add comma number javascript code example

Example 1: format money javascript commas

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

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

Example 2: how to format an integer with a comma in javascript

x.toString().toLocaleString(); // x must be a number