js number comma

example.js

{
  const n = 11111111111111;
  console.log(n.toLocaleString());
  // 11,111,111,111,111

  // console.log(navigator.languages);
}

{
  const n = 11111111111111;
  const nuberWithCommas = n.toLocaleString('ko-KR');
  console.log(nuberWithCommas);
  // 11,111,111,111,111
}

참고

• https://stackoverflow.com/questions/2901102/how-to-print-a-number-with-commas-as-thousands-separators-in-javascript
• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString