How to add thousand separator to input field

				
					



<input class="inputClasssample">

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<script>

$( document ).ready(function() {
    
    inputfield = $(".inputClasssample");
        var n = parseInt(inputfield.val().replace(/\D/g,''),10);
    inputfield.val(n.toLocaleString());
    
inputfield.on('keyup', function(){
    var n = parseInt($(this).val().replace(/\D/g,''),10);
    $(this).val(n.toLocaleString());
});
    
    
});
    

</script>