Angular 2 “time ago” pipe

Question

I am trying to create a \'time ago\' pipe for my Angular 2 application.

It should transform a date to a string such as \'5 minutes ago\' or \'60 seconds ago\'. It wo

Answer 1

The accepted answer can not work with angular 7+.

I followed this answer and customize for Vietnamese.

https://stackoverflow.com/a/61341940/4964569

I share for whom concern.

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

    @Pipe({
        name: 'dateAgo',
        pure: true
    })
    export class TimePipe implements PipeTransform {
    
        transform(value: any, args?: any): any {
            if (value) {
                const seconds = Math.floor((+new Date() - +new Date(value)) / 1000);
                if (seconds < 29) // less than 30 seconds ago will show as 'Just now'
                    return 'vừa mới đăng';
                const intervals = {
                    'năm': 31536000,
                    'tháng': 2592000,
                    'tuần': 604800,
                    'ngày': 86400,
                    'giờ': 3600,
                    'phút': 60,
                    'giây': 1
                };
                let counter;
                for (const i in intervals) {
                    counter = Math.floor(seconds / intervals[i]);
                    if (counter > 0){
                      return counter + ' ' + i + ' trước'; // singular (1 day ago)
                    }
                }
            }
            return value;
        }
    }