how to add comma in number in javascript code example

Example 1: number with commas js

function numberWithCommas(x) {
  return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',');
}

Example 2: format money javascript commas

function formatMoney(n) {
    return "$ " + (Math.round(n * 100) / 100).toLocaleString();
}

n = 2123000;
// =>2,123,000

Example 3: add comma to number javascript

var n = 34523453.345
n.toLocaleString()
"34,523,453.345"

Example 4: add comma to number in javascript

value.toLocaleString()
"1,000"