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