angular best way to localize web code example

Example 1: i18n angular

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      function plural(n: number): number {
  let i = Math.floor(Math.abs(n)), v = n.toString().replace(/^[^.]*\.?/, '').length;
  if (i === 1 && v === 0) return 1;
  return 5;
}

Example 2: i18n angular

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      <span i18n>Updated: {minutes, plural,
  =0 {just now}
  =1 {one minute ago}
  other {{{minutes}} minutes ago by {gender, select, male {male} female {female} other {other}}}}
</span>