Here are the URL for Google's jQuery Library:
https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js
https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.jsYou might be wondering why there are two versions of jQuery 1.x and 2.x, they both use the same APIs and they pretty much mirror each other on a release basis. The only difference is that the 2.x versions does not support IE 6,7, or 8. Just to be on the safe side I always use the 1.x versions.
<!DOCTYPE html>Now add the following script tag to the head element
<html lang="en">
<head>
<meta charset="utf-8" />
<title></title>
</head>
<body>
</body>
</html>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
To test if jQuery is working write a simple alert message using the $ sign, which is short hand the jQuery object.
<script>
$(document).ready(alert("jquery is
working"));
</script>
You should see an alert message that says "jquery is working" when you load the page.
Here is the complete markup code
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title></title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<script>
$(document).ready(alert("jquery is working"));
</script>
</head>
<body>
</body>
</html>
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