JSFiddle - React, Tailwind, and code Playground

by chintansoni

HTML

<input type="text" maxlength="3" value="" id="txtData" onkeypress="return isNumber(event)" />

JavaScript

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