Embedding jQuery

<script type="text/javascript" src="jquery.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.3.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>


Testing for jQuery


Changing Website Content


Changing CSS


Fade In And Out

Most jQuery functions can be used two ways.
If the brackets are blank then the contents of the attribute will be returned.
If there is something in the brackets then the attribute will be updated.
Javascript names for display attributes are not always the same as in CSS. Hyphens are removed and there is camel case.


Animating


Asynchronous Javascript And XML


Regular Expressions

Matching the letter e in the phrase 'Regex is Great!' using the expression /e/g provides this result: