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- import { Component } from '@angular/core';
- import { SharedData } from '../shared-data';
- @Component({
- selector: 'app-sidebar',
- template: `
- Item count: <span>{{ getItemCount() | async }}</span>
- `
- })
- export class SidebarComponent {
- constructor(private sharedData: SharedData) { }
- getItemCount() {
- return this.sharedData.value.map(d => d.items.length);
- }
- }
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