.promise()

Return a Promise object to observe when all actions of a certain type bound to the collection, queued or not, have finished.

.find()

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

.is()

Check the current matched set of elements against a selector, element, or jQuery object and return true if at least one of these elements matches the given arguments.

.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.

jQuery()

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

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.

Types

This page documents data types appearing in jQuery function signatures, whether defined by JavaScript itself or further restricted by jQuery. Unless explicitly stated otherwise, jQuery functions require primitive values where applicable, and do not accept their Object-wrapped forms. If you want to study these concepts in depth, take a look at MDN. You should be … Continue reading

.map()

Pass each element in the current matched set through a function, producing a new jQuery object containing the return values.