Basic counter in Angular 2.
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angular 2 basic counter - 1
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| System.config({ | |
| //use typescript for compilation | |
| transpiler: 'typescript', | |
| //typescript compiler options | |
| typescriptOptions: { | |
| emitDecoratorMetadata: true | |
| }, | |
| //map tells the System loader where to look for things | |
| map: { | |
| app: './src' | |
| }, | |
| //packages defines our app package | |
| packages: { | |
| app: { | |
| main: './counter.ts', | |
| defaultExtension: 'ts' | |
| } | |
| } | |
| }); |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>angular 2 basic counter</title> | |
| <link rel="stylesheet" href="style.css" /> | |
| <script src="https://code.angularjs.org/2.0.0-beta.11/angular2-polyfills.js"></script> | |
| <script src="https://code.angularjs.org/tools/system.js"></script> | |
| <script src="https://code.angularjs.org/tools/typescript.js"></script> | |
| <script src="config.js"></script> | |
| <script src="https://code.angularjs.org/2.0.0-beta.11/Rx.js"></script> | |
| <script src="https://code.angularjs.org/2.0.0-beta.11/angular2.dev.js"></script> | |
| <script src="https://code.angularjs.org/2.0.0-beta.11/http.dev.js"></script> | |
| <script src="https://code.angularjs.org/2.0.0-beta.11/router.dev.js"></script> | |
| <script> | |
| System.import('app') | |
| .catch(console.error.bind(console)); | |
| </script> | |
| </head> | |
| <body> | |
| <app></app> | |
| </body> | |
| </html> |
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| import {Component} from 'angular2/core'; | |
| import {bootstrap} from 'angular2/platform/browser'; | |
| @Component({ | |
| selector: 'app', | |
| template: ` | |
| <button (click)="increment()">Increment</button> | |
| <button (click)="decrement()">Decrement</button> | |
| <div></div> | |
| {{counter}} | |
| ` | |
| }) | |
| export class App { | |
| public counter : number = 0; | |
| increment(){ | |
| this.counter += 1; | |
| } | |
| decrement(){ | |
| this.counter -= 1; | |
| } | |
| } | |
| bootstrap(App, []); |
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