JSFiddle - React, Tailwind, and code Playground

by Kabir Hossain

HTML

<p>Only numbers please: <p/>
<input type="number" name="someid" onkeypress="return isNumberKey(event)" /> 

<script>
function isNumberKey(evt){
    var charCode = (evt.which) ? evt.which : event.keyCode
    if (charCode > 31 && (charCode < 48 || charCode > 57))
        return false;
    return true;
}    
</script>