JSFiddle - React, Tailwind, and code Playground

by jeetu_verma11

HTML

<input id="mobNumber" type="text" name="mobNumber" onkeydown="validateTextbox()"/>

JavaScript

$("#mobNumber").keydown(function (e) {
    //alert("ffdsfdsfd");
     var id  = $(e).attr('id');
    alert(id);
        $("#"+id).keypress(function(e) {
                //alert(e.keyCode);
            if ( (e.ctrlKey) || (e.which >= 48 && e.which <= 57) || (e.which == 95) || (e.which == 8) || (e.which == 32) || (e.which == 0)) {
                           }
            else
            {
                e.preventDefault();
            }
          });
    
     });
function validateTextbox(e)
{
    alert("ffdsfdsfd");
        var clas  = $(e).attr('class');
        $("."+clas).keypress(function(e) {
                //alert(e.keyCode);
            if ( (e.ctrlKey) || (e.which >= 48 && e.which <= 57) || (e.which == 95) || (e.which == 8) || (e.which == 32) || (e.which == 0)) {
                           }
            else
            {
                e.preventDefault();
            }
          });
}