W3cubDocs

/Web APIs

NodeList: forEach() method

The forEach() method of the NodeList interface calls the callback given in parameter once for each value pair in the list, in insertion order.

Syntax

js

forEach(callback)
forEach(callback, thisArg)

Parameters

callback

A function to execute on each element of someNodeList. It accepts 3 parameters:

currentValue

The current element being processed in someNodeList.

currentIndex Optional

The index of the currentValue being processed in someNodeList.

listObj Optional

The someNodeList that forEach() is being applied to.

thisArg Optional

Value to use as this when executing callback.

Return value

Example

js

const node = document.createElement("div");
const kid1 = document.createElement("p");
const kid2 = document.createTextNode("hey");
const kid3 = document.createElement("span");

node.appendChild(kid1);
node.appendChild(kid2);
node.appendChild(kid3);

const list = node.childNodes;

list.forEach(function (currentValue, currentIndex, listObj) {
  console.log(`${currentValue}, ${currentIndex}, ${this}`);
}, "myThisArg");

The above code results in the following:

[object HTMLParagraphElement], 0, myThisArg
[object Text], 1, myThisArg
[object HTMLSpanElement], 2, myThisArg

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
forEach 51 16 50 No 38 10 51 51 50 41 10 5.0

See also

© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/NodeList/forEach