angular/packages/examples/common/pipes/ts/keyvalue_pipe.ts

/**
 * @license
 * Copyright Google LLC 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.dev/license
 */

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

// #docregion KeyValuePipe
@Component({
  selector: 'keyvalue-pipe',
  imports: [KeyValuePipe],
  template: ` <span>
    <p>Object</p>
    @for (item of object | keyvalue; track item.key) {
      <div>{{ item.key }}:{{ item.value }}</div>
    }
    <p>Map</p>
    @for (item of map | keyvalue; track item.key) {
      <div>{{ item.key }}:{{ item.value }}</div>
    }
    <p>Natural order</p>
    @for (item of map | keyvalue: null; track item.key) {
      <div>{{ item.key }}:{{ item.value }}</div>
    }
  </span>`,
})
export class KeyValuePipeComponent {
  object: {[key: number]: string} = {2: 'foo', 1: 'bar'};
  map = new Map([
    [2, 'foo'],
    [1, 'bar'],
  ]);
}
// #enddocregion