Interface NodeList

NodeList objects are collections of nodes, usually returned by properties such as Node.childNodes and methods such as document.querySelectorAll().

MDN Reference

interface NodeList {
    length: number;
    forEach(
        callbackfn: (value: Node, key: number, parent: NodeList) => void,
        thisArg?: any,
    ): void;
    item(index: number): null | Node;
    [index: number]: Node;
}

Hierarchy (View Summary)

Indexable

  • [index: number]: Node

Properties

length

Methods

forEach item

Properties

Readonlylength

length: number

Returns the number of nodes in the collection.

MDN Reference

Methods

forEach

  • forEach(
        callbackfn: (value: Node, key: number, parent: NodeList) => void,
        thisArg?: any,
    ): void

    Performs the specified action for each node in an list.

    Parameters

    • callbackfn: (value: Node, key: number, parent: NodeList) => void

      A function that accepts up to three arguments. forEach calls the callbackfn function one time for each element in the list.

    • OptionalthisArg: any

      An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.

    Returns void

item

  • item(index: number): null | Node

    Returns the node with index index from the collection. The nodes are sorted in tree order.

    MDN Reference

    Parameters

    • index: number

    Returns null | Node

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