allow only numbers in textbox jquery

I am going to share the code sample for how to allow only numbers in the textbox field using jQuery.

Table of Content

1. HTML code sample
2. jQuery code sample

In the 1st step, we write HTML code for text-box where i can apply to onkeypress event and call to JavaScript method.

HTML :

<input type="text" id="txtFilter" onkeypress="return isNumberFilter(keyEvent)"/>

jQuery :

In the 2nd, code sample for jQuery as given below.

<script type="text/javascript">

     function isNumberFilter(keyEvent) {

         var keyResult = (keyEvent.which) ? keyEvent.which : event.keyCode

         if (keyResult > 31 && (keyResult < 48 || keyResult > 57))

             return false;

         return true;

     }

</script>