JSFiddle - React, Tailwind, and code Playground

by Jogesh Sharma

HTML

<input id="numberTxt">

JavaScript

$('#numberTxt').on("paste",function(e) {  
        var $this = $(this);
        setTimeout(function(){
            var val = $this.val(), 
                regex = /^[\d]+$/;
            if( regex.test(val) ){
                $this.val( val );
            }
            else{
                $this.val('');
            }
          alert(val);    
        },0);

});