angular-docs-cn/modules/@angular/examples/common/pipes/ts/number_pipe.ts

/**
 * @license
 * Copyright 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 https://angular.io/license
 */

import {Component} from '@angular/core';

// #docregion NumberPipe
@Component({
  selector: 'number-pipe',
  template: `<div>
    <p>e (no formatting): {{e}}</p>
    <p>e (3.1-5): {{e | number:'3.1-5'}}</p>
    <p>pi (no formatting): {{pi}}</p>
    <p>pi (3.5-5): {{pi | number:'3.5-5'}}</p>
  </div>`
})
export class NumberPipeComponent {
  pi: number = 3.141592;
  e: number = 2.718281828459045;
}
// #enddocregion

// #docregion PercentPipe
@Component({
  selector: 'percent-pipe',
  template: `<div>
    <p>A: {{a | percent}}</p>
    <p>B: {{b | percent:'4.3-5'}}</p>
  </div>`
})
export class PercentPipeComponent {
  a: number = 0.259;
  b: number = 1.3495;
}
// #enddocregion

// #docregion CurrencyPipe
@Component({
  selector: 'currency-pipe',
  template: `<div>
    <p>A: {{a | currency:'USD':false}}</p>
    <p>B: {{b | currency:'USD':true:'4.2-2'}}</p>
  </div>`
})
export class CurrencyPipeComponent {
  a: number = 0.259;
  b: number = 1.3495;
}
// #enddocregion