JSFiddle - React, Tailwind, and code Playground

by Naeem Shaikh

HTML

Enter domain name: <input type="text" id="domain">

JavaScript

$(document).ready(function(){
    var prevText;
  $("input").keyup(function(e){
      if(e.keyCode!=8){
          
      
      var str=$("input").val().replace(".com", "");
     
 str=str+'.com'
  
      $("#domain").val( str );
      }else{
          
       var str=$("input").val().replace(".com", "");
     var str = str.substring(0, $("input").val().length-4);
      str=str+'.com'
  
      $("#domain").val( str );
          
      }
     
  });
});