In a JavaScript file, you can start writing jQuery code like this :The Document Ready Event You might have noticed that all jQuery methods in our examples, are inside a document ready event:$(document).ready(function(){// jQuery methods go here...});jQuery Syntax The jQuery syntax is tailor-made for selecting HTML elements and performing some action on the element(s).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

elements.$(".test").hide() - hides all elements with class="test".$("#test").hide() - hides the element with id="test".