jQuery()

Return a collection of matched elements either found in the DOM based on passed argument(s) or created by passing an HTML string.

.closest()

For each element in the set, get the first element that matches the selector by testing the element itself and traversing up through its ancestors in the DOM tree.

.find()

Get the descendants of each element in the current set of matched elements, filtered by a selector, jQuery object, or element.

.nextUntil()

Get all following siblings of each element up to but not including the element matched by the selector, DOM node, or jQuery object passed.

.next()

Get the immediately following sibling of each element in the set of matched elements. If a selector is provided, it retrieves the next sibling only if it matches that selector.

.prev()

Get the immediately preceding sibling of each element in the set of matched elements. If a selector is provided, it retrieves the previous sibling only if it matches that selector.

jQuery.each()

A generic iterator function, which can be used to seamlessly iterate over both objects and arrays. Arrays and array-like objects with a length property (such as a function’s arguments object) are iterated by numeric index, from 0 to length-1. Other objects are iterated via their named properties.