time-left-ago/src/timeAgo.ts

Provide time left and time ago

import moment, { Moment } from 'moment'

export default function timeAgo(time: string | Date | Moment | null): string {
  if (!time) return ''

  const d = new Date(moment(time).valueOf())

  const cur = new Date()
  const daysAgo = (cur.getTime() - d.getTime()) / 86400000

  if (daysAgo < 1 && d.getDay() === cur.getDay()) {
    return moment(time).format('LT')
  }
  if (daysAgo < 2 && d.getDay() + 1 === cur.getDay()) {
    return 'Yesterday'
  }
  if (daysAgo < 6) {
    return moment(d).format('dddd')
  }
  return moment(d).format('M/D/YY')
}