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JavaScript AJAX Basics Programming AJAX Check for the correct ready state

Posted by Alonzo Delk
Alonzo Delk
6,991 Points

I need help adding a conditional statement

I've watched the videos over a few times and I'm still not getting the problem, could someone help me get through these objects?

app.js 
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
 if (request.readyState === 4) {
 }
};
xhr.open('GET', 'sidebar.html');
xhr.send();
index.html 
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>AJAX with JavaScript</title>
  <script src="app.js"></script>
</head>
<body>
  <div id="main">
    <h1>AJAX!</h1>
  </div>
  <div id="sidebar"></div>
</body>
</html>

1 Answer

Jess W
Jess W
9,490 Points
Jess W
Jess W
9,490 Points

Hi, I'm not sure if you're getting an error message that might help diagnose your problem, but on line 3 of app.js, is request defined anywhere? I think it should probably be xhr instead?