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

Posted by David Sotomayor
David Sotomayor
10,136 Points

ReferenceError when running my ajax example

I can't quite figure out what is wrong with my code. I'm following the video to the letter, but as I run it and bring up the console it states the HMLHttpRequest is undefined.

<script> var xhr = new HMLHttpRequest(); // AJAX Object xhr.onreadystatechange = function () { if ( xhr.readyState === 4 ) { document.getElementById('ajax').innerHTML = xhr.responseText; } }; // Callback Function xhr.open('GET', 'sidebar.html'); // Open a request function sendAJAX() { xhr.send(); // Send request document.getElementById( 'load' ).style.display = "none"; } </script>

2 Answers

Ali M Malik
Ali M Malik
33,293 Points

You misspelled XMLHttpRequest as HMLHttpRequest, which is undefined. Small mistakes can go unnoticed.

Hope this helps

David Sotomayor
David Sotomayor
10,136 Points
David Sotomayor
David Sotomayor
10,136 Points

I was slowly going insane there for a moment. A second pair of eyes did the trick. Thank you