JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
<input type="text" name="test" />

JavaScript

$(document).ready(function () {
    $( "input[name='test']" ).keydown(function (event) {
        if (event.shiftKey) {
            event.preventDefault();
        }
        if (event.keyCode == 46 || event.keyCode == 8) {
        }
        else {
            if (event.keyCode < 95) {
                if (event.keyCode < 48 || event.keyCode > 57) {
                    event.preventDefault();
                }
            }
            else {
                if (event.keyCode < 96 || event.keyCode > 105) {
                    event.preventDefault();
                }
            }
        }
    });
});