angular-cn/aio/content/examples/ngcontainer/ts/plnkr.no-link.html

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<html lang="en"><head></head><body><form id="mainForm" method="post" action="http://plnkr.co/edit/?p=preview" target="_self"><input type="hidden" name="files[app/app.component.ts]" value="import { Component } from '@angular/core';
import { heroes } from './hero';
@Component({
moduleId: module.id,
selector: 'my-app',
templateUrl: './app.component.html',
styleUrls: [ './app.component.css' ]
})
export class AppComponent {
heroes = heroes;
hero = this.heroes[0];
heroTraits = [ 'honest', 'brave', 'considerate' ];
// flags for the table
attrDirs = true;
strucDirs = true;
divNgIf = false;
showId = true;
showDefaultTraits = true;
showSad = true;
}
/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/"><input type="hidden" name="files[app/app.module.ts]" value="import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ContentComponent } from './content.component';
import { heroComponents } from './hero.components';
@NgModule({
imports: [ BrowserModule, FormsModule ],
declarations: [
AppComponent,
ContentComponent,
heroComponents
],
bootstrap: [ AppComponent ]
})
export class AppModule { }
/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/"><input type="hidden" name="files[app/content.component.ts]" value="import { Component } from '@angular/core';
@Component({
selector: 'content-comp',
template:
`<div>
<ng-content></ng-content>
</div>`,
styles: [ `
div { border: medium dashed green; padding: 1em; width: 150px; text-align: center}
`]
})
export class ContentComponent { }
/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/"><input type="hidden" name="files[app/hero.components.ts]" value="import { Component, Input } from '@angular/core';
import { Hero } from './hero';
@Component({
selector: 'happy-hero',
template: `Wow. You like {{hero.name}}. What a happy hero ... just like you.`
})
export class HappyHeroComponent {
@Input() hero: Hero;
}
@Component({
selector: 'sad-hero',
template: `You like {{hero.name}}? Such a sad hero. Are you sad too?`
})
export class SadHeroComponent {
@Input() hero: Hero;
}
@Component({
selector: 'confused-hero',
template: `Are you as confused as {{hero.name}}?`
})
export class ConfusedHeroComponent {
@Input() hero: Hero;
}
@Component({
selector: 'unknown-hero',
template: `{{message}}`
})
export class UnknownHeroComponent {
@Input() hero: Hero;
get message() {
return this.hero &amp;&amp; this.hero.name ?
`${this.hero.name} is strange and mysterious.` :
'Are you feeling indecisive?';
}
}
export const heroComponents =
[ HappyHeroComponent, SadHeroComponent, ConfusedHeroComponent, UnknownHeroComponent ];
/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/"><input type="hidden" name="files[app/hero.ts]" value="export class Hero {
id: number;
name: string;
emotion?: string;
}
export const heroes: Hero[] = [
{ id: 1, name: 'Mr. Nice', emotion: 'happy'},
{ id: 2, name: 'Narco', emotion: 'sad' },
{ id: 3, name: 'Windstorm', emotion: 'confused' },
{ id: 4, name: 'Magneta'}
];
/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/"><input type="hidden" name="files[main.ts]" value="import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { AppModule } from './app/app.module';
platformBrowserDynamic().bootstrapModule(AppModule);
/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/"><input type="hidden" name="files[app/app.component.css]" value="button {
min-width: 100px;
font-size: 100%;
}
code, .code {
background-color: #eee;
color: black;
font-family: Courier, sans-serif;
font-size: 85%;
}
div.code {
width: 400px;
}
.heroic {
font-size: 150%;
font-weight: bold;
}
hr {
margin: 40px 0
}
td, th {
text-align: left;
vertical-align: top;
}
p span { color: red; font-size: 70%; }
/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/"><input type="hidden" name="files[styles.css]" value="/* Master Styles */
h1 {
color: #369;
font-family: Arial, Helvetica, sans-serif;
font-size: 250%;
}
h2, h3 {
color: #444;
font-family: Arial, Helvetica, sans-serif;
font-weight: lighter;
}
body {
margin: 2em;
}
body, input[text], button {
color: #888;
font-family: Cambria, Georgia;
}
a {
cursor: pointer;
cursor: hand;
}
button {
font-family: Arial;
background-color: #eee;
border: none;
padding: 5px 10px;
border-radius: 4px;
cursor: pointer;
cursor: hand;
}
button:hover {
background-color: #cfd8dc;
}
button:disabled {
background-color: #eee;
color: #aaa;
cursor: auto;
}
/* Navigation link styles */
nav a {
padding: 5px 10px;
text-decoration: none;
margin-right: 10px;
margin-top: 10px;
display: inline-block;
background-color: #eee;
border-radius: 4px;
}
nav a:visited, a:link {
color: #607D8B;
}
nav a:hover {
color: #039be5;
background-color: #CFD8DC;
}
nav a.active {
color: #039be5;
}
/* items class */
.items {
margin: 0 0 2em 0;
list-style-type: none;
padding: 0;
width: 24em;
}
.items li {
cursor: pointer;
position: relative;
left: 0;
background-color: #EEE;
margin: .5em;
padding: .3em 0;
height: 1.6em;
border-radius: 4px;
}
.items li:hover {
color: #607D8B;
background-color: #DDD;
left: .1em;
}
.items li.selected {
background-color: #CFD8DC;
color: white;
}
.items li.selected:hover {
background-color: #BBD8DC;
}
.items .text {
position: relative;
top: -3px;
}
.items .badge {
display: inline-block;
font-size: small;
color: white;
padding: 0.8em 0.7em 0 0.7em;
background-color: #607D8B;
line-height: 1em;
position: relative;
left: -1px;
top: -4px;
height: 1.8em;
margin-right: .8em;
border-radius: 4px 0 0 4px;
}
/* everywhere else */
* {
font-family: Arial, Helvetica, sans-serif;
}
/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/"><input type="hidden" name="files[app/app.component.html]" value="<h1>&amp;lt;ng-container&amp;gt;</h1>
<div *ngIf=&quot;hero&quot;>{{hero.name}}</div>
<hr>
<h3>&amp;lt;ng-container&amp;gt; and CSS</h3>
<p>Examples demonstrating issues with rigid CSS styles.</p>
<button (click)=&quot;hero = hero ? null : heroes[0]&quot;>Toggle hero</button>
<h4>#1 &amp;lt;ng-container&amp;gt; and &amp;lt;p&amp;gt;</h4>
<p>
I turned the corner
<ng-container *ngIf=&quot;hero&quot;>
and saw {{hero.name}}. I waved
</ng-container>
and continued on my way.
</p>
<p>
I turned the corner
<span *ngIf=&quot;hero&quot;>
and saw {{hero.name}}. I waved
</span>
and continued on my way.
</p>
<h4>#2 &amp;lt;ng-container&amp;gt; and &amp;lt;p&amp;gt;</h4>
<div *ngIf=&quot;hero&quot;>
<p>
{{hero.name}} is
<ng-container *ngFor=&quot;let trait of heroTraits; let first=first; let last=last&quot;>
<ng-container *ngIf=&quot;!first&quot;>,</ng-container>
<ng-container *ngIf=&quot;last&quot;>and</ng-container>
{{trait}}
</ng-container>.
</p>
<p>
{{hero.name}} is
<span *ngFor=&quot;let trait of heroTraits; let first=first; let last=last&quot;>
<span *ngIf=&quot;!first&quot;>,</span>
<span *ngIf=&quot;last&quot;>and</span>
{{trait}}
</span>.
</p>
<br>
<h4>#3 &amp;lt;ng-container&amp;gt; and &amp;lt;p&amp;gt;</h4>
<p>
<label><input type=&quot;checkbox&quot; [checked]=&quot;showId&quot; (change)=&quot;showId=!showId&quot;>Show ID</label>
</p>
<div>
The <code>hero.id</code> in the &amp;lt;span&amp;gt;
is caught by the <span>p-span</span> CSS:
<p>
<span *ngIf=&quot;showId&quot;>
Id: ({{hero.id}})
</span>
Name: {{hero.name}}
</p>
</div>
<div>
The <code>hero.id</code> in the &amp;lt;ng-container&amp;gt;
is unaffected by the <span>p-span</span> CSS:
<p>
<ng-container *ngIf=&quot;showId&quot;>
Id: ({{hero.id}})
</ng-container>
Name: {{hero.name}}
</p>
</div>
<div>
The <code>hero.id</code> in the &amp;lt;template *ngIf&amp;gt; disappears:
<p>
<template *ngIf=&quot;showId&quot;>
Id: ({{hero.id}})
</template>
Name: {{hero.name}}
</p>
</div>
<div>
The <code>hero.id</code> in the &amp;lt;template [ngIf]&amp;gt;
is unaffected by the <span>p-span</span> CSS:
<p>
<template [ngIf]=&quot;showId&quot;>
Id: ({{hero.id}})
</template>
Name: {{hero.name}}
</p>
</div>
</div>
<hr>
<h3>&amp;lt;ng-container&amp;gt; and layout-sensitive elements</h3>
<p>
Examples demonstrating issues with layout-sensitive elements
such as &amp;lt;select&amp;gt; and &amp;lt;table&amp;gt;.
</p>
<h4>#1 &amp;lt;ng-container&amp;gt; and &amp;lt;options&amp;gt;</h4>
<p><i>&amp;lt;select&amp;gt; with &amp;lt;span&amp;gt;</i></p>
<div>
Pick your favorite hero
(<label><input type=&quot;checkbox&quot; checked (change)=&quot;showSad=!showSad&quot;>show sad</label>)
</div>
<select [(ngModel)]=&quot;hero&quot;>
<span *ngFor=&quot;let h of heroes&quot;>
<span *ngIf=&quot;showSad || h?.emotion != 'sad'&quot;>
<option [ngValue]=&quot;h&quot;>{{h.name}} ({{h?.emotion}})</option>
</span>
</span>
</select>
<p><i>&amp;lt;select&amp;gt; with &amp;lt;ng-container&amp;gt;</i></p>
<div>
Pick your favorite hero
(<label><input type=&quot;checkbox&quot; checked (change)=&quot;showSad=!showSad&quot;>show sad</label>)
</div>
<select [(ngModel)]=&quot;hero&quot;>
<ng-container *ngFor=&quot;let h of heroes&quot;>
<ng-container *ngIf=&quot;showSad || h?.emotion != 'sad'&quot;>
<option [ngValue]=&quot;h&quot;>{{h.name}} ({{h?.emotion}})</option>
</ng-container>
</ng-container>
</select>
<br><br><br><br>
<h4>#2 &amp;lt;ng-container&amp;gt; and &amp;lt;options&amp;gt;</h4>
<p>
<label (change)=&quot;traitPicker.value=showDefaultTraits ? 'loyal' : heroTraits[0]&quot;>
<input type=&quot;checkbox&quot;
[checked]=&quot;showDefaultTraits&quot;
(change)=&quot;showDefaultTraits=!showDefaultTraits&quot;>Show default traits
</label>
</p>
<p>Options with &amp;lt;ng-container&amp;gt;</p>
<select #traitPicker>
<ng-container *ngIf=&quot;showDefaultTraits&quot;>
<!-- Default traits -->
<option value=&quot;loyal&quot;>LOYAL</option>
<option value=&quot;clean&quot;>CLEAN</option>
<option value=&quot;reverent&quot;>REVERENT</option>
</ng-container>
<option *ngFor=&quot;let trait of heroTraits&quot; [value]=&quot;trait&quot;>
{{ trait | uppercase }}
</option>
</select>
<p>Options with &amp;lt;span&amp;gt;</p>
<select>
<!-- Default traits are always excluded because intermediate <span> is illegal -->
<span *ngIf=&quot;showDefaultTraits&quot;>
<option value=&quot;loyal&quot;>LOYAL</option>
<option value=&quot;clean&quot;>CLEAN</option>
<option value=&quot;reverent&quot;>REVERENT</option>
</span>
<option *ngFor=&quot;let trait of heroTraits&quot; [value]=&quot;trait&quot;>
{{ trait | uppercase }}
</option>
</select>
<br>
<h4>&amp;lt;ng-container&amp;gt; and &amp;lt;table&amp;gt;</h4>
<p>
<label><input type=&quot;checkbox&quot; checked (change)=&quot;attrDirs=!attrDirs&quot;>Attribute directives</label>
<label><input type=&quot;checkbox&quot; checked (change)=&quot;strucDirs=!strucDirs&quot;>Structural directives</label>
<label><input type=&quot;checkbox&quot; (change)=&quot;divNgIf=!divNgIf&quot;>div with *ngIf</label>
</p>
<table>
<tr>
<th width=&quot;20%&quot;>Directive</th>
<th width=&quot;10%&quot;>Type</th>
<th>Description</th>
</tr>
<tr *ngIf=&quot;attrDirs&quot;>
<td>NgClass</td><td>A</td><td>Add or remove multiple CSS classes.</td>
</tr>
<ng-container *ngIf=&quot;divNgIf&quot;>
<div *ngIf=&quot;strucDirs&quot;>
<tr>
<td>xxx</td><td>S</td><td>div with *ngIf formats crazy.</td>
</tr>
<tr>
<td>yyy</td><td>S</td><td>div with *ngIf formats crazy.</td>
</tr>
</div>
</ng-container>
<ng-container *ngIf=&quot;strucDirs&quot;>
<tr>
<td>NgFor</td><td>S</td><td>Repeat the template for each item in a list.</td>
</tr>
<tr>
<td>NgIf</td><td>S</td><td>Add or remove DOM elements.</td>
</tr>
</ng-container>
<ng-container *ngIf=&quot;attrDirs&quot;>
<tr>
<td>NgStyle</td><td>A</td><td>Add or remove multiple style attributes.</td>
</tr>
</ng-container>
<tr *ngIf=&quot;strucDirs&quot;>
<td>NgSwitch</td><td>S</td><td>Include in DOM if case matches the switch value.</td>
</tr>
</table>
<hr>
<h3>Do not confuse &amp;lt;ng-container&amp;gt; with &amp;lt;ng-content&amp;gt;</h3>
<p>&amp;lt;ng-container&amp;gt;Inside ng-container&amp;lt;/ng-container&amp;gt;</p>
<ng-container>Inside ng-container</ng-container>
<p>&amp;lt;ng-content&amp;gt;this is an Angular parse error&amp;lt;/ng-content&amp;gt;</p>
<!-- <ng-content>this is an Angular parse error</ng-content> -->
<div class=&quot;code&quot;>Template parse errors:<br>
&amp;lt;ng-content&amp;gt; element cannot have content.</div>
<p>Demo of &amp;lt;/ng-content&amp;gt;</p>
<content-comp>
Projected content
</content-comp>
<!--
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
-->"><input type="hidden" name="files[index.html]" value="<!DOCTYPE html>
<html>
<head>
<title>Angular &amp;lt;ng-container&amp;gt;</title>
<meta charset=&quot;UTF-8&quot;>
<meta name=&quot;viewport&quot; content=&quot;width=device-width, initial-scale=1&quot;>
<link rel=&quot;stylesheet&quot; href=&quot;styles.css&quot;>
<!-- Polyfills -->
<script src=&quot;https://unpkg.com/core-js/client/shim.min.js&quot;></script>
<script src=&quot;https://unpkg.com/zone.js@0.7.4?main=browser&quot;></script>
<script src=&quot;https://unpkg.com/systemjs@0.19.39/dist/system.src.js&quot;></script>
<script src=&quot;https://cdn.rawgit.com/angular/angular.io/b3c65a9/public/docs/_examples/_boilerplate/systemjs.config.web.js&quot;></script>
<script>
System.import('main.js').catch(function(err){ console.error(err); });
</script>
</head>
<body>
<my-app>Loading...</my-apps>
</body>
</html>
<!--
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
-->"><input type="hidden" name="tags[0]" value="angular"><input type="hidden" name="tags[1]" value="example"><input type="hidden" name="tags[2]" value="ngcontainer"><input type="hidden" name="tags[3]" value="structural"><input type="hidden" name="tags[4]" value="directives"><input type="hidden" name="private" value="true"><input type="hidden" name="description" value="Angular Example - <ng-container>"></form><script>document.getElementById("mainForm").submit();</script></body></html>