Check jQuery loads (simple alert)

Loading jQuery Library: Link and load the jQuery library and check it loads successfully.

This checking script isn't the sort of thing you would put in a real site. It's just here so we can scheck that the linked jQuery library in this example loaded successfully.

The alert box will have told you if jQuery succeeded or failed to load

Notes:

The jQuery library has been downloaded using a script in the head of this page.
A small script in the HEAD of the page placed AFTER the link to jQuery tests whether jQuery loaded successfully and generates an alert box with either a success or failure message.

See the code:


	<-- Script to test if jQuery library loaded and alert success or failure -->
<script>
window.onload = function(){
  if (window.jQuery) {
  	// Alert with success message if jQuery loads
  	alert("jQuery library loaded successfully!");
  } else {
  	// Alert with failure message if jQuery doesn't load
  	alert("jQuery library did not load!");
  }
}
</script>