DOMTokenList

The DOMTokenList interface represents a set of space-separated tokens. Such a set is returned by Element.classList, HTMLLinkElement.relList, HTMLAnchorElement.relList or HTMLAreaElement.relList. It is indexed beginning with 0 as with JavaScript Array objects. DOMTokenList is always case-sensitive.

Properties

This interface doesn't inherit any property.

DOMTokenList.length Read only: Is an integer representing the number of objects stored in the object.

This interface doesn't inherit any method.

DOMTokenList.item(): Returns an item in the list by its index (or undefined if the number is greater than or equal to the length of the list, prior to Gecko 7.0 returned null)
DOMTokenList.contains(): Returns true if the underlying string contains token, otherwise false
DOMTokenList.add(): Adds token to the underlying string
DOMTokenList.remove(): Removes token from the underlying string
DOMTokenList.toggle(): Removes token from string and returns false. If token doesn't exist it's added and the function returns true