Searches for all elements that match the specified expression. This method is a good way to find additional descendant elements with which to process. All searching is done using a jQuery expression. The expression can be written using CSS 1-3 Selector syntax, or basic XPath. An expression to search with. Starts with all paragraphs and searches for descendant span elements, same as $("p span") <p><span>Hello</span>, how are you?</p> $("p").find("span"); [ <span>Hello</span> ]