import { Pipe, PipeTransform } from '@angular/core'; import * as moment from 'moment'; @Pipe({ name: 'timeago', // WARNING: If this is not set to false, values won't update unless the Object // or Array reference changes: https://stackoverflow.com/questions/34456430/ // ngfor-doesnt-update-data-with-pipe-in-angular2 }) export class TimeAgoPipe implements PipeTransform { transform(datetime: number): string { return moment(datetime).fromNow(); } }