Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript AJAX Basics (retiring) AJAX Concepts A Simple AJAX Example

Debarshi Ghosh
Debarshi Ghosh
6,812 Points

Why is no response text showing on my browser?

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <link href='//fonts.googleapis.com/css?family=Varela+Round' rel='stylesheet' type='text/css'>
  <link rel="stylesheet" href="css/main.css">
  <title>AJAX with JavaScript</title>
  <script>
    var xhr = new XMLHttpRequest();
    xhr.onreadystatechange = function(){
      if (xhr.onreadystatechange === 4){
        document.getElementById('ajax').innerHTML = xhr.responseText;
      }
    };
    xhr.open('GET', 'sidebar.html');
    xhr.send();
  </script>
</head>
<body>
  <div class="grid-container centered">
    <div class="grid-100">
      <div class="contained">
        <div class="grid-100">
          <div class="heading">
            <h1>Bring on the AJAX</h1>
          </div>
          <div id="ajax">

          </div>
        </div>
      </div>
    </div>
  </div>
</body>
</html>

//Fixed Code Presentation

How to post Code

2 Answers

Martijn Schuijers
Martijn Schuijers
9,961 Points

Hi Debarshi,

The condition you are using in your if-statement is incorrect. You should check the readyState property on the xhr object:

if (xhr.readyState === 4) {
  document.getElementById('ajax').innerHTML = xhr.responseText;
}

What do you mean Martin? Thats exactly how Dave McFarland placed his code on workspace.

Debarshi Ghosh
Debarshi Ghosh
6,812 Points

Thanks Martijn, it works perfectly now