convert date to now, 12m, 1h, 1d, 1w, 1m, 1y in javascript

npm install moment
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index.tsx
const moment = require('moment');

function formatDate(date) {
  // get the difference in seconds between the date and now
  const diff = moment().diff(date, 'seconds');

  if (diff < 60) {
    return 'now';
  } else if (diff < 3600) {
    return moment.duration(diff, 'seconds').minutes() + 'm';
  } else if (diff < 86400) {
    return moment.duration(diff, 'seconds').hours() + 'h';
  } else if (diff < 604800) {
    return moment.duration(diff, 'seconds').days() + 'd';
  } else if (diff < 2419200) {
    return moment.duration(diff, 'seconds').weeks() + 'w';
  } else if (diff < 29030400) {
    return moment.duration(diff, 'seconds').months() + 'm';
  } else {
    return moment.duration(diff, 'seconds').years() + 'y';
  }
}

const date = new Date('2021-08-24T12:00:00Z');
console.log(formatDate(date)); // output: now (if run within a minute), 1h, 9d, etc.
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