It means what it says. You can’t use `--out`/`--outFile` to bundle modules together for Node.js/CommonJS, since there is no bundle format for CommonJS. Simply don’t use that option for CommonJS and corresponding JS files will be emitted for each input TS module file.

In Angular 2, I have a component that has a child component. However, I want to acquire a copy of that child component to use in the parent, to call its functions or whatever.

I found out that I could use local variables, and that way I will be able to use the component in the template. However, I don&#39;t to only use it in the template, I want to use it in the actual code of the component.

I found a way to do that, here is the child code:

    //our child
    import {Component, OnInit, EventEmitter} from &#39;angular2/core&#39;
    
    @Component({
      selector: &#39;my-child&#39;,
      providers: [],
      template: `
        &lt;div&gt;
          &lt;h2&gt;Child&lt;/h2&gt;
          
        &lt;/div&gt;
      `,
      directives: [],
      outputs: [&#39;onInitialized&#39;]
    })
    
    export class Child implements OnInit{
      
      onInitialized = new EventEmitter&lt;Child&gt;();
      
      constructor() {
        this.name = &#39;Angular2&#39;
      }
      
      ngOnInit() {
        this.onInitialized.emit(this);
      }
    }

Parent:

    //our root app component
    import {Component} from &#39;angular2/core&#39;
    import {Child} from &#39;./child&#39;
    
    @Component({
      selector: &#39;my-app&#39;,
      providers: [],
      template: `
        &lt;div&gt;
          &lt;h2&gt;Hello {{name}}&lt;/h2&gt;
          &lt;my-child (onInitialized)=&quot;func($event)&quot;&gt;&lt;/my-child&gt;
        &lt;/div&gt;
      `,
      directives: [Child]
    })
    export class App {
      constructor() {
        this.name = &#39;Angular2&#39;
      }
      
      func(e) {
        console.log(e)
        
      }
    }

I implemented it here in [this plunker][1]. But it seems like a hack.

Isn&#39;t there a simpler way to attach the component to a variable in its parent?


  [1]: http://plnkr.co/edit/e3pEn9Hd54q1mijNGDpR?p=preview

Getting reference to child component in parent component

How can I disable a `&lt;Link&gt;` in react-router, if its URL already active? E.g. if my URL wouldn&#39;t change on a click on `&lt;Link&gt;` I want to prevent clicking at all or render a `&lt;span&gt;` instead of a `&lt;Link&gt;`.

The only solution which comes to my mind is using `activeClassName` (or `activeStyle `) and setting `pointer-events: none;`, but I&#39;d rather like to use a solution which works in IE9 and IE10.

react-router: How to disable a &lt;Link&gt;, if its active?

When building typescript in VSCode, I get the following error:

&gt; error TS6082: Only &#39;amd&#39; and &#39;system&#39; modules are supported alongside
&gt; --out.

My settings are as follows:

**tsconfig.json**

    {
    	&quot;compilerOptions&quot;: {
    		&quot;target&quot;: &quot;ES5&quot;,
    		&quot;module&quot;: &quot;commonjs&quot;,
            &quot;out&quot;: &quot;current/game.js&quot;,
            &quot;removeComments&quot;: true,
    		&quot;sourceMap&quot;: false
    	}
    }

**.vscode/tasks.json:**

    {
    	&quot;version&quot;: &quot;0.1.0&quot;,
    
    	// The command is tsc. Assumes that tsc has been installed using npm install -g typescript
    	&quot;command&quot;: &quot;tsc&quot;,
    
    	// The command is a shell script
    	&quot;isShellCommand&quot;: true,
    
    	// Show the output window only if unrecognized errors occur.
    	&quot;showOutput&quot;: &quot;silent&quot;,
    
    	// args is the HelloWorld program to compile.
    	&quot;args&quot;: [],
    
    	// use the standard tsc problem matcher to find compile problems
    	// in the output.
    	&quot;problemMatcher&quot;: &quot;$tsc&quot;
    }

Despite the error, the game.js file does get created and runs properly.

Anyone have any thoughts about what might cause this error?

Only &#39;amd&#39; and &#39;system&#39; modules are supported alongside --out

When building typescript in VSCode, I get the following error:
> error TS6082: Only 'amd' and 'system' modules are supported alongside
> --out.
My settings are as follows:
tsconfig.json
<pre><code class="hljs language-json">{
	"compilerOptions": {
		"target": "ES5",
		"module": "commonjs",
 "out": "current/game.js",
 "removeComments": true,
		"sourceMap": false
	}
}
</code></pre>
.vscode/tasks.json:
<pre><code class="hljs language-kotlin">{
	"version": "0.1.0",

	// The command is tsc. Assumes that tsc has been installed using npm install -g typescript
	"command": "tsc",

	// The command is a shell script
	"isShellCommand": true,

	// Show the output window only if unrecognized errors occur.
	"showOutput": "silent",

	// args is the HelloWorld program to compile.
	"args": [],

	// use the standard tsc problem matcher to find compile problems
	// in the output.
	"problemMatcher": "$tsc"
}
</code></pre>
Despite the error, the game.js file does get created and runs properly.
Anyone have any thoughts about what might cause this error?

If I have the following button in an html file

&lt;!-- language: lang-html --&gt;

    &lt;button (click)=&quot;doSomething(&#39;testing&#39;, $event)&quot;&gt;Do something&lt;/button&gt;
Also, in the corresponding component, I have this function

    doSomething(testString: string, event){
    	event.stopPropagation();
    	console.log(testString + &#39;: I am doing something&#39;);
    }

Is there a proper type that should be assigned to the `$event` input?
The event parameter itself is an object, BUT if I assign it to a type object, I get an error

&gt; Property &#39;stopPropogation&#39; does not exist on type object

So, what does Typescript consider the `$event` input?

What Typescript type is Angular2 event

How do you test a private function in angular 2 ?

    class FooBar {
    
        private _status: number;
    
        constructor( private foo : Bar ) {
            this.initFooBar();
            
        }
    
        private initFooBar(){
            this.foo.bar( &quot;data&quot; );
            this._status = this.fooo.foo();
        }

        public get status(){
            return this._status;
        }
    
    }

The solution I found 

1. Put the test code itself inside the closure or Add code inside the closure that stores references to the local variables on existing objects in the outer scope. 
   
   Later strip out the test code using a tool.
   http://philipwalton.com/articles/how-to-unit-test-private-functions-in-javascript/



Please suggest me a better way to solve this problem if you have done any?

P.S 

1. Most of the answer for similar type of question like this one doesn&#39;t give a solution to problem, that&#39;s why I&#39;m asking this question

2. Most of the developer say you Don’t test private functions but I don&#39;t say they are wrong or right, but there are necessities for my case to test private.

How to write unit testing for Angular / TypeScript for private methods with Jasmine

Suppose I have a pure abstract class (that is, an abstract class without any implementation):

    abstract class A {
        abstract m(): void;
    }

Like in C# and Java, I can **extend** the abstract class:

    class B extends A {
        m(): void { }
    }

But *unlike* in C# and Java, I can also **implement** the abstract class:

    class C implements A {
        m(): void { }
    }

How do classes `B` and `C` behave differently? Why would I choose one versus the other?

(Currently, the TypeScript [handbook](http://www.typescriptlang.org/Handbook) and [language specification](https://github.com/Microsoft/TypeScript/blob/master/doc/spec.md) don&#39;t cover abstract classes.)

Extending vs. implementing a pure abstract class in TypeScript

I have looked everywhere and I still have issue debugging TypeScript inside VS Code. I have read [this][1] thread but still I am not able to hit my breakpoints placed inside a TypeScript file, hitting the breakpoints in .js files all works fine.

So here is the simplest &quot;hello world&quot; project I have set up.

 - app.ts:

        var message: string = &quot;Hello World&quot;;

        console.log(message);

 - tsconfig.json

        {
            &quot;compilerOptions&quot;: {
                &quot;target&quot;: &quot;es5&quot;,
                &quot;sourceMap&quot;: true
            }
        }

 - launch.json

        {
	        &quot;version&quot;: &quot;0.2.0&quot;,
	        &quot;configurations&quot;: [
		        {
			        &quot;name&quot;: &quot;Launch&quot;,
			        &quot;type&quot;: &quot;node&quot;,
			        &quot;request&quot;: &quot;launch&quot;,
			        &quot;program&quot;: &quot;${workspaceRoot}/app.js&quot;,
			        &quot;stopOnEntry&quot;: false,
			        &quot;args&quot;: [],
			        &quot;cwd&quot;: &quot;${workspaceRoot}&quot;,
			        &quot;preLaunchTask&quot;: null,
			        &quot;runtimeExecutable&quot;: null,
			        &quot;runtimeArgs&quot;: [
				        &quot;--nolazy&quot;
			        ],
			        &quot;env&quot;: {
				        &quot;NODE_ENV&quot;: &quot;development&quot;
			        },
			        &quot;externalConsole&quot;: false,
			        &quot;sourceMaps&quot;: true,
			        &quot;outDir&quot;: null
		        }
	        ]
        }

I have generated the js.map files by running the `tsc --sourcemap app.ts` command.

After all of those steps when I set a breakpoint on the `console.log(message);` row and launch the program (F5) from the &quot;Debug&quot; tab that breakpoint is grayed out saying &quot;Breakpoint ignored because generated code not found (source map problem?).&quot; I attached a screenshot of what I am observing: 

[![enter image description here][2]][2]

What am I missing? 

Edit:

Hi, I am still stuck on this. I managed to make one sample project that was hitting the break points but after I tried to copy that project to a different location on my HDD the break points again became gray and were not hit. What I did different in this test project was to use inline sourcemaps by compiling the TypeScript files with `tsc app.ts --inlinesourcemap`

I uploaded the mentioned sample project to GitHub so you can take a look at it [here][3].


  [1]: https://stackoverflow.com/questions/31169259/how-to-debug-typescript-files-in-visual-studio-code
  [2]: http://i.stack.imgur.com/dTkNY.jpg
  [3]: https://github.com/VladimirAmiorkov/TypeScriptVSCodeDebugTest

VS Code: &quot;Breakpoint ignored because generated code not found&quot; error

I have the following function:

    function test(): number {
        return 42;
    }

I can obtain the type of the function by using `typeof`:

    type t = typeof test;

Here, `t` will be `() =&gt; number`.

Is there a way to obtain the return type of the function? I would like `t` to be `number` instead of `() =&gt; number`.

Obtaining the return type of a function

To configure Visual Studio Code to debug C# scripts on OSX, I followed through all the steps listed in the article below: 

[Debugging C# on OSX with Visual Studio Code](http://blog.nwoolls.com/2015/05/29/debugging-c-on-os-x-with-visual-studio-code/)

When I tried to debug the sample C# script, Visual Studio Code reported this error:

&gt; Could not find the preLaunch task &#39;build&#39;

As a consequence, I could not inspect the variables defined in the script.

This is a copy of the **launch.json** file:

    {
    	&quot;version&quot;: &quot;0.2.0&quot;,
    	&quot;configurations&quot;: [
    		{
    			&quot;name&quot;: &quot;Launch console application&quot;,
    			&quot;type&quot;: &quot;mono&quot;,
    			&quot;request&quot;: &quot;launch&quot;,
    			&quot;preLaunchTask&quot;: &quot;build&quot;,
    			&quot;program&quot;: &quot;${workspaceRoot}/Program.exe&quot;,
    			&quot;args&quot;: [],
    			&quot;cwd&quot;: &quot;${workspaceRoot}&quot;,
    			&quot;stopAtEntry&quot;: false
    		}
        ]
    }

This is a copy of the **tasks.json** file:

    {
        &quot;version&quot;: &quot;0.1.0&quot;,
        &quot;command&quot;: &quot;mcs&quot;,
        &quot;args&quot;: [
            &quot;-debug&quot;,
            &quot;Program.cs&quot;
        ],  
        &quot;showOutput&quot;: &quot;silent&quot;,
        &quot;taskSelector&quot;: &quot;/t:&quot;,
        &quot;tasks&quot;: [
            {
                &quot;taskName&quot;: &quot;exe&quot;,
                &quot;isBuildCommand&quot;: true,
                &quot;problemMatcher&quot;: &quot;$msCompile&quot;
            }
        ]
    }

How do I resolve this?



Could not find the preLaunch task &#39;build&#39;

I&#39;m looking for a &quot;select each occurrence of&quot; something I&#39;m trying to find. For example a file has a bunch of text that includes &quot;abc&quot;, I type &lt;kbd&gt;ctrl&lt;/kbd&gt;+&lt;kbd&gt;f&lt;/kbd&gt; and type `abc`. I can either find the first one or the next one, but I would like to &quot;multi-cursor&quot; each one in the file.&lt;br&gt;&lt;br&gt;
I&#39;ve already found the feature that lets me highlight text and &lt;kbd&gt;ctrl&lt;/kbd&gt;+&lt;kbd&gt;d&lt;/kbd&gt; to get the next that matches the selection, but if there&#39;s a hundred of these things - well that gets quite tiresome.

Visual Studio Code: Select each occurrence of find

How do I change the font size for the file explorer in Visual Studio Code?  There is not an option in the settings.json file.

Visual Studio Code change font size for file explorer tray?

It&#39;s a simple thing and I was pretty sure it&#39;s well described, but surprisingly it is not so obvious.



[Here][1] I&#39;ve found a detailed description of settings file. As it states it should be `setting.json` file located `%APPDATA%\Code\User\settings.json`, but in my case it&#39;s not there.

Can someone give me some help with restoring default settings in Visual Studio Code? I&#39;ve hidden menu bar by accident and I can&#39;t find no way to show it back.




  [1]: https://code.visualstudio.com/Docs/customization/userandworkspace

How to reset settings in Visual Studio Code?

All:

One of my school project is to make a realtime multiplayers webpage game, I am currently having difficulty to decide if I should go Pixi.js or Phaser for the game graphic and control, could anyone talk a little bit about what they are good at and better that each other?


Thanks

Content Type	Original Author	Original Content on Stackoverflow
Question	OCDev	View Question on Stackoverflow
Solution 1 - Typescript	C Snover	View Answer on Stackoverflow

Only 'amd' and 'system' modules are supported alongside --out

Typescript Problem Overview

Typescript Solutions

Solution 1 - Typescript

react-router: How to disable a <Link>, if its active?

Getting reference to child component in parent component

Attributions