
                        continue
                    };

                    //parse colName, rowNumber, and getting cellValue
                    let numberPosition = self.getCellNumberPosition(cellName);
                    let colName = cellName.substring(0, numberPosition);
                    let rowNumber = parseInt(cellName.substring(numberPosition));
                    let cellValue = worksheet[cellName].w;// .w is XLSX property of parsed worksheet

                    //treating '-' cells as empty on Spot Indices worksheet
                    if (cellValue.trim() == "-") {
                        continue;
                    }

                    //storing header column names
                    if (rowNumber == 1 && cellValue) {
                        currentWorksheetHeaders[colName] = typeof (cellValue) == "string" ? cellValue.toCamelCase() : cellValue;
                        continue;
                    }

                    //creating empty object placeholder to store current row
                    if (!data[rowNumber]) {
                        data[rowNumber] = {}
                    };

                    //if header is date - for spot indices headers are dates
                    data[rowNumber][currentWorksheetHeaders[colName]] = cellValue;

                }

                //dropping first two empty rows
                data.shift();
                data.shift();
                allLists[sheetName.toCamelCase()] = data;
            });

            this.parsed = allLists;

            observer.next(allLists);
            observer.complete();
        })
    });
}

The key is calling the parent's method using super.methodName();

class A {
    // A protected method
    protected doStuff()
    {
        alert("Called from A");
    }

    // Expose the protected method as a public function
    public callDoStuff()
    {
        this.doStuff();
    }
}

class B extends A {

    // Override the protected method
    protected doStuff()
    {
        // If we want we can still explicitly call the initial method
        super.doStuff();
        alert("Called from B");
    }
}

var a = new A();
a.callDoStuff(); // Will only alert "Called from A"

var b = new B()
b.callDoStuff(); // Will alert "Called from A" then "Called from B"

Try it here

To complete the other answers, in lodash 4 to ignore only undefined and null (And not properties like false) you can use a predicate in _.pickBy:

_.pickBy(obj, v !== null && v !== undefined)

Example below :

const obj = { a: undefined, b: 123, c: true, d: false, e: null};_x000D_
_x000D_
const filteredObject = _.pickBy(obj, v => v !== null && v !== undefined);_x000D_
_x000D_
console.log = (obj) => document.write(JSON.stringify(filteredObject, null, 2));_x000D_
console.log(filteredObject);

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.10/lodash.js"></script>

You can always do the following:

const SomeCall = request.get(res => { 

const Store = []; 
Store.push(res.data);

Store.forEach(item => { DoSomethingNeat 
});
}); 

DateTime is not a function, but the class.

When you just reference a class like new DateTime() PHP searches for the class in your current namespace. However the DateTime class obviously doesn't exists in your controllers namespace but rather in root namespace.

You can either reference it in the root namespace by prepending a backslash:

$now = new \DateTime();

Or add an import statement at the top:

use DateTime;

$now = new DateTime();

Thanks @Trott for your code, I just used the same code and added with a real time working example for the benefit of others.

<html>_x000D_
<body >_x000D_
_x000D_
<p>The **instanceof** operator returns true if the specified object is an instance of the specified object.</p>_x000D_
_x000D_
_x000D_
_x000D_
<script>_x000D_
 var myError = new Error("TypeError: Cannot set property 'innerHTML' of null"); // error type when element is not defined_x000D_
 myError instanceof Error // true_x000D_
 _x000D_
 _x000D_
 _x000D_
 _x000D_
 function test(){_x000D_
 _x000D_
 var v1 = document.getElementById("myid").innerHTML ="zunu"; // to change with this_x000D_
 _x000D_
 try {_x000D_
    var v1 = document.getElementById("myidd").innerHTML ="zunu"; // exception caught_x000D_
    } _x000D_
    _x000D_
 catch (e) {_x000D_
    if (e instanceof Error) {_x000D_
   console.error(e.name + ': ' + e.message) // error will be displayed at browser console_x000D_
    }_x000D_
  }_x000D_
  finally{_x000D_
  var v1 = document.getElementById("myid").innerHTML ="Text Changed to Zunu"; // finally innerHTML changed to this._x000D_
 }_x000D_
 _x000D_
 }_x000D_
 _x000D_
</script>_x000D_
<p id="myid">This text will change</p>_x000D_
<input type="button" onclick="test();">_x000D_
</body>_x000D_
</html>

I am adding this answer mainly because I can't comment above! I found it was the comment by @Nicki and her jsfiddle, https://jsfiddle.net/57co6c95/, that eventually got this working for me.

Among other things, it gave examples of the format for the json needed. The only change I had to make was that my initial results were returned in the same format as the other ajax call so I had to use

$option.text(data[0].text).val(data[0].id);

rather than

$option.text(data.text).val(data.id);

You can try this as well:

public function showstudents(){
   $students = DB::table('student')->get();
   return view("user/regprofile", ['students'=>$students]);
}

Also, use this variable in your view.blade file to get students name and other columns:

{{$students['name']}}

To check is variable is set you need to use isset function.

$lorem = 'potato';

if(isset($lorem)){
    echo 'isset true' . '<br />';
}else{
    echo 'isset false' . '<br />';
}

if(isset($ipsum)){
    echo 'isset true' . '<br />';
}else{
    echo 'isset false' . '<br />';
}

this code will print:

isset true
isset false

read more in https://php.net/manual/en/function.isset.php

what worked for me is converting the props.data to an array using data = Array.from(props.data); then I could use the data.map() function

As per latest Ansible Version 2.5, to check if a variable is defined and depending upon this if you want to run any task, use undefined keyword.

tasks:
    - shell: echo "I've got '{{ foo }}' and am not afraid to use it!"
      when: foo is defined

    - fail: msg="Bailing out. this play requires 'bar'"
      when: bar is undefined

Ansible Documentation

I`ve written

React.component

instead of React.Component That was my issue)) and was looking for this more than half an hour.

I have the same problem with a element in a webform. So what I did to fix it was validate. if(Object === 'null') do something

For MongoDB 3.6 and newer:

The $expr operator allows the use of aggregation expressions within the query language, thus you can leverage the use of $strLenCP operator to check the length of the string as follows:

db.usercollection.find({ 
    "name": { "$exists": true },
    "$expr": { "$gt": [ { "$strLenCP": "$name" }, 40 ] } 
})

For MongoDB 3.4 and newer:

You can also use the aggregation framework with the $redact pipeline operator that allows you to proccess the logical condition with the $cond operator and uses the special operations $$KEEP to "keep" the document where the logical condition is true or $$PRUNE to "remove" the document where the condition was false.

This operation is similar to having a $project pipeline that selects the fields in the collection and creates a new field that holds the result from the logical condition query and then a subsequent $match, except that $redact uses a single pipeline stage which is more efficient.

As for the logical condition, there are String Aggregation Operators that you can use $strLenCP operator to check the length of the string. If the length is $gt a specified value, then this is a true match and the document is "kept". Otherwise it is "pruned" and discarded.

Consider running the following aggregate operation which demonstrates the above concept:

db.usercollection.aggregate([
    { "$match": { "name": { "$exists": true } } },
    {
        "$redact": {
            "$cond": [
                { "$gt": [ { "$strLenCP": "$name" }, 40] },
                "$$KEEP",
                "$$PRUNE"
            ]
        }
    },
    { "$limit": 2 }
])

If using $where, try your query without the enclosing brackets:

db.usercollection.find({$where: "this.name.length > 40"}).limit(2);

A better query would be to to check for the field's existence and then check the length:

db.usercollection.find({name: {$type: 2}, $where: "this.name.length > 40"}).limit(2); 

or:

db.usercollection.find({name: {$exists: true}, $where: "this.name.length > 
40"}).limit(2); 

MongoDB evaluates non-$where query operations before $where expressions and non-$where query statements may use an index. A much better performance is to store the length of the string as another field and then you can index or search on it; applying $where will be much slower compared to that. It's recommended to use JavaScript expressions and the $where operator as a last resort when you can't structure the data in any other way, or when you are dealing with a small subset of data.

A different and faster approach that avoids the use of the $where operator is the $regex operator. Consider the following pattern which searches for

db.usercollection.find({"name": {"$type": 2, "$regex": /^.{41,}$/}}).limit(2); 

Note - From the docs:

If an index exists for the field, then MongoDB matches the regular expression against the values in the index, which can be faster than a collection scan. Further optimization can occur if the regular expression is a “prefix expression”, which means that all potential matches start with the same string. This allows MongoDB to construct a “range” from that prefix and only match against those values from the index that fall within that range.

A regular expression is a “prefix expression” if it starts with a caret (^) or a left anchor (\A), followed by a string of simple symbols. For example, the regex /^abc.*/ will be optimized by matching only against the values from the index that start with abc.

Additionally, while /^a/, /^a.*/, and /^a.*$/ match equivalent strings, they have different performance characteristics. All of these expressions use an index if an appropriate index exists; however, /^a.*/, and /^a.*$/ are slower. /^a/ can stop scanning after matching the prefix.

There is no error when I use your code,

but I am calling the hasLetter method like this:

hasLetter("a",words);

For macOS with zshrc:

ANDROID_HOME is depreciated, use ANDROID_SDK_ROOT instead

1. Ensure that Android Build Tools is installed. Check if it exists in your File Directory
2. Get the path to your SDK. Usually it is /Users/<USER>/Library/Android/sdk
3. Add ANDROID_SDK_ROOT as a path to your Environment variables: echo 'export ANDROID_SDK_ROOT=/Users/<USER>/Library/Android/sdk' >> ~/.zshenv
4. Apply the changes with source ~/.zshrc
5. Check if it was saved by ...
   • ... checking the specific environment variable echo $ANDROID_SDK_ROOT
   • ... checking the complete list of environment variables on your system env

You can apply this process to every environment variable beeing installed on your macOS system. It took me a while to comprehend it for myself

For me, I changed class='carousel-item' to class='item' like this

<div class="item">
    <img class="img-responsive" src="..." alt="...">
</div>

Since TypeScript is a typed superset of ES6 JavaScript. And lodash are a library of javascript.

Using lodash to checks if value is null or undefined can be done using _.isNil().

_.isNil(value)

Arguments

value (*): The value to check.

Returns

(boolean): Returns true if value is nullish, else false.

Example

_.isNil(null);
// => true

_.isNil(void 0);
// => true

_.isNil(NaN);
// => false

Link

Lodash Docs

I got it fixed by running "C:\Program Files\Android\android-sdk\AVD Manager.exe" and repairing my broken device.

You may wonder, why the syntax is valid (but not working as expected):

var func = p => { foo: "bar" }

It's because of JavaScript's label syntax:

So if you transpile the above code to ES5, it should look like:

var func = function (p) {
  foo:
  "bar"; //obviously no return here!
}

Use ?? , 'or' not supported in updated version.

{{ $usersType or '' }}  ?
{{ $usersType ?? '' }} ?

In my case I solved the problem by establishing a valid column number when applying the order property inside the script where you configure the data table.

var table = $('#mytable').DataTable({
     .
     .
     .
     order: [[ 1, "desc" ]],

In CurrentGame component you need to change initial state because you are trying use loop for participants but this property is undefined that's why you get error.,

getInitialState: function(){
    return {
       data: {
          participants: [] 
       }
    };
},

also, as player in .map is Object you should get properties from it

this.props.data.participants.map(function(player) {
   return <li key={player.championId}>{player.summonerName}</li>
   // -------------------^^^^^^^^^^^---------^^^^^^^^^^^^^^
})

Example

Makefiles

If you're working with a makefile and you ended up here like me, then this is probably what you're looking or:

If you're using a makefile, then you need to change cc as shown below

my_executable : main.o
    cc -o my_executable main.o

to

CC = g++

my_executable : main.o
    $(CC) -o my_executable main.o

I ran into the same issue with Go11, just wanted to share how I did solve it for helping others just in case they run into the same issue.

I had my Go project outside $GOPATH, so I had to turned on GO111MODULE=on without this option turned on, it will give you this issue; even if you you try to build or test the whole package or directory it won't be solved without GO111MODULE=on

var express = require('express')

app = module.exports = express();
var secureServer = require('http').createServer(app);
secureServer.listen(3001);

var aws = require('aws-sdk')
var multer = require('multer')
var multerS3 = require('multer-s3')

    aws.config.update({
    secretAccessKey: "XXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
    accessKeyId: "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
    region: 'us-east-1'
    });
    s3 = new aws.S3();

   var upload = multer({
   storage: multerS3({
    s3: s3,
    dirname: "uploads",
    bucket: "Your bucket name",
    key: function (req, file, cb) {
        console.log(file);
        cb(null, "uploads/profile_images/u_" + Date.now() + ".jpg"); //use  
     Date.now() for unique file keys
    }
  })
   });

 app.post('/upload', upload.single('photos'), function(req, res, next) {

 console.log('Successfully uploaded ', req.file)

 res.send('Successfully uploaded ' + req.file.length + ' files!')

})

There are two pages: Pageone.html :

<script>
var hello = "hi"
location.replace("http://example.com/PageTwo.html?" + hi + "");
</script>

PageTwo.html :

<script>
var link = window.location.href;
link = link.replace("http://example.com/PageTwo.html?","");
document.write("The variable contained this content:" + link + "");
</script>

Hope it helps!

What do I need to do to make this function wait for the result of the promise?

Use async/await (NOT Part of ECMA6, but available for Chrome, Edge, Firefox and Safari since end of 2017, see canIuse)
MDN

    async function waitForPromise() {
        // let result = await any Promise, like:
        let result = await Promise.resolve('this is a sample promise');
    }

Added due to comment: An async function always returns a Promise, and in TypeScript it would look like:

    async function waitForPromise(): Promise<string> {
        // let result = await any Promise, like:
        let result = await Promise.resolve('this is a sample promise');
    }

1. Go to Advanced System Settings in the computer properties
2. Click on Advanced
3. Click for the environment variable
4. Choose the path option
5. Change the path option to bin folder of dev c
6. Apply and save it
7. Now resave the code in the bin folder in developer c

Since $http.get returns a 'promise' with the extra convenience methods success and error (which just wrap the result of then) you should be able to use (regardless of your Angular version):

$http.get('/someUrl')
    .then(function success(response) {
        console.log('succeeded', response); // supposed to have: data, status, headers, config, statusText
    }, function error(response) {
        console.log('failed', response); // supposed to have: data, status, headers, config, statusText
    })

Not strictly an answer to the question, but if you're getting bitten by the "my version of Angular is different than the docs" issue you can always dump all of the arguments, even if you don't know the appropriate method signature:

$http.get('/someUrl')
  .success(function(data, foo, bar) {
    console.log(arguments); // includes data, status, etc including unlisted ones if present
  })
  .error(function(baz, foo, bar, idontknow) {
    console.log(arguments); // includes data, status, etc including unlisted ones if present
  });

Then, based on whatever you find, you can 'fix' the function arguments to match.

Include: #include<stdlib.h>

and use System("cls") instead of clrscr()

       var request = require('request');
        request({
            url: "http://localhost:8001/xyz",
            json: true,
            headers: {
                "content-type": "application/json",
            },
            body: JSON.stringify(requestData)
        }, function(error, response, body) {
            console.log(response);
        });

While saving the response of get request, same error was thrown on Python 3.7 on window 10. The response received from the URL, encoding was UTF-8 so it is always recommended to check the encoding so same can be passed to avoid such trivial issue as it really kills lots of time in production

import requests
resp = requests.get('https://en.wikipedia.org/wiki/NIFTY_50')
print(resp.encoding)
with open ('NiftyList.txt', 'w') as f:
    f.write(resp.text)

When I added encoding="utf-8" with the open command it saved the file with the correct response

with open ('NiftyList.txt', 'w', encoding="utf-8") as f:
    f.write(resp.text)

yum update

helped me out. After I had

wget: symbol lookup error: wget: undefined symbol: psl_latest

Using undefined to make a decision is usually a sign of bad design in Javascript. You might consider doing something else.

However, to answer your question: I think the best way of doing so would be adding a helper function.

$scope.isUndefined = function (thing) {
    return (typeof thing === "undefined");
}

and in the template

<div ng-show="isUndefined(foo)"></div>

Make sure to set cwd in the pm2 config to the correct directory for any calls to dotenv.config().

Example: Your index.js file is in /app/src, your .env file is in /app. Your index.js file has this

dotenv.config({path: "../.env"});

Your pm2 json config should have this: "cwd": "/app/src", "script": "index.js"

You could also use dotenv.config({path: path.join(__dirname, "../.env")}); to avoid the CWD issue. You will still have a problem if you move the .env or the index.js file relative to each other.

You are not getting value of $id=$_GET['id'];

And you are using it (before it gets initialised).

Use php's in built isset() function to check whether the variable is defied or not.

So, please update the line to:

$id = isset($_GET['id']) ? $_GET['id'] : '';

Yes, I think the library you are using is not compatible with 64 bit version but you can solve the problem -

Just navigate to Build Settings>Architectures & replace $(ARCHS_STANDARD) to $(ARCHS_STANDARD_32_BIT)

So that your xcode build your project with 32 bit supported version.

Many use the build scripts found either here: http://www.raywenderlich.com/41377/creating-a-static-library-in-ios-tutorial or here: https://gist.github.com/sponno/7228256 for their run script in their target.

I was pulling my hair out trying to add x86_64, i386, armv7s, armv7, and arm64 to the Architectures section, only to find lipo -info targetname.a never returning these architectures after a successful build.

In my case, I had to modify the target runscript, specifically step 1 from the gist link, to manually include the architectures using -arch.

Step 1. Build Device and Simulator versions xcodebuild -target ${PROJECT_NAME} ONLY_ACTIVE_ARCH=NO -configuration ${CONFIGURATION} -sdk iphoneos BUILD_DIR="${BUILD_DIR}" BUILD_ROOT="${BUILD_ROOT}" xcodebuild -target ${PROJECT_NAME} -configuration ${CONFIGURATION} -sdk iphonesimulator -arch x86_64 -arch i386 -arch armv7 -arch armv7s -arch arm64 BUILD_DIR="${BUILD_DIR}" BUILD_ROOT="${BUILD_ROOT}"

I have got this error in the following 2 ways:

I was getting this error when I was pushing into another UIViewController.

HOWEVER by mistake I subclassed the other class from UITabBarController and was getting this error.

How I got it fixed? I subclassed from UIViewController and I was no longer crashing :)

I didn't want to use storyboard. So I deleted it. Yet I forget to delete its reference in the Project settings. I just clicked on the project >> General >> Deployment Info >> and I then I set the Main Interface to black space. (It was previously set to main)

As you can see for the both situations you're getting an error for accessing some object that does exist...

Pass the object from controller to view, convert it to markup without encoding, and parse it to json.

@model IEnumerable<CollegeInformationDTO>

@section Scripts{
    <script>
          var jsArray = JSON.parse('@Html.Raw(Json.Encode(@Model))');
    </script>
}

Now I return Object. I don't know better solution, but it works.

@RequestMapping(value="", method=RequestMethod.GET, produces=MediaType.APPLICATION_JSON_VALUE)
public @ResponseBody ResponseEntity<Object> getAll() {
    List<Entity> entityList = entityManager.findAll();

    List<JSONObject> entities = new ArrayList<JSONObject>();
    for (Entity n : entityList) {
        JSONObject Entity = new JSONObject();
        entity.put("id", n.getId());
        entity.put("address", n.getAddress());
        entities.add(entity);
    }
    return new ResponseEntity<Object>(entities, HttpStatus.OK);
}

var datatable_jquery_script = document.createElement("script");
datatable_jquery_script.src = "vendor/datatables/jquery.dataTables.min.js";
document.body.appendChild(datatable_jquery_script);
setTimeout(function(){
    var datatable_bootstrap_script = document.createElement("script");
    datatable_bootstrap_script.src = "vendor/datatables/dataTables.bootstrap4.min.js";
    document.body.appendChild(datatable_bootstrap_script);
},100);

I used setTimeOut to make sure datatables.min.js loads first. I inspected the waterfall loading of each, bootstrap4.min.js always loads first.

A list of HTTP Status Codes

The good-practice regarding status response is to, predictably, send the proper HTTP status code depending on the error (4xx for client errors, 5xx for server errors), regarding the actual JSON response there's no "bible" but a good idea could be to send (again) the status and data as 2 different properties of the root object in a successful response (this way you are giving the client the chance to capture the status from the HTTP headers and the payload itself) and a 3rd property explaining the error in a human-understandable way in the case of an error.

Stripe's API behaves similarly in the real world.

i.e.

OK

200, {status: 200, data: [...]}

Error

400, {status: 400, data: null, message: "You must send foo and bar to baz..."}

var Hello = React.createClass({
    render: function() {
      return (
        <div className="divClass">
           <img src={this.props.url} alt={`${this.props.title}'s picture`}  className="img-responsive" />
           <span>Hello {this.props.name}</span>
        </div>
      );
    }
});

In my situation this error appeared when I didn't declare function within an array argument.

The one with error:

taskAppControllers.controller('MainMenuCtrl', []);

The fixed one:

taskAppControllers.controller('MainMenuCtrl', [function(){

}]);

You have to select and send the form data as well:

$("#post-btn").click(function(){        
    $.post("process.php", $("#reg-form").serialize(), function(data) {
        alert(data);
    });
});

Take a look at the documentation for the jQuery serialize method, which encodes the data from the form fields into a data-string to be sent to the server.

Your code is fine. What you are seeing is a linker issue.

If you put your code in a single file like this:

#include <iostream>
#include <string>

using namespace std;

string trim(const string& str)
{
    size_t first = str.find_first_not_of(' ');
    if (string::npos == first)
    {
        return str;
    }
    size_t last = str.find_last_not_of(' ');
    return str.substr(first, (last - first + 1));
}

int main() {
    string s = "abc ";
    cout << trim(s);

}

then do g++ test.cc and run a.out, you will see it works.

You should check if the file that contains the trim function is included in the link stage of your compilation process.

On a Mac, you need to use this command:

STATIC_DEPS=true sudo pip install lxml

Just check the length of files property, which is a FileList object contained on the input element

if( document.getElementById("videoUploadFile").files.length == 0 ){
    console.log("no files selected");
}

Try this:

item.shipping!==undefined

You simply misspelled $stateParam, it should be $stateParams (with an s). That's why you get undefined ;)

var obj = { a: 1, b: undefined, c: 3 }

To remove undefined props in an object we use like this

JSON.parse(JSON.stringify(obj));

Output: {a: 1, c: 3}

I had encountered the same issue but I was generating table Dynamically. In my case, my table had missing <thead> and <tbody> tags.

here is my code snippet if it helped somebody

   //table string
   var strDiv = '<table id="tbl" class="striped center responsive-table">';

   //add headers
   var strTable = ' <thead><tr id="tableHeader"><th>Customer Name</th><th>Customer Designation</th><th>Customer Email</th><th>Customer Organization</th><th>Customer Department</th><th>Customer ContactNo</th><th>Customer Mobile</th><th>Cluster Name</th><th>Product Name</th><th> Installed Version</th><th>Requirements</th><th>Challenges</th><th>Future Expansion</th><th>Comments</th></tr> </thead> <tbody>';


  //add data
  $.each(data, function (key, GetCustomerFeedbackBE) {
                            strTable = strTable + '<tr><td>' + GetCustomerFeedbackBE.StrCustName + '</td><td>' + GetCustomerFeedbackBE.StrCustDesignation + '</td><td>' + GetCustomerFeedbackBE.StrCustEmail + '</td><td>' + GetCustomerFeedbackBE.StrCustOrganization + '</td><td>' + GetCustomerFeedbackBE.StrCustDepartment + '</td><td>' + GetCustomerFeedbackBE.StrCustContactNo + '</td><td>' + GetCustomerFeedbackBE.StrCustMobile + '</td><td>' + GetCustomerFeedbackBE.StrClusterName + '</td><td>' + GetCustomerFeedbackBE.StrProductName + '</td><td>' + GetCustomerFeedbackBE.StrInstalledVersion + '</td><td>' + GetCustomerFeedbackBE.StrRequirements + '</td><td>' + GetCustomerFeedbackBE.StrChallenges + '</td><td>' + GetCustomerFeedbackBE.StrFutureExpansion + '</td><td>' + GetCustomerFeedbackBE.StrComments + '</td></tr>';
                        });

//add end of tbody
 strTable = strTable + '</tbody></table>';

//insert table into a div                 
   $('#divCFB_D').html(strDiv);
   $('#tbl').html(strTable);


    //finally add export buttons 
   $('#tbl').DataTable({
                            dom: 'Bfrtip',
                            buttons: [
                                'copy', 'csv', 'excel', 'pdf', 'print'
                            ]
                        });

So this may not be the issue for you, but I was struggling with this error. I discovered what was causing my problem, though I can't really explain as to why.

For me, mysqli_connect was working fine where the connection was made on pages in any various sub-directory. For some reason though, the same code referenced on pages in the root directory was returning this error. The strange thing is that it was working fine on my localhost environment in MAMP in the root directory, however on my shared host it was not.

After struggling to figure out what was giving me "Error 500" white screen from this "PHP Fatal Error," I went through the code and stumbled upon this code in the error handling that was suggested by the PHP Manual (https://www.php.net/manual/en/mysqli.error.php).

if (!mysqli_query($link, "SET a=1")) {
    printf("Error message: %s\n", mysqli_error($link));
}

I randomly decided to remove it and, voila, connection to the database working in root directories. Maybe someone smarter than me can explain this, for anyone struggling with a similar issue.

I had this error because I didn't understand the difference between angular.module('myApp', []) and angular.module('myApp').

This creates the module 'myApp' and overwrites any existing module named 'myApp':

angular.module('myApp', [])

This retrieves an existing module 'myApp':

angular.module('myApp')

I had been overwriting my module in another file, using the first call above which created another module instead of retrieving as I expected.

More detail here: https://docs.angularjs.org/guide/module

Adding the "x_ua_compatible" tag to the page didn't work for me. Instead I added it as an HTTP Respone Header via IIS and that worked fine.

In IIS Manager select the site then open HTTP Response Headers and click Add:

The site didn't need restarting, but I did need to Ctrl+F5 to force the page to reload.

If you are using laragon open the php.ini

In the interface of laragon menu-> php-> php.ini

when you open the file look for ; extension_dir = "./"

create another one without **; ** with the path of your php version to the folder ** ext ** for example

extension_dir = "C: \ laragon \ bin \ php \ php-7.3.11-Win32-VC15-x64 \ ext"

change it save it

You do not need to give an index.

Instead of doing order[0].push(a[i]), just do order.push(a[i]).

TypeError: Cannot read property 'then' of undefined when calling a Django service using AngularJS.

If you are calling a Python service, the code will look like below:

this.updateTalentSupplier=function(supplierObj){
  var promise = $http({
    method: 'POST',
      url: bbConfig.BWS+'updateTalentSupplier/',
      data:supplierObj,
      withCredentials: false,
      contentType:'application/json',
      dataType:'json'
    });
    return promise; //Promise is returned 
}

We are using MongoDB as the database(I know it doesn't matter. But if someone is searching with MongoDB + Python (Django) + AngularJS the result should come.

Here is a functional ES6 way of iterating over a NodeList. This method uses the Array's forEach like so:

Array.prototype.forEach.call(element.childNodes, f)

Where f is the iterator function that receives a child nodes as it's first parameter and the index as the second.

If you need to iterate over NodeLists more than once you could create a small functional utility method out of this:

const forEach = f => x => Array.prototype.forEach.call(x, f);

// For example, to log all child nodes
forEach((item) => { console.log(item); })(element.childNodes)

// The functional forEach is handy as you can easily created curried functions
const logChildren = forEach((childNode) => { console.log(childNode); })
logChildren(elementA.childNodes)
logChildren(elementB.childNodes)

(You can do the same trick for map() and other Array functions.)

The error occur mainly becuase the array isnt found. Just check if you have mapped to the correct array. Check the array name or declaration.

You can do this using dataset property of the element, using with or without jquery it work... i'm not aware of old browser Note: that when you use dash ('-') sign, you need to use capital case. Eg. a-b => aB

function onContentLoad() {_x000D_
  var item = document.getElementById("id1");_x000D_
  var x = item.dataset.x;_x000D_
  var data = item.dataset.myData;_x000D_
_x000D_
  var resX = document.getElementById("resX");_x000D_
  var resData = document.getElementById("resData");_x000D_
_x000D_
  resX.innerText = x;_x000D_
  resData.innerText = data;_x000D_
_x000D_
  console.log(x);_x000D_
  console.log(data);_x000D_
}

<body onload="onContentLoad()">_x000D_
  <div id="id1" data-x="a" data-my-data="b"></div>_x000D_
_x000D_
  Read 'x':_x000D_
  <label id="resX"></label>_x000D_
  <br/>Read 'my-data':_x000D_
  <label id="resData"></label>_x000D_
</body>

You want to do the check for undefined first. If you do it the other way round, it will generate an error if the array is undefined.

if (array === undefined || array.length == 0) {
    // array empty or does not exist
}

Update

This answer is getting a fair amount of attention, so I'd like to point out that my original answer, more than anything else, addressed the wrong order of the conditions being evaluated in the question. In this sense, it fails to address several scenarios, such as null values, other types of objects with a length property, etc. It is also not very idiomatic JavaScript.

The foolproof approach
Taking some inspiration from the comments, below is what I currently consider to be the foolproof way to check whether an array is empty or does not exist. It also takes into account that the variable might not refer to an array, but to some other type of object with a length property.

if (!Array.isArray(array) || !array.length) {
  // array does not exist, is not an array, or is empty
  // ? do not attempt to process array
}

To break it down:

1. Array.isArray(), unsurprisingly, checks whether its argument is an array. This weeds out values like null, undefined and anything else that is not an array.
   Note that this will also eliminate array-like objects, such as the arguments object and DOM NodeList objects. Depending on your situation, this might not be the behavior you're after.

2. The array.length condition checks whether the variable's length property evaluates to a truthy value. Because the previous condition already established that we are indeed dealing with an array, more strict comparisons like array.length != 0 or array.length !== 0 are not required here.

The pragmatic approach
In a lot of cases, the above might seem like overkill. Maybe you're using a higher order language like TypeScript that does most of the type-checking for you at compile-time, or you really don't care whether the object is actually an array, or just array-like.

In those cases, I tend to go for the following, more idiomatic JavaScript:

if (!array || !array.length) {
    // array or array.length are falsy
    // ? do not attempt to process array
}

Or, more frequently, its inverse:

if (array && array.length) {
    // array and array.length are truthy
    // ? probably OK to process array
}

With the introduction of the optional chaining operator (Elvis operator) in ECMAScript 2020, this can be shortened even further:

if (!array?.length) {
    // array or array.length are falsy
    // ? do not attempt to process array
}

Or the opposite:

if (array?.length) {
    // array and array.length are truthy
    // ? probably OK to process array
}

follow this tutorial. i ran the install-opencv.sh file in bash. its in the tutorial

read the example from openCV

CMakeLists.txt

cmake_minimum_required(VERSION 3.7)
project(openCVTest)
# cmake needs this line
cmake_minimum_required(VERSION 2.8)

# Define project name
project(opencv_example_project)

# Find OpenCV, you may need to set OpenCV_DIR variable
# to the absolute path to the directory containing OpenCVConfig.cmake file
# via the command line or GUI
find_package(OpenCV REQUIRED)

# If the package has been found, several variables will
# be set, you can find the full list with descriptions
# in the OpenCVConfig.cmake file.
# Print some message showing some of them
message(STATUS "OpenCV library status:")
message(STATUS "    version: ${OpenCV_VERSION}")
message(STATUS "    libraries: ${OpenCV_LIBS}")
message(STATUS "    include path: ${OpenCV_INCLUDE_DIRS}")

if(CMAKE_VERSION VERSION_LESS "2.8.11")
    # Add OpenCV headers location to your include paths
    include_directories(${OpenCV_INCLUDE_DIRS})
endif()

# Declare the executable target built from your sources
add_executable(main main.cpp)

# Link your application with OpenCV libraries
target_link_libraries(main ${OpenCV_LIBS})

main.cpp

/**
 * @file LinearBlend.cpp
 * @brief Simple linear blender ( dst = alpha*src1 + beta*src2 )
 * @author OpenCV team
 */

#include "opencv2/imgcodecs.hpp"
#include "opencv2/highgui.hpp"
#include <stdio.h>

using namespace cv;

/** Global Variables */
const int alpha_slider_max = 100;
int alpha_slider;
double alpha;
double beta;

/** Matrices to store images */
Mat src1;
Mat src2;
Mat dst;

//![on_trackbar]
/**
 * @function on_trackbar
 * @brief Callback for trackbar
 */
static void on_trackbar( int, void* )
{
    alpha = (double) alpha_slider/alpha_slider_max ;

    beta = ( 1.0 - alpha );

    addWeighted( src1, alpha, src2, beta, 0.0, dst);

    imshow( "Linear Blend", dst );
}
//![on_trackbar]

/**
 * @function main
 * @brief Main function
 */
int main( void )
{
    //![load]
    /// Read images ( both have to be of the same size and type )
    src1 = imread("../data/LinuxLogo.jpg");
    src2 = imread("../data/WindowsLogo.jpg");
    //![load]

    if( src1.empty() ) { printf("Error loading src1 \n"); return -1; }
    if( src2.empty() ) { printf("Error loading src2 \n"); return -1; }

    /// Initialize values
    alpha_slider = 0;

    //![window]
    namedWindow("Linear Blend", WINDOW_AUTOSIZE); // Create Window
    //![window]

    //![create_trackbar]
    char TrackbarName[50];
    sprintf( TrackbarName, "Alpha x %d", alpha_slider_max );
    createTrackbar( TrackbarName, "Linear Blend", &alpha_slider, alpha_slider_max, on_trackbar );
    //![create_trackbar]

    /// Show some stuff
    on_trackbar( alpha_slider, 0 );

    /// Wait until user press some key
    waitKey(0);
    return 0;
}

Tested in linux mint 17

Is sku just a property of the Product model? If so:

$products = Product::whereOwnerAndStatus($owner, 0)->take($count)->get();

foreach ($products as $product ) {
  // Access $product->sku here...
}

Or is sku a relationship to another model? If that is the case, then, as long as your relationship is setup properly, you code should work.

og_date = "2012-10-01";
console.log(og_date); // => "2012-10-01"

console.log(og_date.split('-')); // => [ '2012', '10', '01' ]

og_date.value would only work if the date were stored as a property on the og_date object. Such as: var og_date = {}; og_date.value="2012-10-01"; In that case, your original console.log would work.

DSO here means Dynamic Shared Object; since the error message says it's missing from the command line, I guess you have to add it to the command line.

That is, try adding -lpthread to your command line.

The following correct answer was provided in the comment section of the question by Felix Kling:

if (!$.trim(data)){   
    alert("What follows is blank: " + data);
}
else{   
    alert("What follows is not blank: " + data);
}

simple solution is this:

game.js:

document.addEventListener('click', printMousePos, true);
function printMousePos(e){

      cursorX = e.pageX;
      cursorY= e.pageY;
      $( "#test" ).text( "pageX: " + cursorX +",pageY: " + cursorY );
}

It causes the error when you access $(this).val() when it called by change event this points to the invoker i.e. CourseSelect so it is working and and will get the value of CourseSelect. but when you manually call it this points to document. so either you will have to pass the CourseSelect object or access directly like $("#CourseSelect").val() instead of $(this).val().

Another option is to use multer, which uses busboy under the hood, but is simpler to set up.

var multer = require('multer');

Use multer and set the destination for the upload:

app.use(multer({dest:'./uploads/'}));

Create a form in your view, enctype='multipart/form-data is required for multer to work:

form(role="form", action="/", method="post", enctype="multipart/form-data")
    div(class="form-group")
        label Upload File
        input(type="file", name="myfile", id="myfile")

Then in your POST you can access the data about the file:

app.post('/', function(req, res) {
  console.dir(req.files);
});

A full tutorial on this can be found here.

Here's a more concise answer for people that are looking for a quick reference as well as some examples using promises and async/await.

Start with the naive approach (that doesn't work) for a function that calls an asynchronous method (in this case setTimeout) and returns a message:

function getMessage() {
  var outerScopeVar;
  setTimeout(function() {
    outerScopeVar = 'Hello asynchronous world!';
  }, 0);
  return outerScopeVar;
}
console.log(getMessage());

undefined gets logged in this case because getMessage returns before the setTimeout callback is called and updates outerScopeVar.

The two main ways to solve it are using callbacks and promises:

Callbacks

The change here is that getMessage accepts a callback parameter that will be called to deliver the results back to the calling code once available.

function getMessage(callback) {
  setTimeout(function() {
    callback('Hello asynchronous world!');
  }, 0);
}
getMessage(function(message) {
  console.log(message);
});

Promises

Promises provide an alternative which is more flexible than callbacks because they can be naturally combined to coordinate multiple async operations. A Promises/A+ standard implementation is natively provided in node.js (0.12+) and many current browsers, but is also implemented in libraries like Bluebird and Q.

function getMessage() {
  return new Promise(function(resolve, reject) {
    setTimeout(function() {
      resolve('Hello asynchronous world!');
    }, 0);
  });
}

getMessage().then(function(message) {
  console.log(message);  
});

jQuery Deferreds

jQuery provides functionality that's similar to promises with its Deferreds.

function getMessage() {
  var deferred = $.Deferred();
  setTimeout(function() {
    deferred.resolve('Hello asynchronous world!');
  }, 0);
  return deferred.promise();
}

getMessage().done(function(message) {
  console.log(message);  
});

async/await

If your JavaScript environment includes support for async and await (like Node.js 7.6+), then you can use promises synchronously within async functions:

function getMessage () {
    return new Promise(function(resolve, reject) {
        setTimeout(function() {
            resolve('Hello asynchronous world!');
        }, 0);
    });
}

async function main() {
    let message = await getMessage();
    console.log(message);
}

main();

Are you meaning?

data2 <- data1[good,]

With

data1[good]

you're selecting columns in a wrong way (using a logical vector of complete rows).

Consider that parameter pollutant is not used; is it a column name that you want to extract? if so it should be something like

data2 <- data1[good, pollutant]

Furthermore consider that you have to rbind the data.frames inside the for loop, otherwise you get only the last data.frame (its completed.cases)

And last but not least, i'd prefer generating filenames eg with

id <- 1:322
paste0( directory, "/", gsub(" ", "0", sprintf("%3d",id)), ".csv")

A little modified chunk of ?sprintf

The string fmt (in our case "%3d") contains normal characters, which are passed through to the output string, and also conversion specifications which operate on the arguments provided through .... The allowed conversion specifications start with a % and end with one of the letters in the set aAdifeEgGosxX%. These letters denote the following types:

• d: integer

Eg a more general example

    sprintf("I am %10d years old", 25)
[1] "I am         25 years old"
          ^^^^^^^^^^
          |        |
          1       10

Another way is to create functions in global scope. This was necessary for me since it wasn't possible in Angular 1.5 to reach a component's scope.

Example:

angular.module("app", []).component("component", {_x000D_
  controller: ["$window", function($window) {_x000D_
    var self = this;_x000D_
    _x000D_
    self.logg = function() {_x000D_
      console.log("logging!");_x000D_
    };_x000D_
    _x000D_
    $window.angularControllerLogg = self.logg;_x000D_
  }_x000D_
});_x000D_
               _x000D_
window.angularControllerLogg();

TL;DR:

? express.basicAuth is gone
? basic-auth-connect is deprecated
? basic-auth doesn't have any logic
? http-auth is an overkill
? express-basic-auth is what you want

More info:

Since you're using Express then you can use the express-basic-auth middleware.

See the docs:

• https://www.npmjs.com/package/express-basic-auth

Example:

const app = require('express')();
const basicAuth = require('express-basic-auth');
 
app.use(basicAuth({
    users: { admin: 'supersecret123' },
    challenge: true // <--- needed to actually show the login dialog!
}));

This is what I came up with:

  $(document).ready(function(){_x000D_
  _x000D_
  $(".fc-event").each(function(){_x000D_
  _x000D_
   console.log(this.attributes['data'].nodeValue) _x000D_
  });_x000D_
    _x000D_
    });

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>_x000D_
<div id='external-events'>_x000D_
   <h4>Booking</h4>_x000D_
   <div class='fc-event' data='00:30:00' >30 Mins</div>_x000D_
   <div class='fc-event' data='00:45:00' >45 Mins</div>_x000D_
</div>

It is important to define an id in the model

.DataSource(dataSource => dataSource
        .Ajax()
        .PageSize(20)
        .Model(model => model.Id(p => p.id))
    )

Its undefined because, console.log(response) runs before doCall(urlToCall); is finished. You have to pass in a callback function aswell, that runs when your request is done.

First, your function. Pass it a callback:

function doCall(urlToCall, callback) {
    urllib.request(urlToCall, { wd: 'nodejs' }, function (err, data, response) {                              
        var statusCode = response.statusCode;
        finalData = getResponseJson(statusCode, data.toString());
        return callback(finalData);
    });
}

Now:

var urlToCall = "http://myUrlToCall";
doCall(urlToCall, function(response){
    // Here you have access to your variable
    console.log(response);
})

@Rodrigo, posted a good resource in the comments. Read about callbacks in node and how they work. Remember, it is asynchronous code.

You're declaring a virtual function and not defining it:

virtual void calculateCredits();

Either define it or declare it as:

virtual void calculateCredits() = 0;

Or simply:

virtual void calculateCredits() { };

Read more about vftable: http://en.wikipedia.org/wiki/Virtual_method_table

The issue because of not loading jquery ui library.

https://code.jquery.com/ui/1.11.4/jquery-ui.js - CDN source file

Call above path in your file.

PROBLEM SOLVED !!!!!!!

Turns out the storage function DID NOT run even once. because i had to include app.use(upload) as upload = multer({storage}).single('file');

 let storage = multer.diskStorage({
        destination: function (req, file, cb) {
            cb(null, './storage')
          },
          filename: function (req, file, cb) {
            console.log(file) // this didn't print anything out so i assumed it was never excuted
            cb(null, file.fieldname + '-' + Date.now())
          }
    });

    const upload = multer({storage}).single('file');

Preflight is a web security feature implemented by the browser. For Chrome you can disable all web security by adding the --disable-web-security flag.

For example: "C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-web-security --user-data-dir="C:\newChromeSettingsWithoutSecurity" . You can first create a new shortcut of chrome, go to its properties and change the target as above. This should help!

I faced the same error, but only with files cloned from git that were assigned to a proprietary plugin. I realized that even after cloning the files from git, I needed to create a new project or import a project in eclipse and this resolved the error.

Use a double-negative:

/[^\S\r\n]/

That is, not-not-whitespace (the capital S complements) or not-carriage-return or not-newline. Distributing the outer not (i.e., the complementing ^ in the character class) with De Morgan's law, this is equivalent to “whitespace but not carriage return or newline.” Including both \r and \n in the pattern correctly handles all of Unix (LF), classic Mac OS (CR), and DOS-ish (CR LF) newline conventions.

No need to take my word for it:

#! /usr/bin/env perl

use strict;
use warnings;

use 5.005;  # for qr//

my $ws_not_crlf = qr/[^\S\r\n]/;

for (' ', '\f', '\t', '\r', '\n') {
  my $qq = qq["$_"];
  printf "%-4s => %s\n", $qq,
    (eval $qq) =~ $ws_not_crlf ? "match" : "no match";
}

Output:

" "  => match
"\f" => match
"\t" => match
"\r" => no match
"\n" => no match

Note the exclusion of vertical tab, but this is addressed in v5.18.

Before objecting too harshly, the Perl documentation uses the same technique. A footnote in the “Whitespace” section of perlrecharclass reads

Prior to Perl v5.18, \s did not match the vertical tab. [^\S\cK] (obscurely) matches what \s traditionally did.

The same section of perlrecharclass also suggests other approaches that won’t offend language teachers’ opposition to double-negatives.

Outside locale and Unicode rules or when the /a switch is in effect, “\s matches [\t\n\f\r ] and, starting in Perl v5.18, the vertical tab, \cK.” Discard \r and \n to leave /[\t\f\cK ]/ for matching whitespace but not newline.

If your text is Unicode, use code similar to the sub below to construct a pattern from the table in the aforementioned documentation section.

sub ws_not_nl {
  local($_) = <<'EOTable';
0x0009        CHARACTER TABULATION   h s
0x000a              LINE FEED (LF)    vs
0x000b             LINE TABULATION    vs  [1]
0x000c              FORM FEED (FF)    vs
0x000d        CARRIAGE RETURN (CR)    vs
0x0020                       SPACE   h s
0x0085             NEXT LINE (NEL)    vs  [2]
0x00a0              NO-BREAK SPACE   h s  [2]
0x1680            OGHAM SPACE MARK   h s
0x2000                     EN QUAD   h s
0x2001                     EM QUAD   h s
0x2002                    EN SPACE   h s
0x2003                    EM SPACE   h s
0x2004          THREE-PER-EM SPACE   h s
0x2005           FOUR-PER-EM SPACE   h s
0x2006            SIX-PER-EM SPACE   h s
0x2007                FIGURE SPACE   h s
0x2008           PUNCTUATION SPACE   h s
0x2009                  THIN SPACE   h s
0x200a                  HAIR SPACE   h s
0x2028              LINE SEPARATOR    vs
0x2029         PARAGRAPH SEPARATOR    vs
0x202f       NARROW NO-BREAK SPACE   h s
0x205f   MEDIUM MATHEMATICAL SPACE   h s
0x3000           IDEOGRAPHIC SPACE   h s
EOTable

  my $class;
  while (/^0x([0-9a-f]{4})\s+([A-Z\s]+)/mg) {
    my($hex,$name) = ($1,$2);
    next if $name =~ /\b(?:CR|NL|NEL|SEPARATOR)\b/;
    $class .= "\\N{U+$hex}";
  }

  qr/[$class]/u;
}

Other Applications

The double-negative trick is also handy for matching alphabetic characters too. Remember that \w matches “word characters,” alphabetic characters and digits and underscore. We ugly-Americans sometimes want to write it as, say,

if (/[A-Za-z]+/) { ... }

but a double-negative character-class can respect the locale:

if (/[^\W\d_]+/) { ... }

Expressing “a word character but not digit or underscore” this way is a bit opaque. A POSIX character-class communicates the intent more directly

if (/[[:alpha:]]+/) { ... }

or with a Unicode property as szbalint suggested

if (/\p{Letter}+/) { ... }

only css div you can center content

div{
       display:table;
       margin:0 auto;
    }

http://jsfiddle.net/4q2r69te/1/

-- html file --

<select name='city[]'> 
                <option name='Kabul' value="Kabul" > Kabul </option>
                <option name='Herat' value='Herat' selected="selected">             Herat </option>
                <option name='Mazar' value='Mazar'>Mazar </option>
</select>

-- php file --

$city = (isset($_POST['city']) ? $_POST['city']: null);
print("city is: ".$city[0]);

this code if u make a register form with textBox and use insert and ur textBox is empty and u click on submit button .

CREATE UNIQUE NONCLUSTERED INDEX [IX_tableName_Column]
ON [dbo].[tableName]([columnName] ASC) WHERE [columnName] !=`''`;

I have created another alternative to the one posted by Vishal Joshi where the requirement to change the build action to Content is removed and also implemented basic support for ClickOnce deployment. I say basic, because I didn't test it thoroughly but it should work in the typical ClickOnce deployment scenario.

The solution consists of a single MSBuild project that once imported to an existent windows application project (*.csproj) extends the build process to contemplate app.config transformation.

You can read a more detailed explanation at Visual Studio App.config XML Transformation and the MSBuild project file can be downloaded from GitHub.

declare @date datetime;
set @date = getdate(); -- or some date
select dateadd(month,1+datediff(month,0,@date),-1);

if u want to write a JSON object to the response then change the header content type to application/json

response.writeHead(200, {"Content-Type": "application/json"});
var d = new Date(parseURL.query.iso);
var postData = {
    "hour" : d.getHours(),
    "minute" : d.getMinutes(),
    "second" : d.getSeconds()
}
response.write(postData)
response.end();

I can't guarantee it's the simplest, but I like MarkerWithLabel. As shown in the basic example, CSS styles define the label's appearance and options in the JavaScript define the content and placement.

 .labels {
   color: red;
   background-color: white;
   font-family: "Lucida Grande", "Arial", sans-serif;
   font-size: 10px;
   font-weight: bold;
   text-align: center;
   width: 60px;     
   border: 2px solid black;
   white-space: nowrap;
 }

JavaScript:

 var marker = new MarkerWithLabel({
   position: homeLatLng,
   draggable: true,
   map: map,
   labelContent: "$425K",
   labelAnchor: new google.maps.Point(22, 0),
   labelClass: "labels", // the CSS class for the label
   labelStyle: {opacity: 0.75}
 });

The only part that may be confusing is the labelAnchor. By default, the label's top left corner will line up to the marker pushpin's endpoint. Setting the labelAnchor's x-value to half the width defined in the CSS width property will center the label. You can make the label float above the marker pushpin with an anchor point like new google.maps.Point(22, 50).

In case access to the links above are blocked, I copied and pasted the packed source of MarkerWithLabel into this JSFiddle demo. I hope JSFiddle is allowed in China :|

This works for me

foreach ($photos_array as $photo) {

    //collect all inserted record IDs
    $photo_id_array[$photo->id] = ['type' => 'Offence'];  

}

//Insert into offence_photo table
$offence->photos()->sync($photo_id_array, false);//dont delete old entries = false

What about getting the version from the package meta infos:

String version = Runtime.class.getPackage().getImplementationVersion();

Prints out something like:

1.7.0_13

Adding to @Hendrik Eichler Answer, the n vh uses n% of the viewport's initial containing block.

.element{
    height: 50vh; /* Would mean 50% of Viewport height */
    width:  75vw; /* Would mean 75% of Viewport width*/
}

Also, the viewport height is for devices of any resolution, the view port height, width is one of the best ways (similar to css design using % values but basing it on the device's view port height and width)

vh
Equal to 1% of the height of the viewport's initial containing block.

vw
Equal to 1% of the width of the viewport's initial containing block.

vi
Equal to 1% of the size of the initial containing block, in the direction of the root element’s inline axis.

vb
Equal to 1% of the size of the initial containing block, in the direction of the root element’s block axis.

vmin
Equal to the smaller of vw and vh.

vmax
Equal to the larger of vw and vh.

Ref: https://developer.mozilla.org/en-US/docs/Web/CSS/length#Viewport-percentage_lengths

Use IndexOf is easier and high performance.

int index = Value1.IndexOf("abc");
bool found = index >= 0 && index < x;

Those are users. Check your /etc/passwd.

cd ~username takes you to that user's home directory.

try this:

Sub test()

With Application.WorksheetFunction
    Cells(.CountA(Columns("A:A")) + 1, 1).Select
End With

End Sub

Hope this works for you.

string InstallPath = (string)Registry.GetValue(@"HKEY_LOCAL_MACHINE\SOFTWARE\MyApplication\AppPath", "Installed", null);    
if (InstallPath != null)
{
    // Do stuff
}

That code should get your value. You'll need to be

using Microsoft.Win32;

for that to work though.

.add() also works.

var daySelect = document.getElementById("myDaySelect");
var myOption = document.createElement("option");
myOption.text = "test";
myOption.value = "value";
daySelect.add(option);

W3 School - try

I'm not sure what you just did there, but from what I can tell this is what you're asking for:

bookingfacilities.php

<form action="successfulbooking.php" method="post">
    <input type="hidden" name="date" value="<?php echo $date; ?>">  
    <input type="submit" value="Submit Form">
</form>

successfulbooking.php

<?php
    $date = $_POST['date'];
    // add code here
?>

Not sure what you want to do with that third page(booking_now.php) too.

According to the packages list in Ubuntu Wily Xenial Bionic there is a package named openjfx. This should be a candidate for what you're looking for:

JavaFX/OpenJFX 8 - Rich client application platform for Java

You can install it via:

sudo apt-get install openjfx

It provides the following JAR files to the OpenJDK installation on Ubuntu systems:

/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/ext/jfxrt.jar
/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/jfxswt.jar
/usr/lib/jvm/java-8-openjdk-amd64/lib/ant-javafx.jar
/usr/lib/jvm/java-8-openjdk-amd64/lib/javafx-mx.jar

If you want to have sources available, for example for debugging, you can additionally install:

sudo apt-get install openjfx-source

In bootstrap you can use .text-centerto align center. also add .row and .col-md-* to your code.

align= is deprecated,

Added .col-xs-* for demo

<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css" rel="stylesheet" />
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />
<div class="footer">
  <div class="container">
    <div class="row">
      <div class="col-xs-4">
        <p>Hello there</p>
      </div>
      <div class="col-xs-4 text-center">
        <a href="#" class="btn btn-warning" onclick="changeLook()">Re</a>
        <a href="#" class="btn btn-warning" onclick="changeBack()">Rs</a>
      </div>
      <div class="col-xs-4 text-right">
        <a href="#"><i class="fa fa-facebook-square fa-2x"></i></a>
        <a href="#"><i class="fa fa-twitter fa-2x"></i></a>
        <a href="#"><i class="fa fa-google-plus fa-2x"></i></a>
      </div>
    </div>
  </div>
</div>

UPDATE(OCT 2017)

For those who are reading this and want to use the new version of bootstrap (beta version), you can do the above in a simpler way, using Boostrap Flexbox utilities classes

<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css" rel="stylesheet" />
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" rel="stylesheet" />
<div class="container footer">
  <div class="d-flex justify-content-between">
    <div class="p-1">
      <p>Hello there</p>
    </div>
    <div class="p-1">
      <a href="#" class="btn btn-warning" onclick="changeLook()">Re</a>
      <a href="#" class="btn btn-warning" onclick="changeBack()">Rs</a>
    </div>
    <div class="p-1">
      <a href="#"><i class="fa fa-facebook-square fa-2x"></i></a>
      <a href="#"><i class="fa fa-twitter fa-2x"></i></a>
      <a href="#"><i class="fa fa-google-plus fa-2x"></i></a>
    </div>
  </div>
</div>

As of HTML5 it is OK to wrap <a> elements around a <div> (or any other block elements):

The a element may be wrapped around entire paragraphs, lists, tables, and so forth, even entire sections, so long as there is no interactive content within (e.g. buttons or other links).

Just have to make sure you don't put an <a> within your <a> ( or a <button>).

I know this is a bit old, but i thought i would contribute. Basing myself on the answer by @Sophy, this is what I did to add a .xxs breakpoint. I have not taken care of visible-inline, table.visible, etc classes.

/*==========  Mobile First Method  ==========*/

  .col-xxs-12, .col-xxs-11, .col-xxs-10, .col-xxs-9, .col-xxs-8, .col-xxs-7, .col-xxs-6, .col-xxs-5, .col-xxs-4, .col-xxs-3, .col-xxs-2, .col-xxs-1 {
    position: relative;
    min-height: 1px;
    padding-left: 15px;
    padding-right: 15px;
    float: left;
  }

.visible-xxs {
  display:none !important;
}

/* Custom, iPhone Retina */
@media only screen and (min-width : 320px) and (max-width:479px) {

  .visible-xxs {
    display: block !important;
  }
  .visible-xs {
    display:none !important;
  }

  .hidden-xs {
    display:block !important;
  }

  .hidden-xxs {
    display:none !important;
  }

  .col-xxs-12 {
    width: 100%;
  }
  .col-xxs-11 {
    width: 91.66666667%;
  }
  .col-xxs-10 {
    width: 83.33333333%;
  }
  .col-xxs-9 {
    width: 75%;
  }
  .col-xxs-8 {
    width: 66.66666667%;
  }
  .col-xxs-7 {
    width: 58.33333333%;
  }
  .col-xxs-6 {
    width: 50%;
  }
  .col-xxs-5 {
    width: 41.66666667%;
  }
  .col-xxs-4 {
    width: 33.33333333%;
  }
  .col-xxs-3 {
    width: 25%;
  }
  .col-xxs-2 {
    width: 16.66666667%;
  }
  .col-xxs-1 {
    width: 8.33333333%;
  }
  .col-xxs-pull-12 {
    right: 100%;
  }
  .col-xxs-pull-11 {
    right: 91.66666667%;
  }
  .col-xxs-pull-10 {
    right: 83.33333333%;
  }
  .col-xxs-pull-9 {
    right: 75%;
  }
  .col-xxs-pull-8 {
    right: 66.66666667%;
  }
  .col-xxs-pull-7 {
    right: 58.33333333%;
  }
  .col-xxs-pull-6 {
    right: 50%;
  }
  .col-xxs-pull-5 {
    right: 41.66666667%;
  }
  .col-xxs-pull-4 {
    right: 33.33333333%;
  }
  .col-xxs-pull-3 {
    right: 25%;
  }
  .col-xxs-pull-2 {
    right: 16.66666667%;
  }
  .col-xxs-pull-1 {
    right: 8.33333333%;
  }
  .col-xxs-pull-0 {
    right: auto;
  }
  .col-xxs-push-12 {
    left: 100%;
  }
  .col-xxs-push-11 {
    left: 91.66666667%;
  }
  .col-xxs-push-10 {
    left: 83.33333333%;
  }
  .col-xxs-push-9 {
    left: 75%;
  }
  .col-xxs-push-8 {
    left: 66.66666667%;
  }
  .col-xxs-push-7 {
    left: 58.33333333%;
  }
  .col-xxs-push-6 {
    left: 50%;
  }
  .col-xxs-push-5 {
    left: 41.66666667%;
  }
  .col-xxs-push-4 {
    left: 33.33333333%;
  }
  .col-xxs-push-3 {
    left: 25%;
  }
  .col-xxs-push-2 {
    left: 16.66666667%;
  }
  .col-xxs-push-1 {
    left: 8.33333333%;
  }
  .col-xxs-push-0 {
    left: auto;
  }
  .col-xxs-offset-12 {
    margin-left: 100%;
  }
  .col-xxs-offset-11 {
    margin-left: 91.66666667%;
  }
  .col-xxs-offset-10 {
    margin-left: 83.33333333%;
  }
  .col-xxs-offset-9 {
    margin-left: 75%;
  }
  .col-xxs-offset-8 {
    margin-left: 66.66666667%;
  }
  .col-xxs-offset-7 {
    margin-left: 58.33333333%;
  }
  .col-xxs-offset-6 {
    margin-left: 50%;
  }
  .col-xxs-offset-5 {
    margin-left: 41.66666667%;
  }
  .col-xxs-offset-4 {
    margin-left: 33.33333333%;
  }
  .col-xxs-offset-3 {
    margin-left: 25%;
  }
  .col-xxs-offset-2 {
    margin-left: 16.66666667%;
  }
  .col-xxs-offset-1 {
    margin-left: 8.33333333%;
  }
  .col-xxs-offset-0 {
    margin-left: 0%;
  }

}

/* Extra Small Devices, Phones */
@media only screen and (min-width : 480px) {

  .visible-xs {
    display:block !important;
  }

}

/* Small Devices, Tablets */
@media only screen and (min-width : 768px) {

  .visible-xs {
    display:none !important;
  }

}

/* Medium Devices, Desktops */
@media only screen and (min-width : 992px) {

}

/* Large Devices, Wide Screens */
@media only screen and (min-width : 1200px) {

}

A straighforward way to pull that off (whilst considering your current time zone it taking advantage of the ISO yyyy-mm-dd format) is:

let d = new Date().toISOString().substring(0,19).replace("T"," ") // "2020-02-18 16:41:58"

Usually, this is a pretty all-purpose compatible date format and you can convert it to pure date value if needed:

Date.parse(d); // 1582044297000

window.scrollTo(0,1);

this will help you but this javascript is may not work in all browsers

I think your professor is trying to stop a bad habit before it even starts.

Global variables have their place and like many people said knowing where and when to use them can be complicated. So I think rather than get into the nitty gritty of the why, how, when, and where of global variables your professor decided to just ban. Who knows, he might un-ban them in the future.

Gmap writes inline style position to relative to the div. Overwrite that with :

google.maps.event.addListener(map, 'tilesloaded', function(){
    document.getElementById('maps').style.position = 'static';
    document.getElementById('maps').style.background = 'none';
});

Hope it helps.

Use accept attribute with the MIME_type as values

<input type="file" accept="image/gif, image/jpeg" />

You do not have any elements in the list so can't access the first element.

DateTime is a non-nullable value type

DateTime? newdate = null;

You can use a Nullable<DateTime>

c# Nullable Datetime

To get an actual working example going that returns what one would expect:

var startdate = "20.03.2014";
var new_date = moment(startdate, "DD.MM.YYYY");
var thing = new_date.add(5, 'days').format('DD/MM/YYYY');
window.console.log(thing)

Main problem with "This application is modifying the autolayout engine from a background thread" is that it seem to be logged a long time after the actual problem occurs, this can make it very hard to troubleshoot.

I managed to solve the issue by creating three symbolic breakpoints.

Debug > Breakpoints > Create Symbolic Breakpoint...

Breakpoint 1:

• Symbol: -[UIView setNeedsLayout]

• Condition: !(BOOL)[NSThread isMainThread]

Breakpoint 2:

• Symbol: -[UIView layoutIfNeeded]

• Condition: !(BOOL)[NSThread isMainThread]

Breakpoint 3:

• Symbol: -[UIView updateConstraintsIfNeeded]

• Condition: !(BOOL)[NSThread isMainThread]

With these breakpoints, you can easily get a break on the actual line where you incorrectly call UI methods on non-main thread.

This occurs when you specify the different name for repository table name and database table name. Please check your table name with database and repository.

Nothing easier than that man. Try this one:

<?xml version="1.0" encoding="iso-8859-1"?>
<html>
<head>
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
    <link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.1/themes/base/jquery-ui.css" type="text/css" />
    <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.1/jquery-ui.min.js"></script>
    <style>
        .loading { background: url(/img/spinner.gif) center no-repeat !important}
    </style>
</head>
<body>
    <a class="ajax" href="http://www.google.com">
      Open as dialog
    </a>

    <script type="text/javascript">
    $(function (){
        $('a.ajax').click(function() {
            var url = this.href;
            // show a spinner or something via css
            var dialog = $('<div style="display:none" class="loading"></div>').appendTo('body');
            // open the dialog
            dialog.dialog({
                // add a close listener to prevent adding multiple divs to the document
                close: function(event, ui) {
                    // remove div with all data and events
                    dialog.remove();
                },
                modal: true
            });
            // load remote content
            dialog.load(
                url, 
                {}, // omit this param object to issue a GET request instead a POST request, otherwise you may provide post parameters within the object
                function (responseText, textStatus, XMLHttpRequest) {
                    // remove the loading class
                    dialog.removeClass('loading');
                }
            );
            //prevent the browser to follow the link
            return false;
        });
    });
    </script>
</body>
</html>

Note that you can't load remote from local, so you'll have to upload this to a server or whatever. Also note that you can't load from foreign domains, so you should replace href of the link to a document hosted on the same domain (and here's the workaround).

Cheers

Running git pull performs the following tasks, in order:

1. git fetch
2. git merge

The merge step combines branches that have been setup to be merged in your config. You want to undo the merge step, but probably not the fetch (doesn't make a lot of sense and shouldn't be necessary).

To undo the merge, use git reset --hard to reset the local repository to a previous state; use git-reflog to find the SHA-1 of the previous state and then reset to it.

Warning

The commands listed in this section remove all uncommitted changes, potentially leading to a loss of work:

git reset --hard

Alternatively, reset to a particular point in time, such as:

git reset --hard master@{"10 minutes ago"}

This is a workaround (for me: I don't use awk very often):

Display the first row of the file containing the data, replace all pipes with newlines and then count the lines:

$ head -1 stores.dat | tr '|' '\n' | wc -l

If it is Rails 5, because of new hash notation: params.permit(:name, groundtruth: [:type, coordinates:[]]) will work fine.

Ok, thanks to Charles Goodwin for the concept. Here is the answer:

import java.util.*;
public class Test {

  public static void main(String[] args) {
     List<String> argsList  = new ArrayList<String>();  
     List<String> optsList  = new ArrayList<String>();
     List<String> doubleOptsList  = new ArrayList<String>();
     for (int i=0; i < args.length; i++) {
         switch (args[i].charAt(0)) {
         case '-':
             if (args[i].charAt(1) == '-') {
                 int len = 0;
                 String argstring = args[i].toString();
                 len = argstring.length();
                 System.out.println("Found double dash with command " +
                     argstring.substring(2, len) );
                 doubleOptsList.add(argstring.substring(2, len));           
             } else {
                 System.out.println("Found dash with command " + 
                   args[i].charAt(1) + " and value " + args[i+1] );   
                 i= i+1;
                 optsList.add(args[i]);      
             }           
         break;         
         default:            
         System.out.println("Add a default arg." );
         argsList.add(args[i]);
         break;         
         }     
     } 
  } 

}

You are most likely looking for the IIS_IUSRS account.

I find the existing explanations too gobbledygook. Here's my explanation in plain English:

STA: If a thread creates a COM object that's set to STA (when calling CoCreateXXX you can pass a flag that sets the COM object to STA mode), then only this thread can access this COM object (that's what STA means - Single Threaded Apartment), other thread trying to call methods on this COM object is under the hood silently turned into delivering messages to the thread that creates(owns) the COM object. This is very much like the fact that only the thread that created a UI control can access it directly. And this mechanism is meant to prevent complicated lock/unlock operations.

MTA: If a thread creates a COM object that's set to MTA, then pretty much every thread can directly call methods on it.

That's pretty much the gist of it. Although technically there're some details I didn't mention, such as in the 'STA' paragraph, the creator thread must itself be STA. But this is pretty much all you have to know to understand STA/MTA/NA.

Additional option:

In my case with Xamarin Forms, on top of the 'InitializeComponent' does not exist in the current context error in my App.xaml file, I also noticed in the output that the .csproj file was failing to build. Weird.

Nothing in the file itself stood out to me except these two ItemGroup entries:

  <ItemGroup>
    <EmbeddedResource Remove="App.xaml" />
  </ItemGroup>

  <ItemGroup>
    <ApplicationDefinition Include="App.xaml" />
  </ItemGroup>

I removed both from the .csproj file, performed a clean and rebuild and the error finally disappeared. So painful resolving the issue, maybe this will help someone else avoid a bit of stress down the road.

Here is an SSCCE,

package experiment;

import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

public class KeyListenerTester extends JFrame implements KeyListener {

    JLabel label;

    public KeyListenerTester(String s) {
        super(s);
        JPanel p = new JPanel();
        label = new JLabel("Key Listener!");
        p.add(label);
        add(p);
        addKeyListener(this);
        setSize(200, 100);
        setVisible(true);

    }

    @Override
    public void keyTyped(KeyEvent e) {

        if (e.getKeyCode() == KeyEvent.VK_RIGHT) {
            System.out.println("Right key typed");
        }
        if (e.getKeyCode() == KeyEvent.VK_LEFT) {
            System.out.println("Left key typed");
        }

    }

    @Override
    public void keyPressed(KeyEvent e) {

        if (e.getKeyCode() == KeyEvent.VK_RIGHT) {
            System.out.println("Right key pressed");
        }
        if (e.getKeyCode() == KeyEvent.VK_LEFT) {
            System.out.println("Left key pressed");
        }

    }

    @Override
    public void keyReleased(KeyEvent e) {
        if (e.getKeyCode() == KeyEvent.VK_RIGHT) {
            System.out.println("Right key Released");
        }
        if (e.getKeyCode() == KeyEvent.VK_LEFT) {
            System.out.println("Left key Released");
        }
    }

    public static void main(String[] args) {
        new KeyListenerTester("Key Listener Tester");
    }
}

Additionally read upon these links : How to Write a Key Listener and How to Use Key Bindings

http://www.tohtml.com/ created syntax highlighted HTML code for lots of languages. It might be what you're looking for.

Have you noticed that you don't get the error if you run

python ./script.py

instead of

python script.py

This is because sys.argv[0] will read ./script.py in the former case, which gives os.path.dirname something to work with. When you don't specify a path, sys.argv[0] reads simply script.py, and os.path.dirname cannot determine a path.

I use .bat file with this commad to do that.

for /f %%F in ('dir /b /ad /s ^| findstr /iles "Bin"') do RMDIR /s /q "%%F"
for /f %%F in ('dir /b /ad /s ^| findstr /iles "Obj"') do RMDIR /s /q "%%F"

One way to do it must be if (typeof myObj.prop1 != "undefined") {...}

why not just skip .get altogether and do something like this?:

for x in range(len(dictionary["C1"]))
    dictionary["C1"][x] += 10

Another use for bootstrap.yml is to load configuration from kubernetes configmap and secret resources. The application must import the spring-cloud-starter-kubernetes dependency.

As with the Spring Cloud Config, this has to take place during the bootstrap phrase.

From the docs :

spring:
  application:
    name: cloud-k8s-app
  cloud:
    kubernetes:
      config:
        name: default-name
        namespace: default-namespace
        sources:
         # Spring Cloud Kubernetes looks up a ConfigMap named c1 in namespace default-namespace
         - name: c1

So properties stored in the configmap resource with meta.name default-name can be referenced just the same as properties in application.yml

And the same process applies to secrets :

spring:
  application:
    name: cloud-k8s-app
  cloud:
    kubernetes:
      secrets:
        name: default-name
        namespace: default-namespace
        sources:
         # Spring Cloud Kubernetes looks up a Secret named s1 in namespace default-namespace
         - name: s1

Update

As mentioned in several other answers here, this 'accepted' answer is outdated and is no longer correct. VS Code now has the concept of a 'workspace' which lets you add several 'root' folders to VS Code in the same window.

For instance, when working on a project in one folder that utilizes shared code held in a different folder, you can now open both the project folder and the shared folder in the same window.

To do this you use the Add folder to Workspace... command. VS Code then saves this configuration in a new file with a .code-workspace extension. If you double-click that file, VS Code will re-open with both folders present.

Original Accepted Answer (Outdated)

As described in The Basics of Visual Studio Code article:

"VSCode is file and folder based - you can get started immediately by opening a file or folder in VSCode."

This means the concept of solution and project files, like the .sln and .csproj, have no real function in VSCode other than that it uses these only to target and identify which language to support for Intellisense and such.

Simply put, the folder you open is the root you work with. But of course there is nothing from stopping you to open multiple windows.

As for the request features options, navigate to Help > Request Features which will redirect you to the UserVoice page of VSCode.

Probably the easiest way:

<input type='text' id='abc' value="hel'lo">

Use the following:

echo $form->field($model, 'hidden1')->hiddenInput(['value'=> $value])->label(false);

I got the same issue, and I changed to IP and it working well

Go to System References --> Network --> Advanced --> Open TCP/IP tabs --> copy the IPv4 Address.

change that IP instead localhost

Hope this can help

The problem occurred because of wrong table type.MyISAM is the only type of table that Mysql supports for Full-text indexes.

To correct this error run following sql.

 CREATE TABLE gamemech_chat (
  id bigint(20) unsigned NOT NULL auto_increment,
  from_userid varchar(50) NOT NULL default '0',
  to_userid varchar(50) NOT NULL default '0',
  text text NOT NULL,
  systemtext text NOT NULL,
  timestamp datetime NOT NULL default '0000-00-00 00:00:00',
  chatroom bigint(20) NOT NULL default '0',
  PRIMARY KEY  (id),
  KEY from_userid (from_userid),
  FULLTEXT KEY from_userid_2 (from_userid),
  KEY chatroom (chatroom),
  KEY timestamp (timestamp)
) ENGINE=MyISAM;

Try this:

1. Unzip XLSX file
2. Read XML files
3. Compose and use data

Example code:

    public Workbook getTemplateData(String xlsxFile) {
    Workbook workbook = new Workbook();
    parseSharedStrings(xlsxFile);
    parseWorkesheet(xlsxFile, workbook);
    parseComments(xlsxFile, workbook);
    for (Worksheet worksheet : workbook.sheets) {
        worksheet.dimension = manager.getDimension(worksheet);
    }

    return workbook;
}

private void parseComments(String tmpFile, Workbook workbook) {
    try {
        FileInputStream fin = new FileInputStream(tmpFile);
        final ZipInputStream zin = new ZipInputStream(fin);
        InputStream in = getInputStream(zin);
        while (true) {
            ZipEntry entry = zin.getNextEntry();
            if (entry == null)
                break;

            String name = entry.getName();
            if (name.endsWith(".xml")) { //$NON-NLS-1$
                if (name.contains(COMMENTS)) {
                    parseComments(in, workbook);
                }
            }
            zin.closeEntry();
        }
        in.close();
        zin.close();
        fin.close();
    } catch (FileNotFoundException e) {
        System.out.println(e);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

private void parseComments(InputStream in, Workbook workbook) {
    try {
        DefaultHandler handler = getCommentHandler(workbook);
        SAXParser saxParser = getSAXParser();
        saxParser.parse(in, handler);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

private DefaultHandler getCommentHandler(Workbook workbook) {
    final Worksheet ws = workbook.sheets.get(0);
    return new DefaultHandler() {
        String lastTag = "";
        private Cell ccell;

        @Override
        public void startElement(String uri, String localName,
                String qName, Attributes attributes) throws SAXException {
            lastTag = qName;
            if (lastTag.equals("comment")) {
                String cellName = attributes.getValue("ref");
                int r = manager.getRowIndex(cellName);
                int c = manager.getColumnIndex(cellName);
                Row row = ws.rows.get(r);
                if (row == null) {
                    row = new Row();
                    row.index = r;
                    ws.rows.put(r, row);
                }
                ccell = row.cells.get(c);
                if (ccell == null) {
                    ccell = new Cell();
                    ccell.cellName = cellName;
                    row.cells.put(c, ccell);
                }
            }
        }

        @Override
        public void characters(char[] ch, int start, int length)
                throws SAXException {
            String val = "";
            if (ccell != null && lastTag.equals("t")) {
                for (int i = start; i < start + length; i++) {
                    val += ch[i];
                }
                if (ccell.comment == null)
                    ccell.comment = val;
                else {
                    ccell.comment += val;
                }
            }
        }
    };
}

private void parseSharedStrings(String tmpFile) {
    try {
        FileInputStream fin = new FileInputStream(tmpFile);
        final ZipInputStream zin = new ZipInputStream(fin);
        InputStream in = getInputStream(zin);
        while (true) {
            ZipEntry entry = zin.getNextEntry();
            if (entry == null)
                break;
            String name = entry.getName();
            if (name.endsWith(".xml")) { //$NON-NLS-1$
                if (name.startsWith(SHARED_STRINGS)) {
                    parseStrings(in);
                }
            }
            zin.closeEntry();
        }
        in.close();
        zin.close();
        fin.close();
    } catch (FileNotFoundException e) {
        System.out.println(e);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

public void parseWorkesheet(String tmpFile, Workbook workbook) {
    try {
        FileInputStream fin = new FileInputStream(tmpFile);
        final ZipInputStream zin = new ZipInputStream(fin);
        InputStream in = getInputStream(zin);
        while (true) {
            ZipEntry entry = zin.getNextEntry();
            if (entry == null)
                break;

            String name = entry.getName();
            if (name.endsWith(".xml")) { //$NON-NLS-1$
                if (name.contains("worksheets")) {
                    Worksheet worksheet = new Worksheet();
                    worksheet.name = name;
                    parseWorksheet(in, worksheet);
                    workbook.sheets.add(worksheet);
                }
            }
            zin.closeEntry();
        }
        in.close();
        zin.close();
        fin.close();
    } catch (FileNotFoundException e) {
        System.out.println(e);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

public void parseWorksheet(InputStream in, Worksheet worksheet)
        throws IOException {
    // read sheet1 sharedStrings
    // styles, strings, formulas ...
    try {
        DefaultHandler handler = getDefaultHandler(worksheet);
        SAXParser saxParser = getSAXParser();
        saxParser.parse(in, handler);
    } catch (SAXException e) {
        e.printStackTrace();
    } catch (ParserConfigurationException e) {
        e.printStackTrace();
    }
}

where Workbook class:

public class Workbook {
Integer id = null;
public List<Worksheet> sheets = new ArrayList<Worksheet>();}

and Worksheet class:

public class Worksheet {
public Integer id = null;
public String name = null;
public String dimension = null;
public Map<Integer, Row> rows = new TreeMap<Integer, Row>();
public Map<Integer, Column> columns = new TreeMap<Integer, Column>();
public List<Span> spans = new ArrayList<Span>();}

and Row class:

public class Row {
public Integer id = null;
public Integer index = null;
public Row tmpRow = null;
public Style style = null;
public Double height = null;
public Map<Integer,Cell> cells = new TreeMap<Integer, Cell>();
public String spans = null;
public Integer customHeight = null;}

and Cell class:

public class Cell {
public Integer id = null;
public Integer rowIndex = null;
public Integer colIndex = null;
public String cellName = null;
public String text = null;
public String formula = null;
public String comment = null;
public Style style = null;
public Object value = null;
public Cell tmpCell = null;}

and Column class:

public class Column {
    public Integer index = null;
    public Style style = null;
    public String width = null;
    public Column tmpColumn = null;
}

and Span class:

public class Span {
    Integer id = null;
    String topLeft = null;
    String bottomRight = null;
}

It means assign the key to $user and the variable to $pass

When you assign an array, you do it like this

$array = array("key" => "value");

It uses the same symbol for processing arrays in foreach statements. The '=>' links the key and the value.

According to the PHP Manual, the '=>' created key/value pairs.

Also, Equal or Greater than is the opposite way: '>='. In PHP the greater or less than sign always goes first: '>=', '<='.

And just as a side note, excluding the second value does not work like you think it would. Instead of only giving you the key, It actually only gives you a value:

$array = array("test" => "foo");

foreach($array as $key => $value)
{
    echo $key . " : " . $value; // Echoes "test : foo"
}

foreach($array as $value)
{
    echo $value; // Echoes "foo"
}

If you're using getline() after cin >> something, you need to flush the newline character out of the buffer in between. You can do it by using cin.ignore().

It would be something like this:

string messageVar;
cout << "Type your message: ";
cin.ignore(); 
getline(cin, messageVar);

This happens because the >> operator leaves a newline \n character in the input buffer. This may become a problem when you do unformatted input, like getline(), which reads input until a newline character is found. This happening, it will stop reading immediately, because of that \n that was left hanging there in your previous operation.

Other examples here are difficult to remember. At its simplest:

date -r 1305712800

You can access the values in a vector just as you access any other array.

for (int i = 0; i < v.size(); i++)
{         
  v[i] -= 1;         
} 

I wrote this to remove all objects apart from functions from the current environment (Programming language used is R with IDE R-Studio):

    remove_list=c()                             # create a vector

      for(i in 1:NROW(ls())){                   # repeat over all objects in environment
        if(class(get(ls()[i]))!="function"){    # if object is *not* a function
         remove_list=c(remove_list,ls()[i])     # ..add to vector remove_list
         }    
      }

    rm(list=remove_list)                        # remove all objects named in remove_list

Notes-

The argument "list" in rm(list=) must be a character vector.

The name of an object in position i of the current environment is returned from ls()[i] and the object itself from get(ls()[i]). Therefore the class of an object is returned from class(get(ls()[i]))

Fun! There are a few things to tease out here:

• $leadID seems to be a php string. Make sure it gets printed in the right place. Also be aware of all the risks involved in passing your own strings around, like cross-site scripting and SQL injection vulnerabilities. There’s really no excuse for having Internet-facing production code not running on a solid framework.
• Strings in Javascript (like in PHP and usually HTML) need to be enclosed in " or ' characters. Since you’re already inside both " and ', you’ll want to escape whichever you choose. \' to escape the PHP quotes, or ' to escape the HTML quotes.
• <a /> elements are commonly used for “hyper”links, and almost always with a href attribute to indicate their destination, like this: <a href="http://www.google.com">Google homepage</a>.
• You’re trying to double up on watching when the user clicks. Why? Because a standard click both activates the link (causing the browser to navigate to whatever URL, even that executes Javascript), and “triggers” the onclick event. Tip: Add a return false; to a Javascript event to suppress default behavior.
• Within Javascript, onclick doesn’t mean anything on its own. That’s because onclick is a property, and not a variable. There has to be a reference to some object, so it knows whose onclick we’re talking about! One such object is window. You could write <a href="javascript:window.onclick = location.reload;">Activate me to reload when anything is clicked</a>.
• Within HTML, onclick can mean something on its own, as long as its part of an HTML tag: <a href="#" onclick="location.reload(); return false;">. I bet you had this in mind.
• Big difference between those two kinds of = assignments. The Javascript = expects something that hasn’t been run yet. You can wrap things in a function block to signal code that should be run later, if you want to specify some arguments now (like I didn’t above with reload): <a href="javascript:window.onclick = function () { window.open( ... ) };"> ....
• Did you know you don’t even need to use Javascript to signal the browser to open a link in a new window? There’s a special target attribute for that: <a href="http://www.google.com" target="_blank">Google homepage</a>.

Hope those are useful.

This regex:

(\d{1,3},\d{3}(,\d{3})*)(\.\d*)?|\d+\.?\d*

Matched every number in the string:

1 1.0 0.1 1.001 1,000 1,000,000 1000.1 1,000.1 1,323,444,000 1,999 1,222,455,666.0 1,244

This works fine for me in all browsers:

(inline style for simplicity...)

<label style="font-size:16px;">
    <input style="height:1em; width:1em;" type="radio">
    <span>Button One</span>
</label>

The size of both the radio button and text will change with the label's font-size.

I had the same issue and for me it had nothing to do with namespace or project naming.

But as several users hinted at it had to do with an old assembly still being referenced.

I recommend to delete all "bin"/binary folders of all projects and to re-build the whole solution. This washed out any potentially outdated assemblies and after that MEF exported all my plugins without issue.

I had been messing with my csproj file earlier. So under project properties (VS 2013) > Web tab > Servers section > [dropdown], I had "IIS Express" selected when I previously had "Local IIS" selected. Once I corrected the settings to what I had before, the breakpoints worked.

If there are up to 10 strings then you should use a list in order to iterate through all values.

{% set list1 = variable1.split(';') %}
{% for list in list1 %}
<p>{{ list }}</p>
{% endfor %}

I solved this problem by adding C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework.NETFramework\v4.0\System.Runtime.Serialization.dll in the reference

AskTom is probably the single most helpful resource on best practices on Oracle DBs. (I usually just type "asktom" as the first word of a google query on a particular topic)

I don't think it's really appropriate to speak of design patterns with relational databases. Relational databases are already the application of a "design pattern" to a problem (the problem being "how to represent, store and work with data while maintaining its integrity", and the design being the relational model). Other approches (generally considered obsolete) are the Navigational and Hierarchical models (and I'm nure many others exist).

Having said that, you might consider "Data Warehousing" as a somewhat separate "pattern" or approach in database design. In particular, you might be interested in reading about the Star schema.

You can use the limit(n) function:

l = [('Alice', 1),('Jim',2),('Sandra',3)]
df = sqlContext.createDataFrame(l, ['name', 'age'])
df.limit(2).withColumn('age2', df.age + 2).toPandas()

Or:

l = [('Alice', 1),('Jim',2),('Sandra',3)]
df = sqlContext.createDataFrame(l, ['name', 'age'])
df.withColumn('age2', df.age + 2).limit(2).toPandas()

Here's an approach that relies purely on java configuration:

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;

@Configuration
public class MvcConfig extends WebMvcConfigurationSupport{

    @Bean
    public RequestMappingHandlerMapping requestMappingHandlerMapping() {
        RequestMappingHandlerMapping handlerMapping = super.requestMappingHandlerMapping();
        handlerMapping.setUseSuffixPatternMatch(false);
        handlerMapping.setUseTrailingSlashMatch(false);
        return handlerMapping;
    }
}

I had the same problem even when I created a fresh project. I was creating the Java project within Eclipse, then mavenize it, then going into java build path properties removing src/ and adding src/main/java and src/test/java. When I run Maven update it used to give nested path error.
Then I finally realized -because I had not seen that entry before- there is a <sourceDirectory>src</sourceDirectory> line in pom file written when I mavenize it. It was resolved after removing it.

You could try changing the button attribute like this:

element.setAttribute( "onClick", "javascript: Boo();" );

Combining much of above here is my real practical example, selecting records based on both meterid & timestamp. I have needed this command for years. Executes really quickly.

mysqldump -uuser -ppassword main_dbo trHourly --where="MeterID =5406 AND TIMESTAMP<'2014-10-13 05:00:00'" --no-create-info --skip-extended-insert | grep  '^INSERT' > 5406.sql

String has a charAt method that returns the character at the specified position. Like arrays and Lists, String is 0-indexed, i.e. the first character is at index 0 and the last character is at index length() - 1.

So, assuming getSymbol() returns a String, to print the first character, you could do:

System.out.println(ld.getSymbol().charAt(0)); // char at index 0

Use -d (full list of file tests)

if (-d "cgi-bin") {
    # directory called cgi-bin exists
}
elsif (-e "cgi-bin") {
    # cgi-bin exists but is not a directory
}
else {
    # nothing called cgi-bin exists
}

As a note, -e doesn't distinguish between files and directories. To check if something exists and is a plain file, use -f.

The other solutions that use the GLOBAL keyword are a nightmare to maintain/readability (+namespace pollution and bugs) when the project gets bigger. I've seen this mistake many times and had the hassle of fixing it.

Use a JavaScript file and then use module exports.

Example:

File globals.js

var Globals = {
    'domain':'www.MrGlobal.com';
}

module.exports = Globals;

Then if you want to use these, use require.

var globals = require('globals'); // << globals.js path
globals.domain // << Domain.

Xerces-based tools will emit the following error

The processing instruction target matching "[xX][mM][lL]" is not allowed.

when an XML declaration is encountered anywhere other than at the top of an XML file.

This is a valid diagnostic message; other XML parsers should issue a similar error message in this situation.

To correct the problem, check the following possibilities:

1. Some blank space or other visible content exists before the <?xml ?> declaration.

   Resolution: remove blank space or any other visible content before the XML declaration.

2. Some invisible content exists before the <?xml ?> declaration. Most commonly this is a Byte Order Mark (BOM).

   Resolution: Remove the BOM using techniques such as those suggested by the W3C page on the BOM in HTML.

3. A stray <?xml ?> declaration exists within the XML content. This can happen when XML files are combined programmatically or via cut-and-paste. There can only be one <?xml ?> declaration in an XML file, and it can only be at the top.

   Resolution: Search for <?xml in a case-insensitive manner, and remove all but the top XML declaration from the file.

Concurrent programming regards operations that appear to overlap and is primarily concerned with the complexity that arises due to non-deterministic control flow. The quantitative costs associated with concurrent programs are typically both throughput and latency. Concurrent programs are often IO bound but not always, e.g. concurrent garbage collectors are entirely on-CPU. The pedagogical example of a concurrent program is a web crawler. This program initiates requests for web pages and accepts the responses concurrently as the results of the downloads become available, accumulating a set of pages that have already been visited. Control flow is non-deterministic because the responses are not necessarily received in the same order each time the program is run. This characteristic can make it very hard to debug concurrent programs. Some applications are fundamentally concurrent, e.g. web servers must handle client connections concurrently. Erlang, F# asynchronous workflows and Scala's Akka library are perhaps the most promising approaches to highly concurrent programming.

Multicore programming is a special case of parallel programming. Parallel programming concerns operations that are overlapped for the specific goal of improving throughput. The difficulties of concurrent programming are evaded by making control flow deterministic. Typically, programs spawn sets of child tasks that run in parallel and the parent task only continues once every subtask has finished. This makes parallel programs much easier to debug than concurrent programs. The hard part of parallel programming is performance optimization with respect to issues such as granularity and communication. The latter is still an issue in the context of multicores because there is a considerable cost associated with transferring data from one cache to another. Dense matrix-matrix multiply is a pedagogical example of parallel programming and it can be solved efficiently by using Straasen's divide-and-conquer algorithm and attacking the sub-problems in parallel. Cilk is perhaps the most promising approach for high-performance parallel programming on multicores and it has been adopted in both Intel's Threaded Building Blocks and Microsoft's Task Parallel Library (in .NET 4).

The usage of org.apache.commons.httpclient.URI is not strictly an issue; what is an issue is that you target the wrong constructor, which is depreciated.

Using just

new URI( [string] );

Will indeed flag it as depreciated. What is needed is to provide at minimum one additional argument (the first, below), and ideally two:

1. escaped: true if URI character sequence is in escaped form. false otherwise.
2. charset: the charset string to do escape encoding, if required

This will target a non-depreciated constructor within that class. So an ideal usage would be as such:

new URI( [string], true, StandardCharsets.UTF_8.toString() );

A bit crazy-late in the game (a hair over 11 years later - egad!), but I hope this helps someone else, especially if the method at the far end is still expecting a URI, such as org.apache.commons.httpclient.setURI().

There isn't a last() or first() method in a Collection interface. For getting the last method, you can either do get(size() - 1) on a List or reverse the List and do get(0). I don't see a need to have last() method in any Collection API unless you are dealing with Stacks or Queues

All previous answers are correct, you have three options for what you are asking

1. dir()

2. vars()

3. __dict__

>>> dir(a)
['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', 'multi', 'str']
>>> vars(a)
{'multi': 4, 'str': '2'}
>>> a.__dict__
{'multi': 4, 'str': '2'}

Try this

function DisplayLocalSites
{

try{

Set-ExecutionPolicy unrestricted

$list = @()
foreach ($webapp in get-childitem IIS:\Sites\)
{
    $name = "IIS:\Sites\" + $webapp.name
    $item = @{}

$item.WebAppName = $webapp.name

foreach($Bind in $webapp.Bindings.collection)
{
    $item.SiteUrl = $Bind.Protocol +'://'+         $Bind.BindingInformation.Split(":")[-1]
}


$obj = New-Object PSObject -Property $item
$list += $obj
}

$list | Format-Table -a -Property "WebAppName","SiteUrl"

$list | Out-File -filepath C:\websites.txt

Set-ExecutionPolicy restricted

}
catch
{
$ExceptionMessage = "Error in Line: " + $_.Exception.Line + ". " +     $_.Exception.GetType().FullName + ": " + $_.Exception.Message + " Stacktrace: "    + $_.Exception.StackTrace
$ExceptionMessage
}
}

It depends on the server configuration or the relevant directives session.gc_maxlifetime in php.ini.

Typically the default is 24 minutes (1440 seconds), but your webhost may have altered the default to something else.

You can use HttpServletRequest.getScheme() to retrieve either "http" or "https".

Using it along with HttpServletRequest.getServerName() should be enough to rebuild the portion of the URL you need.

You don't need to explicitly put the port in the URL if you're using the standard ones (80 for http and 443 for https).

Edit: If your servlet container is behind a reverse proxy or load balancer that terminates the SSL, it's a bit trickier because the requests are forwarded to the servlet container as plain http. You have a few options:

1) Use HttpServletRequest.getHeader("x-forwarded-proto") instead; this only works if your load balancer sets the header correctly (Apache should afaik).

2) Configure a RemoteIpValve in JBoss/Tomcat that will make getScheme() work as expected. Again, this will only work if the load balancer sets the correct headers.

3) If the above don't work, you could configure two different connectors in Tomcat/JBoss, one for http and one for https, as described in this article.

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

Upgrading to version 8.9 worked for me.

        String string = String.format("%02d:%02d:%02d.%03d",
            TimeUnit.MILLISECONDS.toHours(millisecend), TimeUnit.MILLISECONDS.toMinutes(millisecend) - TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(millisecend)),
            TimeUnit.MILLISECONDS.toSeconds(millisecend) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millisecend)), millisecend - TimeUnit.SECONDS.toMillis(TimeUnit.MILLISECONDS.toSeconds(millisecend)));

Format: 00:00:00.000

Example: 615605 Millisecend

00:10:15.605

You need set image type :small_image or image

echo $this->helper('catalog/image')->init($_product, 'small_image')->resize(163, 100);

This is just a suggestion, it might not work and I'm prepared to be called on this.

This will generate false positives, but hopefully not false negatives.

1. Resize both of the images so that they are the same size (I assume that the ratios of widths to lengths are the same in both images).

2. Compress a bitmap of both images with a lossless compression algorithm (e.g. gzip).

3. Find pairs of files that have similar file sizes. For instance, you could just sort every pair of files you have by how similar the file sizes are and retrieve the top X.

As I said, this will definitely generate false positives, but hopefully not false negatives. You can implement this in five minutes, whereas the Porikil et. al. would probably require extensive work.

Note that in Swift, you can just do

let testBool: Bool = true
NSLog("testBool = %@", testBool.description)

This will log testBool = true

MMhh... Could you post your entire HTML doc and what browser/version your using?

I recreated your page and tested in 3 browsers (Chrome, FF, IE8). I was able to stop and start the awesome WDS4 trailer without any issues. Here is my code:

<!DOCTYPE html>
<html>
  <head>
    <title>Bootstrap 101 Template</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- Bootstrap -->
    <link href="bootstrap.min.css" rel="stylesheet" media="screen">

    <!-- HTML5 shim and Respond.js IE8 support of HTML5 elements and media queries -->
    <!--[if lt IE 9]>
      <script src="../../assets/js/html5shiv.js"></script>
      <script src="../../assets/js/respond.min.js"></script>
    <![endif]-->
  </head>
  <body>
    <div id="link">My video</div>

    <div id="myModal" class="modal fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
        <div class="modal-dialog">
            <div class="modal-content">

                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
                </div>

                <div class="modal-body">
                    <iframe width="400" height="300" frameborder="0" allowfullscreen=""></iframe>
                </div>
            </div>
        </div>
    </div>

    <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
    <script src="jq.js"></script>
    <!-- Include all compiled plugins (below), or include individual files as needed -->
    <script src="bootstrap.min.js"></script>
    <script>
    $('#link').click(function () {
        var src = 'http://www.youtube.com/v/FSi2fJALDyQ&amp;autoplay=1';
        $('#myModal').modal('show');
        $('#myModal iframe').attr('src', src);
    });

    $('#myModal button').click(function () {
        $('#myModal iframe').removeAttr('src');
    });
</script>
  </body>
</html>

You could try bringing the Z-Index of your modal player higher in the stack?

$('#myModal iframe').css("z-index","999");

Commit 59856de from Karsten Blees (kblees) for Git 1.9/2.0 (Q1 2014) clarifies that case:

gitignore.txt: clarify recursive nature of excluded directories

An optional prefix "!" which negates the pattern; any matching file excluded by a previous pattern will become included again.

It is not possible to re-include a file if a parent directory of that file is excluded. (*)
(*: unless certain conditions are met in git 2.8+, see below)
Git doesn't list excluded directories for performance reasons, so any patterns on contained files have no effect, no matter where they are defined.

Put a backslash ("\") in front of the first "!" for patterns that begin with a literal "!", for example, "\!important!.txt".

Example to exclude everything except a specific directory foo/bar (note the /* - without the slash, the wildcard would also exclude everything within foo/bar):

 --------------------------------------------------------------
     $ cat .gitignore
     # exclude everything except directory foo/bar
     /*
     !/foo
     /foo/*
     !/foo/bar
 --------------------------------------------------------------

In your case:

application/*
!application/**/
application/language/*
!application/language/**/
!application/language/gr/**

You must white-list folders first, before being able to white-list files within a given folder.

Update Feb/March 2016:

Note that with git 2.9.x/2.10 (mid 2016?), it might be possible to re-include a file if a parent directory of that file is excluded if there is no wildcard in the path re-included.

Nguy?n Thái Ng?c Duy (pclouds) is trying to add this feature:

• commit 506d8f1 for git v2.7.0, reverted in commit 76b620d git v2.8.0-rc0
• commit 5e57f9c git v2.8.0-rc0,... reverted(!) in commit 5cee3493 git 2.8.0.

So with git 2.9+, this could have actually worked, but was ultimately reverted:

application/
!application/language/gr/

I am reading some data from a file using read. Here I am reading data in a 2d char pointer but the method is the same for the 1d also. Just read character by character and do not worry about the exceptions because the condition in the while loop is handling the exceptions :D

  while ( (n = read(fd, buffer,1)) > 0 )
{   

if(buffer[0] == '\n')
{
  r++;
  char**tempData=(char**)malloc(sizeof(char*)*r);

  for(int a=0;a<r;a++)
  {
    tempData[a]=(char*)malloc(sizeof(char)*BUF_SIZE);
    memset(tempData[a],0,BUF_SIZE);
  }

  for(int a=0;a<r-1;a++)
  {
    strcpy(tempData[a],data[a]);
  }

   data=tempData;

   c=0;
}

else
{
  data[r-1][c]=buffer[0];
  c++;
  buffer[1]='\0';
}

   }

Lambda can be any function. So if you had a function

def compare_person(a):
         return a.age

You could sort a list of Person (each of which having an age attribute) like this:

sorted(personArray, key=compare_person)

This way, the list would be sorted by age in ascending order.

The parameter is called lambda because python has a nifty lambda keywords for defining such functions on the fly. Instead of defining a function compare_person and passing that to sorted, you can also write:

sorted(personArray, key=lambda a: a.age)

which does the same thing.

Another alternative is to use Pandas dataframe as it guarantees the order and the index locations of the items in a dict-like structure.

The problem in here is ms excel not recognizing the things which we entered as date, though is appears as date in menu bar. Select cell and type "=istext(cell ad)" then you can see it "TRUE" hence still your date ms excel thinks as a text that is why it aligns to left automatically. So we should change the type of text. There are many types of changing methods. but I think this too easy and lets do it now.

SELECT THE CELLS -> Go DATA in menu bar -> Then select "Text to Columns" object -> Select "Delimited" in first window then click next -> remove all ticks in the second window and hit next button -> last window select the "Date" and select your prefer date format then hit the finish button.(Then dates look like Wednesday, March 14, 2012) Then you can using previously used formula use and check whether our date is recognized in excel. Then you can Sort as you want. Thank you

openssl pkcs12 -inkey bob_key.pem -in bob_cert.cert -export -out bob_pfx.pfx

Following code prints names of classes in specified namespace defined in current assembly.
As other guys pointed out, a namespace can be scattered between different modules, so you need to get a list of assemblies first.

string nspace = "...";

var q = from t in Assembly.GetExecutingAssembly().GetTypes()
        where t.IsClass && t.Namespace == nspace
        select t;
q.ToList().ForEach(t => Console.WriteLine(t.Name));

For this case you can use ptp eclipse https://eclipse.org/ptp/ for source browsing and building.

You can use this pluging to debug your application

http://marketplace.eclipse.org/content/direct-remote-c-debugging

I think this part of code make changes to the context.

 Page page = BuildManager.CreateInstanceFromVirtualPath(
                        m_VirtualPath, 
                        typeof(Page)) as Page;// IHttpHandler;

Also this part of code is useless:

 if (page != null)
 {
     return page;
 }
 return page;

It will always return the page wither it's null or not.

Dictionary<string, double> accounts;

Indeed, you don't need to drop a @local_variable.

But if you use #local_table, it can be done, e.g. it's convenient to be able to re-execute a query several times.

SELECT *
INTO #recent_records
FROM dbo.my_table t
WHERE t.CreatedOn > '2021-01-01'
;

SELECT *
FROM #recent_records
;

/*
  can DROP here, otherwise will fail with the following error
  on re-execution in the same window (I use SSMS DB client):

  Msg 2714, Level ..., State ..., Line ...
  There is already an object named '#recent_records' in the database.
*/
DROP TABLE #recent_records
;

You can also put your SELECT statement in a TRANSACTION to be able to re-execute without an explicit DROP:

BEGIN TRANSACTION

  SELECT *
  INTO #recent_records
  FROM dbo.my_table t
  WHERE t.CreatedOn > '2021-01-01'
  ;

  SELECT *
  FROM #recent_records
  ;

ROLLBACK

With a report (rdl) file selected in your solution, select View and then Report Data.

It is a shortcut of Ctrl+Alt+D.

The actual problem of this error has nothing to do with file_get_content, the problem is the requested url if the url is not throwing content of the page and redirecting the request to some where else file_get_content says "Failed to open stream", just before file_get_contents check whether the url is working and not redirecting, here is the code:

function checkRedirect404($url) {

$ch = curl_init();

curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

    curl_setopt($ch, CURLOPT_URL, $url);
    $out = curl_exec($ch);

    // line endings is the wonkiest piece of this whole thing
    $out = str_replace("\r", "", $out);

    // only look at the headers
    $headers_end = strpos($out, "\n\n");
    if( $headers_end !== false ) { 
        $out = substr($out, 0, $headers_end);
    }   

    $headers = explode("\n", $out);
    foreach($headers as $header) {
        if( substr($header, 0, 10) == "Location: " ) { 
            $target = substr($header, 10);

            //echo "Redirects: $target<br>";

            return true;
        }   
    }   

    return false;

}

When you are developing an SDK. You need some extra operation.

1) create Localizable.strings as usual in YourLocalizeDemoSDK.

2) create the same Localizable.strings in YourLocalizeDemo.

3) find your Bundle Path of YourLocalizeDemoSDK.

Swift4:

// if you use NSLocalizeString in NSObject, you can use it like this
let value = NSLocalizedString("key", tableName: nil, bundle: Bundle(for: type(of: self)), value: "", comment: "")

Bundle(for: type(of: self)) helps you to find the bundle in YourLocalizeDemoSDK. If you use Bundle.main instead, you will get a wrong value(in fact it will be the same string with the key).

But if you want to use the String extension mentioned by dr OX. You need to do some more. The origin extension looks like this.

extension String {
    var localized: String {
        return NSLocalizedString(self, tableName: nil, bundle: Bundle.main, value: "", comment: "")
    }
}

As we know, we are developing an SDK, Bundle.main will get the bundle of YourLocalizeDemo's bundle. That's not what we want. We need the bundle in YourLocalizeDemoSDK. This is a trick to find it quickly.

Run the code below in a NSObject instance in YourLocalizeDemoSDK. And you will get the URL of YourLocalizeDemoSDK.

let bundleURLOfSDK = Bundle(for: type(of: self)).bundleURL
let mainBundleURL = Bundle.main.bundleURL

Print both of the two url, you will find that we can build bundleURLofSDK base on mainBundleURL. In this case, it will be:

let bundle = Bundle(url: Bundle.main.bundleURL.appendingPathComponent("Frameworks").appendingPathComponent("YourLocalizeDemoSDK.framework")) ?? Bundle.main

And the String extension will be:

extension String {
    var localized: String {
        let bundle = Bundle(url: Bundle.main.bundleURL.appendingPathComponent("Frameworks").appendingPathComponent("YourLocalizeDemoSDK.framework")) ?? Bundle.main
        return NSLocalizedString(self, tableName: nil, bundle: bundle, value: "", comment: "")
    }
}

Hope it helps.

Use the AsyncTask class (instead of Runnable). It has a method called onProgressUpdate which can affect the UI (it's invoked in the UI thread).

#! /bin/bash
  ^---

remove the indicated space. The shebang should be

#!/bin/bash

What's you've got there should be fine to work, but there is no actual "Is Mobile/Tablet" media query so you're always going to be stuck.

There are media queries for common breakpoints , but with the ever changing range of devices they're not guaranteed to work moving forwards.

The idea is that your site maintains the same brand across all sizes, so you should want the styles to cascade across the breakpoints and only update the widths and positioning to best suit that viewport.

To further the answer above, using Modernizr with a no-touch test will allow you to target touch devices which are most likely tablets and smart phones, however with the new releases of touch based screens that is not as good an option as it once was.

Nothing above helped me, but I figured this out by switching to another flavor in the Build Tools panel and then switching back to the needed one.

In addition to @ericgol's answer: In the French version of Visual Studio Community 2017, type "Concepteur de classes" in the search bar.

System call fork() is used to create processes. It takes no arguments and returns a process ID. The purpose of fork() is to create a new process, which becomes the child process of the caller. After a new child process is created, both processes will execute the next instruction following the fork() system call. Therefore, we have to distinguish the parent from the child. This can be done by testing the returned value of fork()

Fork is a system call and you shouldnt think of it as a normal C function. When a fork() occurs you effectively create two new processes with their own address space.Variable that are initialized before the fork() call store the same values in both the address space. However values modified within the address space of either of the process remain unaffected in other process one of which is parent and the other is child. So if,

pid=fork();

If in the subsequent blocks of code you check the value of pid.Both processes run for the entire length of your code. So how do we distinguish them. Again Fork is a system call and here is difference.Inside the newly created child process pid will store 0 while in the parent process it would store a positive value.A negative value inside pid indicates a fork error.

When we test the value of pid to find whether it is equal to zero or greater than it we are effectively finding out whether we are in the child process or the parent process.

Read more about Fork

One simple way to do that is:

String url = "http://test.com/Services/rest/{id}/Identifier"

UriComponents uriComponents = UriComponentsBuilder.fromUriString(url).build();
uriComponents = uriComponents.expand(Collections.singletonMap("id", "1234"));

and then adds the query params.

Here's one with extend()

types = ('*.jpg', '*.png')
images_list = []
for files in types:
    images_list.extend(glob.glob(os.path.join(path, files)))

From http://docs.jboss.org/hibernate/core/3.3/reference/en/html/session-configuration.html#configuration-logging

Here's the list of logger categories:

Category                    Function

org.hibernate.SQL           Log all SQL DML statements as they are executed
org.hibernate.type          Log all JDBC parameters
org.hibernate.tool.hbm2ddl  Log all SQL DDL statements as they are executed
org.hibernate.pretty        Log the state of all entities (max 20 entities) associated with the session at flush time
org.hibernate.cache         Log all second-level cache activity
org.hibernate.transaction   Log transaction related activity
org.hibernate.jdbc          Log all JDBC resource acquisition
org.hibernate.hql.ast.AST   Log HQL and SQL ASTs during query parsing
org.hibernate.secure        Log all JAAS authorization requests
org.hibernate               Log everything (a lot of information, but very useful for troubleshooting) 

Formatted for pasting into a log4j XML configuration file:

<!-- Log all SQL DML statements as they are executed -->
<Logger name="org.hibernate.SQL" level="debug" />
<!-- Log all JDBC parameters -->
<Logger name="org.hibernate.type" level="debug" />
<!-- Log all SQL DDL statements as they are executed -->
<Logger name="org.hibernate.tool.hbm2ddl" level="debug" />
<!-- Log the state of all entities (max 20 entities) associated with the session at flush time -->
<Logger name="org.hibernate.pretty" level="debug" />
<!-- Log all second-level cache activity -->
<Logger name="org.hibernate.cache" level="debug" />
<!-- Log transaction related activity -->
<Logger name="org.hibernate.transaction" level="debug" />
<!-- Log all JDBC resource acquisition -->
<Logger name="org.hibernate.jdbc" level="debug" />
<!-- Log HQL and SQL ASTs during query parsing -->
<Logger name="org.hibernate.hql.ast.AST" level="debug" />
<!-- Log all JAAS authorization requests -->
<Logger name="org.hibernate.secure" level="debug" />
<!-- Log everything (a lot of information, but very useful for troubleshooting) -->
<Logger name="org.hibernate" level="debug" />

NB: Most of the loggers use the DEBUG level, however org.hibernate.type uses TRACE. In previous versions of Hibernate org.hibernate.type also used DEBUG, but as of Hibernate 3 you must set the level to TRACE (or ALL) in order to see the JDBC parameter binding logging.

And a category is specified as such:

<logger name="org.hibernate">
    <level value="ALL" />
    <appender-ref ref="FILE"/>
</logger>

It must be placed before the root element.

Use chown to change ownership and chmod to change rights.

use the -R option to apply the rights for all files inside of a directory too.

Note that both these commands just work for directories too. The -R option makes them also change the permissions for all files and directories inside of the directory.

For example

sudo chown -R username:group directory

will change ownership (both user and group) of all files and directories inside of directory and directory itself.

sudo chown username:group directory

will only change the permission of the folder directory but will leave the files and folders inside the directory alone.

you need to use sudo to change the ownership from root to yourself.

Edit:

Note that if you use chown user: file (Note the left-out group), it will use the default group for that user.

Also You can change the group ownership of a file or directory with the command:

chgrp group_name file/directory_name

You must be a member of the group to which you are changing ownership to.

You can find group of file as follows

# ls -l file
-rw-r--r-- 1 root family 0 2012-05-22 20:03 file

# chown sujit:friends file

User 500 is just a normal user. Typically user 500 was the first user on the system, recent changes (to /etc/login.defs) has altered the minimum user id to 1000 in many distributions, so typically 1000 is now the first (non root) user.

What you may be seeing is a system which has been upgraded from the old state to the new state and still has some processes knocking about on uid 500. You can likely change it by first checking if your distro should indeed now use 1000, and if so alter the login.defs file yourself, the renumber the user account in /etc/passwd and chown/chgrp all their files, usually in /home/, then reboot.

But in answer to your question, no, you should not really be worried about this in all likelihood. It'll be showing as "500" instead of a username because o user in /etc/passwd has a uid set of 500, that's all.

Also you can show your current numbers using id i'm willing to bet it comes back as 1000 for you.

You can use the OFFSET FETCH clause.

SELECT COUNT(1) FROM COHORT; --Number of results to expect

SELECT * FROM COHORT 
ORDER BY ID
OFFSET 900 ROWS --Assuming you expect 1000 rows
FETCH NEXT 100 ROWS ONLY;

(This is for Microsoft SQL Server)

Official documentation: https://www.sqlservertutorial.net/sql-server-basics/sql-server-offset-fetch/

#include<iostream>
#include<ctime>

int main()
{
    std::time_t t = std::time(0);  // t is an integer type
    std::cout << t << " seconds since 01-Jan-1970\n";
    return 0;
}

I would override your Tuple with a proper GetHashCode, and just use it as the key.

As long as you overload the proper methods, you should see decent performance.

With the introduction of lambda expression in Java 8 you can now have anonymous methods.

Say I have a class Alpha and I want to filter Alphas on a specific condition. To do this you can use a Predicate<Alpha>. This is a functional interface which has a method test that accepts an Alpha and returns a boolean.

Assuming that the filter method has this signature:

List<Alpha> filter(Predicate<Alpha> filterPredicate)

With the old anonymous class solution you would need to something like:

filter(new Predicate<Alpha>() {
   boolean test(Alpha alpha) {
      return alpha.centauri > 1;
   }
});

With the Java 8 lambdas you can do:

filter(alpha -> alpha.centauri > 1);

For more detailed information see the Lambda Expressions tutorial

<form method="post" action="addMember.php" enctype="multipart/form-data">
    <p>
              Please Enter the Band Members Name.
            </p>
            <p>
              Band Member or Affiliates Name:
            </p>
            <input type="text" name="nameMember"/>
            <p>
              Please Enter the Band Members Position. Example:Drums.
            </p>
            <p>
              Band Position:
            </p>
            <input type="text" name="bandMember"/>
            <p>
              Please Upload a Photo of the Member in gif or jpeg format. The file name should be named after the Members name. If the same file name is uploaded twice it will be overwritten! Maxium size of File is 35kb.
            </p>
            <p>
              Photo:
            </p>
            <input type="hidden" name="size" value="350000">
            <input type="file" name="photo"> 
            <p>
              Please Enter any other information about the band member here.
            </p>
            <p>
              Other Member Information:
            </p>
<textarea rows="10" cols="35" name="aboutMember">
</textarea>
            <p>
              Please Enter any other Bands the Member has been in.
            </p>
            <p>
              Other Bands:
            </p>
            <input type="text" name="otherBands" size=30 />
            <br/>
            <br/>
            <input TYPE="submit" name="upload" title="Add data to the Database" value="Add Member"/>
          </form>

save it as addMember.php

<?php

//This is the directory where images will be saved
$target = "your directory";
$target = $target . basename( $_FILES['photo']['name']);

//This gets all the other information from the form
$name=$_POST['nameMember'];
$bandMember=$_POST['bandMember'];
$pic=($_FILES['photo']['name']);
$about=$_POST['aboutMember'];
$bands=$_POST['otherBands'];


// Connects to your Database
mysql_connect("yourhost", "username", "password") or die(mysql_error()) ;
mysql_select_db("dbName") or die(mysql_error()) ;

//Writes the information to the database
mysql_query("INSERT INTO tableName (nameMember,bandMember,photo,aboutMember,otherBands)
VALUES ('$name', '$bandMember', '$pic', '$about', '$bands')") ;

//Writes the photo to the server
if(move_uploaded_file($_FILES['photo']['tmp_name'], $target))
{

//Tells you if its all ok
echo "The file ". basename( $_FILES['photo']['name']). " has been uploaded, and your information has been added to the directory";
}
else {

//Gives and error if its not
echo "Sorry, there was a problem uploading your file.";
}
?>

in the above code one little bug ,i fixed that bug.

I'm a little confused. "foo.html" is just the name of your template. There's no inherent relationship between the route name "foo" and the template name "foo.html".

To achieve the goal of not rewriting logic code for two different routes, I would just define a function and call that for both routes. I wouldn't use redirect because that actually redirects the client/browser which requires them to load two pages instead of one just to save you some coding time - which seems mean :-P

So maybe:

def super_cool_logic():
    # execute common code here

@app.route("/foo")
def do_foo():
    # do some logic here
    super_cool_logic()
    return render_template("foo.html")

@app.route("/baz")
def do_baz():
    if some_condition:
        return render_template("baz.html")
    else:
        super_cool_logic()
        return render_template("foo.html", messages={"main":"Condition failed on page baz"})

I feel like I'm missing something though and there's a better way to achieve what you're trying to do (I'm not really sure what you're trying to do)

Have you tried following the advice on the linked help page? The help page at http://g.co/mapsJSApiErrors says:

ApiNotActivatedMapError

The Google Maps JavaScript API is not activated on your API project. You may need to enable the Google Maps JavaScript API under APIs in the Google Developers Console.

See Obtaining an API key.

So check that the key you are using has Google Maps JavaScript API enabled.

This is because of the proxy settings. I also had the same problem, under which I could not use any of the modules which were fetching data from the internet. There are simple steps to follow:
1. open the control panel
2. open internet options
3. under connection tab open LAN settings
4. go to advance settings and unmark everything, delete every proxy in there. Or u can just unmark the checkbox in proxy server this will also do the same
5. save all the settings by clicking ok.
you are done. try to run the programme again, it must work it worked for me at least

EXISTS will tell you whether a query returned any results. e.g.:

SELECT * 
FROM Orders o 
WHERE EXISTS (
    SELECT * 
    FROM Products p 
    WHERE p.ProductNumber = o.ProductNumber)

IN is used to compare one value to several, and can use literal values, like this:

SELECT * 
FROM Orders 
WHERE ProductNumber IN (1, 10, 100)

You can also use query results with the IN clause, like this:

SELECT * 
FROM Orders 
WHERE ProductNumber IN (
    SELECT ProductNumber 
    FROM Products 
    WHERE ProductInventoryQuantity > 0)

In a browser with fetch (basically all of them now):

At the moment, we can't import files with a JSON mime type, only files with a JavaScript mime type. It might be a feature added in the future (official discussion).

fetch('./file.json')
  .then(response => response.json())
  .then(obj => console.log(obj))

In Node.js v13.2+:

It currently requires the --experimental-json-modules flag, otherwise it isn't supported by default.

Try running

node --input-type module --experimental-json-modules --eval "import obj from './file.json'; console.log(obj)"

and see the obj content outputted to console.

You can able to download Xcode DMG file from the

Apple Developer portal

Xcode 9.4 Beta

Xcode 9.3

Assuming you already have a JFrame to call this from:

JOptionPane.showMessageDialog(frame, "thank you for using java");

See The Java Tutorials: How to Make Dialogs
See the JavaDoc

If you want to extend it just because you need Not-Swipeable behaviour, you dont need to do it. ViewPager2 provides nice property called : isUserInputEnabled

you can use generic class:

class Wrapped<T>  {
    private T _value;

    public Action ValueChanged;

    public T Value
    {
        get => _value;

        set
        {
            _value = value;
            OnValueChanged();
        }
    }

    protected virtual void OnValueChanged() => ValueChanged?.Invoke() ;
}

and will be able to do the following:

var i = new Wrapped<int>();

i.ValueChanged += () => { Console.WriteLine("changed!"); };

i.Value = 10;
i.Value = 10;
i.Value = 10;
i.Value = 10;

Console.ReadKey();

result:

changed!
changed!
changed!
changed!
changed!
changed!
changed!

I like to copy a file into multiple directories as such: cp file1 /foo/; cp file1 /bar/; cp file1 /foo2/; cp file1 /bar2/ And copying a directory into other directories: cp -r dir1/ /foo/; cp -r dir1/ /bar/; cp -r dir1/ /foo2/; cp -r dir1/ /bar2/

I know it's like issuing several commands, but it works well for me when I want to type 1 line and walk away for a while.

To select the right location provider for your app, you can use Criteria objects:

Criteria myCriteria = new Criteria();
myCriteria.setAccuracy(Criteria.ACCURACY_HIGH);
myCriteria.setPowerRequirement(Criteria.POWER_LOW);
// let Android select the right location provider for you
String myProvider = locationManager.getBestProvider(myCriteria, true); 

// finally require updates at -at least- the desired rate
long minTimeMillis = 600000; // 600,000 milliseconds make 10 minutes
locationManager.requestLocationUpdates(myProvider,minTimeMillis,0,locationListener); 

Read the documentation for requestLocationUpdates for more details on how the arguments are taken into account:

The frequency of notification may be controlled using the minTime and minDistance parameters. If minTime is greater than 0, the LocationManager could potentially rest for minTime milliseconds between location updates to conserve power. If minDistance is greater than 0, a location will only be broadcasted if the device moves by minDistance meters. To obtain notifications as frequently as possible, set both parameters to 0.

More thoughts

• You can monitor the accuracy of the Location objects with Location.getAccuracy(), which returns the estimated accuracy of the position in meters.
• the Criteria.ACCURACY_HIGH criterion should give you errors below 100m, which is not as good as GPS can be, but matches your needs.
• You also need to monitor the status of your location provider, and switch to another provider if it gets unavailable or disabled by the user.
• The passive provider may also be a good match for this kind of application: the idea is to use location updates whenever they are requested by another app and broadcast systemwide.

SHA1 is a one way hash. So you can not really revert it.

That's why applications use it to store the hash of the password and not the password itself.

Like every hash function SHA-1 maps a large input set (the keys) to a smaller target set (the hash values). Thus collisions can occur. This means that two values of the input set map to the same hash value.

Obviously the collision probability increases when the target set is getting smaller. But vice versa this also means that the collision probability decreases when the target set is getting larger and SHA-1's target set is 160 bit.

Jeff Preshing, wrote a very good blog about Hash Collision Probabilities that can help you to decide which hash algorithm to use. Thanks Jeff.

In his blog he shows a table that tells us the probability of collisions for a given input set.

As you can see the probability of a 32-bit hash is 1 in 2 if you have 77163 input values.

A simple java program will show us what his table shows:

public class Main {

    public static void main(String[] args) {
        char[] inputValue = new char[10];

        Map<Integer, String> hashValues = new HashMap<Integer, String>();

        int collisionCount = 0;

        for (int i = 0; i < 77163; i++) {
            String asString = nextValue(inputValue);
            int hashCode = asString.hashCode();
            String collisionString = hashValues.put(hashCode, asString);
            if (collisionString != null) {
                collisionCount++;
                System.out.println("Collision: " + asString + " <-> " + collisionString);
            }
        }

        System.out.println("Collision count: " + collisionCount);
    }

    private static String nextValue(char[] inputValue) {
        nextValue(inputValue, 0);

        int endIndex = 0;
        for (int i = 0; i < inputValue.length; i++) {
            if (inputValue[i] == 0) {
                endIndex = i;
                break;
            }
        }

        return new String(inputValue, 0, endIndex);
    }

    private static void nextValue(char[] inputValue, int index) {
        boolean increaseNextIndex = inputValue[index] == 'z';

        if (inputValue[index] == 0 || increaseNextIndex) {
            inputValue[index] = 'A';
        } else {
            inputValue[index] += 1;
        }

        if (increaseNextIndex) {
            nextValue(inputValue, index + 1);
        }

    }

}

My output end with:

Collision: RvV <-> SWV
Collision: SvV <-> TWV
Collision: TvV <-> UWV
Collision: UvV <-> VWV
Collision: VvV <-> WWV
Collision: WvV <-> XWV
Collision count: 35135

It produced 35135 collsions and that's the nearly the half of 77163. And if I ran the program with 30084 input values the collision count is 13606. This is not exactly 1 in 10, but it is only a probability and the example program is not perfect, because it only uses the ascii chars between A and z.

Let's take the last reported collision and check

System.out.println("VvV".hashCode());
System.out.println("WWV".hashCode());

My output is

86390
86390

Conclusion:

If you have a SHA-1 value and you want to get the input value back you can try a brute force attack. This means that you have to generate all possible input values, hash them and compare them with the SHA-1 you have. But that will consume a lot of time and computing power. Some people created so called rainbow tables for some input sets. But these do only exist for some small input sets.

And remember that many input values map to a single target hash value. So even if you would know all mappings (which is impossible, because the input set is unbounded) you still can't say which input value it was.

array is a slightly misleading name. For a dynamically allocated array of pointers, malloc will return a pointer to a block of memory. You need to use Chess* and not Chess[] to hold the pointer to your array.

Chess *array = malloc(size * sizeof(Chess));
array[i] = NULL;

and perhaps later:

/* create new struct chess */
array[i] = malloc(sizeof(struct chess));

/* set up its members */
array[i]->size = 0;
/* etc. */

None of these answers worked for me (generally there was a missing reference or something along those lines)

But this quite simply did:

Using FolderBrowserDialog in WPF application

Add a reference to System.Windows.Forms and use this code:

  var dialog = new System.Windows.Forms.FolderBrowserDialog();
  System.Windows.Forms.DialogResult result = dialog.ShowDialog();

No need to track down missing packages. Or add enormous classes

This gives me a modern folder selector that also allows you to create a new folder

I'm yet to see the impact when deployed to other machines

You should inject a startup script that will close the page after the postback has finished.

ClientScript.RegisterStartupScript(typeof(Page), "closePage", "<script type='text/JavaScript'>window.close();</script>"); 

Your question feels a little incomplete, but I think what you're looking for is a way of making your JSON accessible to your code:

if you have the JSON string as above then you'd just need to do this

var jsonObj = eval('[{"id":28,"Title":"Sweden"}, {"id":56,"Title":"USA"}, {"id":89,"Title":"England"}]');

then you can access these vars with something like jsonObj[0].id etc

Let me know if that's not what you were getting at and I'll try to help.

M

Yes, it's definitely possible, although I am struggling with the same issue at the moment. I've managed to get the cells to hide and everything works ok, but I cannot currently make the thing animate neatly. Here is what I have found:

I am hiding rows based on the state of an ON / OFF switch in the first row of the first section. If the switch is ON there is 1 row beneath it in the same section, otherwise there are 2 different rows.

I have a selector called when the switch is toggled, and I set a variable to indicate which state I am in. Then I call:

[[self tableView] reloadData];

I override the tableView:willDisplayCell:forRowAtIndexPath: function and if the cell is supposed to be hidden I do this:

[cell setHidden:YES];

That hides the cell and its contents, but does not remove the space it occupies.

To remove the space, override the tableView:heightForRowAtIndexPath: function and return 0 for rows that should be hidden.

You also need to override tableView:numberOfRowsInSection: and return the number of rows in that section. You have to do something strange here so that if your table is a grouped style the rounded corners occur on the correct cells. In my static table there is the full set of cells for the section, so there is the first cell containing the option, then 1 cell for the ON state options and 2 more cells for the OFF state options, a total of 4 cells. When the option is ON, I have to return 4, this includes the hidden option so that the last option displayed has a rounded box. When the option is off, the last two options are not displayed so I return 2. This all feels clunky. Sorry if this isn't very clear, its tricky to describe. Just to illustrate the setup, this is the construction of the table section in IB:

• Row 0: Option with ON / OFF switch
• Row 1: Displayed when option is ON
• Row 2: Displayed when option is OFF
• Row 3: Displayed when option is OFF

So when the option is ON the table reports two rows which are:

• Row 0: Option with ON / OFF switch
• Row 1: Displayed when option is ON

When the option is OFF the table reports four rows which are:

• Row 0: Option with ON / OFF switch
• Row 1: Displayed when option is ON
• Row 2: Displayed when option is OFF
• Row 3: Displayed when option is OFF

This approach doesn't feel correct for several reasons, its just as far as I have got with my experimentation so far, so please let me know if you find a better way. The problems I have observed so far are:

• It feels wrong to be telling the table the number of rows is different to what is presumably contained in the underlying data.

• I can't seem to animate the change. I've tried using tableView:reloadSections:withRowAnimation: instead of reloadData and the results don't seem to make sense, I'm still trying to get this working. Currently what seems to happen is the tableView does not update the correct rows so one remains hidden that should be displayed and a void is left under the first row. I think this might be related to the first point about the underlying data.

Hopefully someone will be able to suggest alternative methods or perhaps how to extend with animation, but maybe this will get you started. My apologies for the lack of hyperlinks to functions, I put them in but they were rejected by the spam filter because I am a fairly new user.

You have a lot of pointless jQuery in there, but the $compile service is actually super simple in this case:

.directive( 'test', function ( $compile ) {
  return {
    restrict: 'E',
    scope: { text: '@' },
    template: '<p ng-click="add()">{{text}}</p>',
    controller: function ( $scope, $element ) {
      $scope.add = function () {
        var el = $compile( "<test text='n'></test>" )( $scope );
        $element.parent().append( el );
      };
    }
  };
});

You'll notice I refactored your directive too in order to follow some best practices. Let me know if you have questions about any of those.

Here is an example of what you are trying to do => fiddle

$(document).ready(function () {_x000D_
    $("#type").change(function () {_x000D_
        var val = $(this).val();_x000D_
        if (val == "item1") {_x000D_
            $("#size").html("<option value='test'>item1: test 1</option><option value='test2'>item1: test 2</option>");_x000D_
        } else if (val == "item2") {_x000D_
            $("#size").html("<option value='test'>item2: test 1</option><option value='test2'>item2: test 2</option>");_x000D_
        } else if (val == "item3") {_x000D_
            $("#size").html("<option value='test'>item3: test 1</option><option value='test2'>item3: test 2</option>");_x000D_
        } else if (val == "item0") {_x000D_
            $("#size").html("<option value=''>--select one--</option>");_x000D_
        }_x000D_
    });_x000D_
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>_x000D_
<select id="type">_x000D_
    <option value="item0">--Select an Item--</option>_x000D_
    <option value="item1">item1</option>_x000D_
    <option value="item2">item2</option>_x000D_
    <option value="item3">item3</option>_x000D_
</select>_x000D_
_x000D_
<select id="size">_x000D_
    <option value="">-- select one -- </option>_x000D_
</select>

First use:

yarn application -list

Note down the application id Then to kill use:

yarn application -kill application_id

if mysql is okay for you:

SELECT flights.*, 
       fromairports.city as fromCity, 
       toairports.city as toCity
FROM flights
LEFT JOIN (airports as fromairports, airports as toairports)
ON (fromairports.code=flights.fairport AND toairports.code=flights.tairport )
WHERE flights.fairport = '?' OR fromairports.city = '?'

edit: added example to filter the output for code or city

Background

Absolute: The browser will always interpret / as the root of the hostname. For example, if my site was http://google.com/ and I specified /css/images.css then it would search for that at http://google.com/css/images.css. If your project root was actually at /myproject/ it would not find the css file. Therefore, you need to determine where your project folder root is relative to the hostname, and specify that in your href notation.

Relative: If you want to reference something you know is in the same path on the url - that is, if it is in the same folder, for example http://mysite.com/myUrlPath/index.html and http://mysite.com/myUrlPath/css/style.css, and you know that it will always be this way, you can go against convention and specify a relative path by not putting a leading / in front of your path, for example, css/style.css.

Filesystem Notations: Additionally, you can use standard filesystem notations like ... If you do http://google.com/images/../images/../images/myImage.png it would be the same as http://google.com/images/myImage.png. If you want to reference something that is one directory up from your file, use ../myFile.css.

Your Specific Case

In your case, you have two options:

• <link rel="stylesheet" type="text/css" href="/ServletApp/css/styles.css"/>
• <link rel="stylesheet" type="text/css" href="css/styles.css"/>

The first will be more concrete and compatible if you move things around, however if you are planning to keep the file in the same location, and you are planning to remove the /ServletApp/ part of the URL, then the second solution is better.

java.util.Date date= new Date();
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int month = cal.get(Calendar.MONTH);

For those saying that the answer of @kuester2000 does not work, please be aware that HTTP requests, first try to find the host IP with a DNS request and then makes the actual HTTP request to the server, so you may also need to set a timeout for the DNS request.

If your code worked without the timeout for the DNS request it's because you are able to reach a DNS server or you are hitting the Android DNS cache. By the way you can clear this cache by restarting the device.

This code extends the original answer to include a manual DNS lookup with a custom timeout:

//Our objective
String sURL = "http://www.google.com/";
int DNSTimeout = 1000;
int HTTPTimeout = 2000;

//Get the IP of the Host
URL url= null;
try {
     url = ResolveHostIP(sURL,DNSTimeout);
} catch (MalformedURLException e) {
    Log.d("INFO",e.getMessage());
}

if(url==null){
    //the DNS lookup timed out or failed.
}

//Build the request parameters
HttpParams params = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(params, HTTPTimeout);
HttpConnectionParams.setSoTimeout(params, HTTPTimeout);

DefaultHttpClient client = new DefaultHttpClient(params);

HttpResponse httpResponse;
String text;
try {
    //Execute the request (here it blocks the execution until finished or a timeout)
    httpResponse = client.execute(new HttpGet(url.toString()));
} catch (IOException e) {
    //If you hit this probably the connection timed out
    Log.d("INFO",e.getMessage());
}

//If you get here everything went OK so check response code, body or whatever

Used method:

//Run the DNS lookup manually to be able to time it out.
public static URL ResolveHostIP (String sURL, int timeout) throws MalformedURLException {
    URL url= new URL(sURL);
    //Resolve the host IP on a new thread
    DNSResolver dnsRes = new DNSResolver(url.getHost());
    Thread t = new Thread(dnsRes);
    t.start();
    //Join the thread for some time
    try {
        t.join(timeout);
    } catch (InterruptedException e) {
        Log.d("DEBUG", "DNS lookup interrupted");
        return null;
    }

    //get the IP of the host
    InetAddress inetAddr = dnsRes.get();
    if(inetAddr==null) {
        Log.d("DEBUG", "DNS timed out.");
        return null;
    }

    //rebuild the URL with the IP and return it
    Log.d("DEBUG", "DNS solved.");
    return new URL(url.getProtocol(),inetAddr.getHostAddress(),url.getPort(),url.getFile());
}   

This class is from this blog post. Go and check the remarks if you will use it.

public static class DNSResolver implements Runnable {
    private String domain;
    private InetAddress inetAddr;

    public DNSResolver(String domain) {
        this.domain = domain;
    }

    public void run() {
        try {
            InetAddress addr = InetAddress.getByName(domain);
            set(addr);
        } catch (UnknownHostException e) {
        }
    }

    public synchronized void set(InetAddress inetAddr) {
        this.inetAddr = inetAddr;
    }
    public synchronized InetAddress get() {
        return inetAddr;
    }
}

Only from code:

namespace xxx.DsXxxTableAdapters {_x000D_
    partial class ZzzTableAdapter_x000D_
    {_x000D_
        public void SetTimeout(int timeout)_x000D_
        {_x000D_
            if (this.Adapter.DeleteCommand != null) { this.Adapter.DeleteCommand.CommandTimeout = timeout; }_x000D_
            if (this.Adapter.InsertCommand != null) { this.Adapter.InsertCommand.CommandTimeout = timeout; }_x000D_
            if (this.Adapter.UpdateCommand != null) { this.Adapter.UpdateCommand.CommandTimeout = timeout; }_x000D_
            if (this._commandCollection == null) { this.InitCommandCollection(); }_x000D_
            if (this._commandCollection != null)_x000D_
            {_x000D_
                foreach (System.Data.SqlClient.SqlCommand item in this._commandCollection)_x000D_
                {_x000D_
                    if (item != null)_x000D_
                    { item.CommandTimeout = timeout; }_x000D_
                }_x000D_
            }_x000D_
        }_x000D_
    }_x000D_
 _x000D_
    //...._x000D_
 _x000D_
 }

See String.format method.

String s = "hello %s!";
s = String.format(s, "world");
assertEquals(s, "hello world!"); // should be true

This will happen from time to time either when a connection times out or when a remote host terminates their connection (closed application, computer shutdown, etc). You can avoid this by managing sockets yourself and handling disconnections in your application via its communications protocol and then calling shutdownInput and shutdownOutput to clear up the session.

Here's a nice way to get the checked radio button's value with plain JavaScript:

const form = document.forms.demo;
const checked = form.querySelector('input[name=characters]:checked');

// log out the value from the :checked radio
console.log(checked.value);

Source: https://ultimatecourses.com/blog/get-value-checked-radio-buttons

Using this HTML:

<form name="demo">
  <label>
    Mario
    <input type="radio" value="mario" name="characters" checked>
  </label>
  <label>
    Luigi
    <input type="radio" value="luigi" name="characters">
  </label>
  <label>
    Toad
    <input type="radio" value="toad" name="characters">
  </label>
</form>

You could also use Array Find the checked property to find the checked item:

Array.from(form.elements.characters).find(radio => radio.checked);

Surely using your own panel or form would be by far the simplest approach if a little more heavy on the background (designer) code. It gives all the control in terms of centring and manipulation without writing all that custom code.

SUBSTRING('JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ', (@intMonth * 4) - 3, 3)

"Gets the path or UNC location of the loaded file that contains the manifest."

See: http://msdn.microsoft.com/en-us/library/system.reflection.assembly.location.aspx

Application.ResourceAssembly.Location

You can pass values by using the below .

@Html.ActionLink("About", "About", "Home",new { name = ViewBag.Name }, htmlAttributes:null )

Controller:

public ActionResult About(string name)
        {
            ViewBag.Message = "Your application description page.";
            ViewBag.NameTransfer = name;
            return View();
        }

And the URL looks like

http://localhost:50297/Home/About?name=My%20Name%20is%20Vijay

// use `/ 1048576` to get ram in MB
// and `/ (1048576 * 1024)` or `/ 1048576 / 1024` to get ram in GB
private static String getRAMsize()
{
    ManagementClass mc = new ManagementClass("Win32_ComputerSystem");
    ManagementObjectCollection moc = mc.GetInstances();
    foreach (ManagementObject item in moc)
    {
       return Convert.ToString(Math.Round(Convert.ToDouble(item.Properties["TotalPhysicalMemory"].Value) / 1048576, 0)) + " MB";
    }

    return "RAMsize";
}

I’d use tr:

tr < file-with-nulls -d '\000' > file-without-nulls

If you are wondering if input redirection in the middle of the command arguments works, it does. Most shells will recognize and deal with I/O redirection (<, >, …) anywhere in the command line, actually.

It is possible using Apex Recovery Tool,i have successfully recovered my table rows which i accidentally deleted

if you download the trial version it will recover only 10th row

check here http://www.apexsql.com/sql_tools_log.aspx

I normally use the HttpPostedFileBase parameter only in Mvc Controllers. When dealing with ApiControllers try checking the HttpContext.Current.Request.Files property for incoming files instead:

[HttpPost]
public string UploadFile()
{
    var file = HttpContext.Current.Request.Files.Count > 0 ?
        HttpContext.Current.Request.Files[0] : null;

    if (file != null && file.ContentLength > 0)
    {
        var fileName = Path.GetFileName(file.FileName);

        var path = Path.Combine(
            HttpContext.Current.Server.MapPath("~/uploads"),
            fileName
        );

        file.SaveAs(path);
    }

    return file != null ? "/uploads/" + file.FileName : null;
}

I wanted the simplest case, finally this is a result:

echo -n 'Tell me the length of this sentence.' | wc -m;
36

#include <iostream>
#include <cmath>
using namespace std;

int main()
{
    double x=54.999999999999943157;
    int y=ceil(x);//The ceil() function returns the smallest integer no less than x
    return 0;
}

To check that the file you're trying to open actually exists, you can change directories in terminal using cd. To change to ~/Desktop/sass/css: cd ~/Desktop/sass/css. To see what files are in the directory: ls.

If you want information about either of those commands, use the man page: man cd or man ls, for example.

Google for "basic unix command line commands" or similar; that will give you numerous examples of moving around, viewing files, etc in the command line.

On Mac OS X, you can also use open to open a finder window: open . will open the current directory in finder. (open ~/Desktop/sass/css will open the ~/Desktop/sass/css).

A great search engine for special characters that I recenetly found: amp-what?

You can even search by object name, like "arrow", "chess", etc...

This is an expansion to totem's answer. It does basically the same thing but the property matching is based on the serialized json object, not reflect the .net object. This is important if you're using [JsonProperty], using the CamelCasePropertyNamesContractResolver, or doing anything else that will cause the json to not match the .net object.

Usage is simple:

[KnownType(typeof(B))]
public class A
{
   public string Name { get; set; }
}

public class B : A
{
   public string LastName { get; set; }
}

Converter code:

/// <summary>
/// Use KnownType Attribute to match a divierd class based on the class given to the serilaizer
/// Selected class will be the first class to match all properties in the json object.
/// </summary>
public class KnownTypeConverter : JsonConverter {
    public override bool CanConvert( Type objectType ) {
        return System.Attribute.GetCustomAttributes( objectType ).Any( v => v is KnownTypeAttribute );
    }

    public override bool CanWrite {
        get { return false; }
    }

    public override object ReadJson( JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer ) {
        // Load JObject from stream
        JObject jObject = JObject.Load( reader );

        // Create target object based on JObject
        System.Attribute[ ] attrs = System.Attribute.GetCustomAttributes( objectType );  // Reflection. 

        // check known types for a match. 
        foreach( var attr in attrs.OfType<KnownTypeAttribute>( ) ) {
            object target = Activator.CreateInstance( attr.Type );

            JObject jTest;
            using( var writer = new StringWriter( ) ) {
                using( var jsonWriter = new JsonTextWriter( writer ) ) {
                    serializer.Serialize( jsonWriter, target );
                    string json = writer.ToString( );
                    jTest = JObject.Parse( json );
                }
            }

            var jO = this.GetKeys( jObject ).Select( k => k.Key ).ToList( );
            var jT = this.GetKeys( jTest ).Select( k => k.Key ).ToList( );

            if( jO.Count == jT.Count && jO.Intersect( jT ).Count( ) == jO.Count ) {
                serializer.Populate( jObject.CreateReader( ), target );
                return target;
            }
        }

        throw new SerializationException( string.Format( "Could not convert base class {0}", objectType ) );
    }

    public override void WriteJson( JsonWriter writer, object value, JsonSerializer serializer ) {
        throw new NotImplementedException( );
    }

    private IEnumerable<KeyValuePair<string, JToken>> GetKeys( JObject obj ) {
        var list = new List<KeyValuePair<string, JToken>>( );
        foreach( var t in obj ) {
            list.Add( t );
        }
        return list;
    }
}

I use following in one of my common header in the project that covers all bases:

#define _USE_MATH_DEFINES
#include <cmath>

#ifndef M_PI
#define M_PI (3.14159265358979323846)
#endif

#ifndef M_PIl
#define M_PIl (3.14159265358979323846264338327950288)
#endif

On a side note, all of below compilers define M_PI and M_PIl constants if you include <cmath>. There is no need to add `#define _USE_MATH_DEFINES which is only required for VC++.

x86 GCC 4.4+
ARM GCC 4.5+
x86 Clang 3.0+

Try: 

SELECT EXTRACT(EPOCH FROM (timestamp_B - timestamp_A))
FROM TableA

Details here: EXTRACT.

I've had the same issue. Upgrading to gradle 5.0 did the trick for me.

This link provides detailed steps on how install gradle 5.0: https://linuxize.com/post/how-to-install-gradle-on-ubuntu-18-04/

As the answers indicate (if you examine them carefully!), your question is ambiguous. What do you mean by "an A-z letter" or a digit?

• If you want to know if a character is a Unicode letter or digit, then use the Character.isLetter and Character.isDigit methods.

• If you want to know if a character is an ASCII letter or digit, then the best thing to do is to test by comparing with the character ranges 'a' to 'z', 'A' to 'Z' and '0' to '9'.

Note that all ASCII letters / digits are Unicode letters / digits ... but there are many Unicode letters / digits characters that are not ASCII. For example, accented letters, cyrillic, sanskrit, ...

The general solution is to do this:

Character.UnicodeBlock block = Character.UnicodeBlock.of(someCodePoint);

and then test to see if the block is one of the ones that you are interested in. In some cases you will need to test for multiple blocks. For example, there are (at least) 4 code blocks for Cyrillic characters and 7 for Latin. The Character.UnicodeBlock class defines static constants for well-known blocks; see the javadocs.

Note that any code point will be in at most one block.

I needed my ASP.NET drop down list to take up all available space, and this is all I put in the CSS and it is working in Firefox and IE11:

width: 100%

I had to add the CSS class into the asp:DropDownList element

$content = '';
    for($rowth=0; $rowth<=100; $rowth++){
        $content .= $selenium->getTable("tblReports.{$rowth}.0") . "\n";
        //$content .= $selenium->getTable("tblReports.{$rowth}.1") . "\n";
        $content .= $selenium->getTable("tblReports.{$rowth}.2") . " ";
        $content .= $selenium->getTable("tblReports.{$rowth}.3") . " ";
        $content .= $selenium->getTable("tblReports.{$rowth}.4") . " ";
        $content .= $selenium->getTable("tblReports.{$rowth}.5") . " ";
        $content .= $selenium->getTable("tblReports.{$rowth}.6") . "\n";

    }

Both @property and traditional getters and setters have their advantages. It depends on your use case.

Advantages of @property

• You don't have to change the interface while changing the implementation of data access. When your project is small, you probably want to use direct attribute access to access a class member. For example, let's say you have an object foo of type Foo, which has a member num. Then you can simply get this member with num = foo.num. As your project grows, you may feel like there needs to be some checks or debugs on the simple attribute access. Then you can do that with a @property within the class. The data access interface remains the same so that there is no need to modify client code.

  Cited from PEP-8:

  For simple public data attributes, it is best to expose just the attribute name, without complicated accessor/mutator methods. Keep in mind that Python provides an easy path to future enhancement, should you find that a simple data attribute needs to grow functional behavior. In that case, use properties to hide functional implementation behind simple data attribute access syntax.

• Using @property for data access in Python is regarded as Pythonic:

  • It can strengthen your self-identification as a Python (not Java) programmer.

  • It can help your job interview if your interviewer thinks Java-style getters and setters are anti-patterns.

Advantages of traditional getters and setters

• Traditional getters and setters allow for more complicated data access than simple attribute access. For example, when you are setting a class member, sometimes you need a flag indicating where you would like to force this operation even if something doesn't look perfect. While it is not obvious how to augment a direct member access like foo.num = num, You can easily augment your traditional setter with an additional force parameter:

  def Foo:
      def set_num(self, num, force=False):
          ...
  

• Traditional getters and setters make it explicit that a class member access is through a method. This means:

  • What you get as the result may not be the same as what is exactly stored within that class.

  • Even if the access looks like a simple attribute access, the performance can vary greatly from that.

  Unless your class users expect a @property hiding behind every attribute access statement, making such things explicit can help minimize your class users surprises.

• As mentioned by @NeilenMarais and in this post, extending traditional getters and setters in subclasses is easier than extending properties.

• Traditional getters and setters have been widely used for a long time in different languages. If you have people from different backgrounds in your team, they look more familiar than @property. Also, as your project grows, if you may need to migrate from Python to another language that doesn't have @property, using traditional getters and setters would make the migration smoother.

Caveats

• Neither @property nor traditional getters and setters makes the class member private, even if you use double underscore before its name:

  class Foo:
      def __init__(self):
          self.__num = 0
  
      @property
      def num(self):
          return self.__num
  
      @num.setter
      def num(self, num):
          self.__num = num
  
      def get_num(self):
          return self.__num
  
      def set_num(self, num):
          self.__num = num
  
  foo = Foo()
  print(foo.num)          # output: 0
  print(foo.get_num())    # output: 0
  print(foo._Foo__num)    # output: 0
  

To remove the first and last element of an array is by using the built-in method of an array i.e shift() and pop() the fruits.shift() get the first element of the array as "Banana" while fruits.pop() get the last element of the array as "Mango". so the remaining element of the array will be ["Orange", "Apple"]

Use the CSS property white-space: nowrap and overflow: hidden on your td.

Update

Just saw your comment, not sure what I was thinking, I've done this so many times I forgot how I do it. This is approach that works well in most browsers for me... rather than trying to constrain the td, I use a div inside the td that will handle the overflow instance. This has a nice side effect of being able to add your padding, margins, background colors, etc. to your div rather than trying to style the td.

<html>
<head>
<style>
.hideextra { white-space: nowrap; overflow: hidden; text-overflow:ellipsis; }
</style>
</head>
<body>
<table style="width: 300px">
<tr>
    <td>Column 1</td><td>Column 2</td>
</tr>
<tr>
   <td>
    <div class="hideextra" style="width:200px">
        this is the text in column one which wraps</div></td>
   <td>
    <div class="hideextra" style="width:100px">
        this is the column two test</div></td>
</tr>
</table>
</body>
</html>

As a bonus, IE will place an ellipsis in the case of an overflow using the browser-specific text-overflow:ellipsis style. There is a way to do the same in FireFox automatically too, but I have not tested it myself.

Update 2

I started using this truncation code by Justin Maxwell for several months now which works properly in FireFox too.

.NET is seeing an invalid SSL certificate on the other end of the connection. There is a workaround for it, but obviously not recommended for production code:

// Put this somewhere that is only once - like an initialization method
ServicePointManager.ServerCertificateValidationCallback += new RemoteCertificateValidationCallback(ValidateCertificate);
...

static bool ValidateCertificate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
{
   return true;
}

i use concantenate. works for me.

1. fill j2-j14 with '(appostrophe)
2. enter L2 with formula =concantenate(j2,k2)
3. copy L2 to L3-L14

Use replace with Environment.NewLine

myString = myString.Replace(System.Environment.NewLine, "replacement text"); //add a line terminating ;

As mentioned in other posts, if the string comes from another environment (OS) then you'd need to replace that particular environments implementation of new line control characters.

Another way to solve this issue (I did it on Ubuntu 16.04 but it might also work for windows and other Ubuntu versions):

While going through the installation steps, when you reach the step where you choose which packages to install via check boxes, instead of just pressing next with the default "Tools" checkbox selected also check the box for the version of QT you would like in addition to the "Tools" box. I usually check the first box which is the latest version of QT.

After doing this you should not see the "no valid kits found" issue described in this thread.

Happy Coding.

MariaDB supports System Versioning since 10.3 which is the standard SQL feature that does exactly what you want: it stores history of table records and provides access to it via SELECT queries. MariaDB is an open-development fork of MySQL. You can find more on its System Versioning via this link:

https://mariadb.com/kb/en/library/system-versioned-tables/

No need for all that. Check out pathinfo(), it gives you all the components of your path.

Example from the manual:

$path_parts = pathinfo('/www/htdocs/index.html');

echo $path_parts['dirname'], "\n";
echo $path_parts['basename'], "\n";
echo $path_parts['extension'], "\n";
echo $path_parts['filename'], "\n"; // filename is only since PHP 5.2.0

Output of the code:

/www/htdocs
index.html
html
index

And alternatively you can get only certain parts like:

echo pathinfo('/www/htdocs/index.html', PATHINFO_EXTENSION); // outputs html

I don't think it's possible using the for loop syntax. The only thing I can suggest is to do something like:

Collections.reverse(list);
for (Object o : list) {
  ...
}

... but I wouldn't say this is "cleaner" given that it's going to be less efficient.

Yes. Click on the object (textbox, shape, etc.) to select the object and in the Drawing Tools | Format tab, click on Selection Pane in the Arrange group. From there, you'll see names of objects - you can double click (or press F2) on any name and rename it. By deselecting it, it becomes renamed. You can also get to this from the Home tab -> Drawing group -> Arrange drop-down -> Selection pane or by pressing ALT + F10.

If you use pip version of tensorflow, it means it's already compiled and you are just installing it. Basically you install tensorflow-gpu, but when you download it from repository and trying to build, you should build it with CPU AVX support. If you ignore it, you will get the warning every time when you run on cpu.

df = df.merge(same.drop_duplicates(), on=['col1','col2'], 
               how='left', indicator=True)

df[df['_merge'] == 'left_only'].to_csv('output.csv')

var count = $('.' + myclassname).length;

You can use parsing with double instead of float to get more precision value.

<html>
  <head>
    <title>Example Using Google Complete API</title>   
  </head>
  <body>

<form>
   <input id="geocomplete" type="text" placeholder="Type an address/location"/>
    </form>
   <script src="http://maps.googleapis.com/maps/api/js?sensor=false&amp;libraries=places"></script>
   <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>

  <script src="http://ubilabs.github.io/geocomplete/jquery.geocomplete.js"></script>
  <script>
   $(function(){        
    $("#geocomplete").geocomplete();                           
   });
  </script>
 </body>
</html>

For more information visit this link

On a Mac, I found the output contained the information I was looking for:

$> npm install -g karma
...
...
> [email protected] install /usr/local/share/npm/lib/node_modules/karma/node_modules/socket.io/node_modules/socket.io-client/node_modules/ws
> (node-gyp rebuild 2> builderror.log) || (exit 0)
...
$> ls /usr/local/share/npm/bin
karma nf

After adding /usr/local/share/npm/bin to the export PATH line in my .bash_profile, saving it, and sourceing it, I was able to run

$> karma --help

normally.

layout:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="match_parent" >

  <LinearLayout
      android:id="@+id/layoutTest"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:orientation="vertical"
      >
  </LinearLayout>
</RelativeLayout>

class file:

setContentView(R.layout.layout_dynamic);
layoutTest=(LinearLayout)findViewById(R.id.layoutTest);
TextView textView = new TextView(getApplicationContext());

textView.setText("testDynamic textView");
layoutTest.addView(textView);

I would start with upgrade of CMAKE version.

You can use INCLUDE_DIRECTORIES for header location and LINK_DIRECTORIES + TARGET_LINK_LIBRARIES for libraries

INCLUDE_DIRECTORIES(your/header/dir)
LINK_DIRECTORIES(your/library/dir)
rosbuild_add_executable(kinectueye src/kinect_ueye.cpp)
TARGET_LINK_LIBRARIES(kinectueye lib1 lib2 lib2 ...)

note that lib1 is expanded to liblib1.so (on Linux), so use ln to create appropriate links in case you do not have them

To pass get variables as well use $args:

location / {
    try_files $uri $uri/ /index.php?$args;
}

Updated answer that covers most cases

curl -H "Access-Control-Request-Method: GET" -H "Origin: http://localhost" --head http://www.example.com/

1. Replace http://www.example.com/ with URL you want to test.
2. If response includes Access-Control-Allow-* then your resource supports CORS.

Rationale for alternative answer

I google this question every now and then and the accepted answer is never what I need. First it prints response body which is a lot of text. Adding --head outputs only headers. Second when testing S3 URLs we need to provide additional header -H "Access-Control-Request-Method: GET".

Hope this will save time.

In one line of 6 words:

git checkout --orphan new_root_branch  &&  git commit

In my case (Oracle), it's WHERE REGEXP_LIKE(column, 'regex.*'). See here:

SQL Function

Description

---

REGEXP_LIKE

This function searches a character column for a pattern. Use this function in the WHERE clause of a query to return rows matching the regular expression you specify.

...

REGEXP_REPLACE

This function searches for a pattern in a character column and replaces each occurrence of that pattern with the pattern you specify.

...

REGEXP_INSTR

This function searches a string for a given occurrence of a regular expression pattern. You specify which occurrence you want to find and the start position to search from. This function returns an integer indicating the position in the string where the match is found.

...

REGEXP_SUBSTR

This function returns the actual substring matching the regular expression pattern you specify.

(Of course, REGEXP_LIKE only matches queries containing the search string, so if you want a complete match, you'll have to use '^$' for a beginning (^) and end ($) match, e.g.: '^regex.*$'.)

I ran into this a while ago. I found a good solution was to use the ASCII representation of carriage returns (CODE 13). JavaScript has a handy feature called String.fromCharCode() which generates the string version of an ASCII code, or multiple codes separate by a comma. In my case, I needed to generate a CSV file from a long string and write it to a text area. I needed to be able to cut the text from the text area and save it into notepad. When I tried to use the <br /> method it would not preserve the carriage returns, however, using the fromCharCode method it does retain the returns. See my code below:

h1.innerHTML += "...I would like to insert a carriage return here..." + String.fromCharCode(13);
h1.innerHTML += "Ant the other line here..." + String.fromCharCode(13);
h1.innerHTML += "And so on..." + String.fromCharCode(13);
h1.innerHTML += "This prints hello: " + String.fromCharCode(72,69,76,76,79);

See here for more details on this method: w3Schools-fromCharCode()

See here for ASCII codes: ASCII Codes

"Slicing" is where you assign an object of a derived class to an instance of a base class, thereby losing part of the information - some of it is "sliced" away.

For example,

class A {
   int foo;
};

class B : public A {
   int bar;
};

So an object of type B has two data members, foo and bar.

Then if you were to write this:

B b;

A a = b;

Then the information in b about member bar is lost in a.

on tomcat v.7 (vanilla installation)

in your conf/server.xml add the following bit towards the end of the file, just before the </Host> closing tag:

<Context path="" docBase="app_name">
    <!-- Default set of monitored resources -->
    <WatchedResource>WEB-INF/web.xml</WatchedResource>
</Context>

Note that docBase attribute. It's the important bit. You either make sure you've deployed app_name before you change your root web app, or just copy your unpacked webapp (app_name) into your tomcat's webapps folder. Startup, visit root, see your app_name there!

Try the following:

df[df['Col2'].isnull()]

The answer with screenshots (put the checkbox as in the second pic, then press OK):

It is more flexible to use curl instead of fopen and file_get_content for opening a webpage.

This is the solution for MS Access.

The example table is called tab, with fields id and val.

SELECT (SELECT last(val)
          FROM tab AS temp
          WHERE tab.id >= temp.id AND temp.val IS NOT NULL) AS val2, *
  FROM tab;

as suggested in other posts, probably you don't have any user defined. it's not advisable to manually edit the configuration files. you should use the add-user (.sh or .cmd) utility as explained in https://access.redhat.com/documentation/en-US/JBoss_Enterprise_Application_Platform/6/html/Installation_Guide/chap-Getting_Started_with_JBoss_Enterprise_Application_Platform_6.html#Add_the_Initial_User_for_the_Management_Interfaces

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

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

For example:

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

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

Try using following command. I haven't tried it but I think it should work.

openssl pkcs8 -topk8 -inform PEM -outform DER -in filename -out filename -nocrypt

Just to add, in case anyone else comes across this issue.

On a Mac I had to logout and log back in.

docker logout

docker login 

Then it prompts for username (NOTE: Not email) and password. (Need an account on https://hub.docker.com to pull images down)

Then it worked for me.

You can use flexbox to lay out your items:

#parent {_x000D_
  display: flex;_x000D_
}_x000D_
#narrow {_x000D_
  width: 200px;_x000D_
  background: lightblue;_x000D_
  /* Just so it's visible */_x000D_
}_x000D_
#wide {_x000D_
  flex: 1;_x000D_
  /* Grow to rest of container */_x000D_
  background: lightgreen;_x000D_
  /* Just so it's visible */_x000D_
}

<div id="parent">_x000D_
  <div id="wide">Wide (rest of width)</div>_x000D_
  <div id="narrow">Narrow (200px)</div>_x000D_
</div>

This is basically just scraping the surface of flexbox. Flexbox can do pretty amazing things.

For older browser support, you can use CSS float and a width properties to solve it.

#narrow {_x000D_
  float: right;_x000D_
  width: 200px;_x000D_
  background: lightblue;_x000D_
}_x000D_
#wide {_x000D_
  float: left;_x000D_
  width: calc(100% - 200px);_x000D_
  background: lightgreen;_x000D_
}

<div id="parent">_x000D_
  <div id="wide">Wide (rest of width)</div>_x000D_
  <div id="narrow">Narrow (200px)</div>_x000D_
</div>

With Spring you can also just write the following using AnnotationUtils class. i.e.:

Class<?> clazz = AnnotationUtils.findAnnotationDeclaringClass(Target.class, null);

For more details and all different methods check official docs: https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/core/annotation/AnnotationUtils.html