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Directives and Pipes in Angular

Solution: Pipes and Observables

Explore how to use Angular's AsyncPipe with the NgIf directive to manage Observables and display asynchronous user data. Learn to combine built-in and custom pipes to transform and present data efficiently within your application templates.

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Solution

Here’s the solution to the asynchronous pipes and observables task:

import { Pipe, PipeTransform } from '@angular/core';
import { Account } from '../user';

@Pipe({
  name: 'accountType'
})
export class AccountTypePipe implements PipeTransform {

  transform(account: Account): string {
    if (account === Account.Premium) return "Premium account";
    if (account === Account.Standard) return "Standard account";
    if (account === Account.Trial) return "Account on Trial";

    return '';
  }

}
The task's solution

Explanation

To get user data from Observable, we ...