<!DOCTYPE html>
<html>
<head>
<base href="." />
<title>angular playground</title>
<link rel="stylesheet" href="style.css" />
<script src="https://unpkg.com/zone.js/dist/zone.js"></script>
<script src="https://unpkg.com/zone.js/dist/long-stack-trace-zone.js"></script>
<script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script>
<script src="https://unpkg.com/systemjs@0.19.31/dist/system.js"></script>
<script src="config.js"></script>
<script>
System.import('app')
.catch(console.error.bind(console));
</script>
</head>
<body>
<div>This example is a part of the tutorial - <a href="https://angularbytes.witspry.com/2017/09/angular-5-builtin-async-and-custom-pipes.html">
https://angularbytes.witspry.com/2017/09/angular-5-builtin-async-and-custom-pipes.html</a> </div>
<div style="margin-bottom:20px;"></div>
<div style="text-align:center;border-bottom-style:solid;"></div>
<div style="margin-bottom:20px;"></div>
<my-app>
loading...
</my-app>
</body>
</html>
/* Styles go here */
### Angular Starter Plunker - Typescript
var angularVersion = '@5.0.0';
System.config({
//use typescript for compilation
transpiler: 'typescript',
//typescript compiler options
typescriptOptions: {
emitDecoratorMetadata: true
},
paths: {
'npm:': 'https://unpkg.com/'
},
//map tells the System loader where to look for things
map: {
'app': './src',
'@angular/core': 'npm:@angular/core'+ angularVersion + '/bundles/core.umd.js',
'@angular/common': 'npm:@angular/common' + angularVersion + '/bundles/common.umd.js',
'@angular/common/http': 'npm:@angular/common' + angularVersion + '/bundles/common-http.umd.js',
'@angular/compiler': 'npm:@angular/compiler' + angularVersion + '/bundles/compiler.umd.js',
'@angular/platform-browser': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser.umd.js',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic' + angularVersion + '/bundles/platform-browser-dynamic.umd.js',
'@angular/http': 'npm:@angular/http' + angularVersion + '/bundles/http.umd.js',
'@angular/router': 'npm:@angular/router' + angularVersion +'/bundles/router.umd.js',
'@angular/forms': 'npm:@angular/forms' + angularVersion + '/bundles/forms.umd.js',
'@angular/animations': 'npm:@angular/animations' + angularVersion + '/bundles/animations.umd.js',
'@angular/platform-browser/animations': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser-animations.umd.js',
'@angular/animations/browser': 'npm:@angular/animations' + angularVersion + '/bundles/animations-browser.umd.js',
'@angular/core/testing': 'npm:@angular/core' + angularVersion + '/bundles/core-testing.umd.js',
'@angular/common/testing': 'npm:@angular/common' + angularVersion + '/bundles/common-testing.umd.js',
'@angular/common/http/testing': 'npm:@angular/common' + angularVersion + '/bundles/common-http-testing.umd.js',
'@angular/compiler/testing': 'npm:@angular/compiler' + angularVersion + '/bundles/compiler-testing.umd.js',
'@angular/platform-browser/testing': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser-testing.umd.js',
'@angular/platform-browser-dynamic/testing': 'npm:@angular/platform-browser-dynamic' + angularVersion + '/bundles/platform-browser-dynamic-testing.umd.js',
'@angular/http/testing': 'npm:@angular/http' + angularVersion + '/bundles/http-testing.umd.js',
'@angular/router/testing': 'npm:@angular/router' + angularVersion + '/bundles/router-testing.umd.js',
'tslib': 'npm:tslib@1.6.1',
'rxjs': 'npm:rxjs@5.0.0',
'typescript': 'npm:typescript@2.2.1/lib/typescript.js'
},
//packages defines our app package
packages: {
app: {
main: './main.ts',
defaultExtension: 'ts'
},
rxjs: {
main: 'index.js',
map:{
'./operators' : './operators/index.js'
},
defaultExtension: ''
}
}
});
//main entry point
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {AppModule} from './app';
platformBrowserDynamic().bootstrapModule(AppModule)
//our root app component
import {Component, NgModule} from '@angular/core'
import {BrowserModule} from '@angular/platform-browser'
import {BuiltInPipe} from './builtin_pipes'
import {AsyncPipe} from './async_pipes'
import {CustomPipe} from './custom_pipes'
@Component({
selector: 'my-app',
template: `
<div>
<b>Built-in Pipes :</b>
<person></person>
------------------------------------------
<br />
<b>Async Pipes :</b>
<person-async></person-async>
<br />
------------------------------------------
<br />
<b>Custom Pipes :</b>
<br />
<p>
You owe {{500 | appendUSD}}
</p>
</div>
`,
})
export class App {
name:string;
constructor() {
this.name = 'Angular2'
}
}
@NgModule({
imports: [ BrowserModule ],
declarations: [ App, BuiltInPipe, AsyncPipe, CustomPipe ],
bootstrap: [ App ]
})
export class AppModule {}
import { Component } from '@angular/core';
@Component({
selector: 'person',
template: `<p>The {{name}}'s birthday is {{ birthday | date }}</p>`
})
export class BuiltInPipe {
name = 'Alex';
birthday = new Date(1987, 1, 10); // April 15, 1988
}
import { Component } from '@angular/core';
import { Observable } from 'rxjs/Rx';
@Component({
selector: 'person-async',
template: `
<p>Comment: {{ comment$ | async }}</p>
<button (click)="getComment()">Get Comment</button>`,
})
export class AsyncPipe {
comment$: Observable<string>;
private comments = [
'Comment 1',
'Comment 2',
'Comment 3'
];
constructor() { this.getComment(); }
getComment() {
this.comment$ = Observable.interval(500)
.map(i => this.comments[i])
.take(this.comments.length);
}
}
// Alternative message$ formula:
// this.message$ = Observable.fromArray(this.messages)
// .map(message => Observable.timer(500).map(() => message))
// .concatAll();
/*
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
*/
import { Pipe, PipeTransform } from '@angular/core';
@Pipe({ name: 'appendUSD' })
export class CustomPipe implements PipeTransform {
transform(amount: string) {
return amount + ' USD';
}
}