Can jQuery add commas while user typing numbers?
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 eventually have to remove the commas down the line. But the screen needs to show the commas for better readability.
Run the code snippet to see it work
$('input.number').keyup(function(event) {
// skip for arrow keys
if(event.which >= 37 && event.which <= 40) return;
// format number
$(this).val(function(index, value) {
return value
.replace(/\D/g, "")
.replace(/\B(?=(\d{3})+(?!\d))/g, ",")
;
});
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
<input class="number">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, ',');
});<input class="number">