get serialize data javascript

1// HTML
2<form id="myForm" name="myForm">
3  <div>
4    <label for="username">Enter name:</label>
5    <input type="text" id="username" name="username">
6  </div>
7  <button type="button" onclick="clickMe()">Click</button>
8</form>
9
10// JS
11function clickMe(){
12  let myForm = document.getElementById('myForm');
13  let formData = new FormData(myForm);
14  console.log(formData.get('username'));
15}