Can jQuery add commas while user typing numbers?

Question

How would I go about dynamically adding commas as a user is entering numbers? Is there a good number formatter that would help? I have to add these numbers later so I eventu

Answer 1

Here's an implementation of @maček's answer in vanilla JS if you don't want to use jQuery:

var el = document.querySelector('input.number');
el.addEventListener('keyup', function (event) {
  if (event.which >= 37 && event.which <= 40) return;

  this.value = this.value.replace(/\D/g, '')
                         .replace(/\B(?=(\d{3})+(?!\d))/g, ',');
});