JSFiddle - React, Tailwind, and code Playground

by Suryar Praveen

HTML

<!DOCTYPE html>
<html>

  <head>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    <script>
      $(document).ready(function() {

            $("button").click(function() {
              var seen = {};
              $('input[type=text]').each(function(i, item) {
                var data = $(item).val();
                if (seen.match(data)) {
                  $(this).remove();
                } else {
                  alert(data);
                }
              })
            });

    </script>
  </head>

  <body>

    <p>Name: <input type="text" name="user" id="user1"></p>
    <p>Name2: <input type="text" name="user2" id="user2"></p>

    <button>Set the value of the input field</button>

  </body>

</html>