JSFiddle - React, Tailwind, and code Playground
by Naeem Shaikh
HTML
Enter domain name: <input type="text" id="domain">
JavaScript
$(document).ready(function(){
var prevText;
$("input").keyup(function(e){
var str=$("input").val().replace(".com", "");
str=str+'.com'
$("#domain").val( str );
});
});