/*
  AJAX
  - Asynchronous JavaScript And XML
  - Approach To Use Many Technologies Together [HTML, CSS, Js, DOM]
  - It Use "XMLHttpRequest" Object To Interact With The Server
  - You Can Fetch Data Or Send Data Without Page Refresh
  - Examples
  --- Youtube Studio
  --- Google Drive
  --- Upload Article Photo
  --- Form Check Name

  Test new XMLHttpRequest();
  Request And Response
  Status Code
*/

let req = new XMLHttpRequest();
console.log(req);