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JavaScript AJAX Basics (retiring) Programming AJAX Create a callback

Robbie Thomas
Robbie Thomas
31,093 Points

Create a callback

It asks to create a onreadystatechange, I did that and I'm not getting through.

var xhr = new XMLHttpRequest();
onreadystatechange = function(); { }  
xhr.open('GET', 'sidebar.html');
<!DOCTYPE html>
  <meta charset="utf-8">
  <title>AJAX with JavaScript</title>
  <script src="app.js"></script>
  <div id="main">
  <div id="sidebar"></div>
Robbie Thomas
Robbie Thomas
31,093 Points

Nvm, got it. I see what I did wrong.


1 Answer

Steven Parker
Steven Parker
229,578 Points

:point_right: It looks like you have two issues:

  • you have a semicolon in the middle of the function definition. It needs to go at the end of the line.
  • you forgot to prefix onreadystatechange with "xhr."