JSFiddle - React, Tailwind, and code Playground

by Sumit Patel

HTML

<form>
<input class="Amount" type="Amount" />
</form>

JavaScript

$(document).on('keyup', '.Amount', function() {
    var x = $(this).val();
    $(this).val(x.toString().replace(/,/g, "").replace(/\B(?=(\d{3})+(?!\d))/g, ","));
});