jQuery
Basic syntax is: $(selector).action() A $ sign to define/access jQuery A (selector) to "query (or find)" HTML elements A jQuery action() to be performed on the element(s) Examples: * $(this).hide() - hides the current element. * $("p").hide() - hides all <p> elements. * $(".test").hide() - hides all elements with class="test". * $("#test").hide() - hides the element with id="test". You might have noticed that all jQuery methods in our examples, are inside a document ready event: <code> $(document).ready(function(){ // jQuery methods go here... }); </code> This is to prevent any jQuery code from running before the document is finished loading (is ready). It is good practice to wait for the document to be fully loaded and ready before working with it. This also allows you to have your JavaScript code before the body of your document, in the head section. Here are some examples of actions that can fail if met