jQuery.map()

Translate all items in an array or object to new array of items.

.data()

Store arbitrary data associated with the matched elements or return the value at the named data store for the first element in the set of matched elements.

Data | Utilities

jQuery.queue()

Show or manipulate the queue of functions to be executed on the matched element.

Utilities

jQuery.extend()

Merge the contents of two or more objects together into the first object.

Deprecated > Deprecated 3.3 | Events > Event Handler Attachment | Utilities

jQuery.proxy()

Takes a function and returns a new one that will always have a particular context.

Data | Utilities

jQuery.data()

Store arbitrary data associated with the specified element and/or return the value that was set.

Utilities

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.

Selectors > Basic Filter

:lang() Selector

Selects all elements of the specified language.

Traversing > Filtering

.map()

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

Selectors > Child Filter

:only-of-type Selector

Selects all elements that have no siblings with the same element name.

Selectors > Child Filter

:nth-last-of-type() Selector

Selects all the elements that are the nth-child of their parent in relation to siblings with the same element name, counting from the last element to the first.

Effects > Custom