JSFiddle - React, Tailwind, and code Playground

by Frank Liu

HTML

<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
 
</head>
<body>

<p>Name: <input id="reg-name" type="text" name="user"></p>
<p>Name: <input id="user-email" type="email" name="user"></p>

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

</body>
</html>

JavaScript

$(document).ready(function(){
   
  $("#reg-name, #first-name, #last-name, #user-email").change(function(){
      let expectVal = $(this).val().trim();
      $(this).val(expectVal);
    
  });
});