Ajax example
<html> <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script> </head> <script> $(document).ready(function(){ $("button").click(function(){ $.ajax({url: "demo_test.txt", success: function(result){ $("#div1").html(result); }}); }); }); checkURL(); </script> </head> <body> <div id="div1"><h2>Let jQuery AJAX Change This Text</h2></div> <button>Get External Content</button> </body> </html>