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JavaScript AJAX Basics (retiring) Programming AJAX Check for the correct ready state

Posted by Andrew Alvarez
Andrew Alvarez
11,964 Points

Challenge Task 4 of 4

Challenge Task 4 of 4

Now use a DOM element's innerHTML property to set the HTML inside the sidebar div to the server's response.

Bummer! To place the server's response inside the div, you need to assign the XHR object's responseText property to the innerHTML property, like this: document.getElementById('sidebar').innerHTML = xhr.responseText;

What am i Doing Wrong?

app.js 
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
  if (xhr.readyState === 4){
  xhr.status = 200
  document.getElementById('sidebar').innerHTML = xhr.sidebar;
  }
};
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

Michael Hess
Michael Hess
24,512 Points
Michael Hess
Michael Hess
24,512 Points

Hi Andrew,

In app.js, you may want to change xhr.sidebar to xhr.responseText

var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
  if (xhr.readyState === 4){
  xhr.status = 200
  document.getElementById('sidebar').innerHTML = xhr.responseText; // changed from xhr.sidebar to xhr.responseText
  }
};
xhr.open('GET', 'sidebar.html');
xhr.send();

Hope this helps!

Barry Barnes
Barry Barnes
18,631 Points
Barry Barnes
Barry Barnes
18,631 Points

THANKS! That worked, bud! RAWR!!!!!!!!