var element = $("img");
will set the variable element to the second <img> element in the matched set of document's all <img> elements.
Hot Tip #2: Create Union of Elements with Multiple Selectors
Union of multiple selectors can be created by listing selectors separated by commas 'n a s'ngle call to $()
will match all <img> and <p> elements, while the following matches all <div> elements with a title attribute and all <img> elements with alt attributes.
Hot Tip #3: Be Careful with not() and remove() methods!
.not() method removes elements from the matched set while the .remove() method removes the elements in the matched set from the HTML DOM.