NodeList: keys() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The NodeList.keys() method returns an iterator allowing to go through all keys contained in this object. The keys are unsigned integer.

Syntax

js
keys()

Return value

Returns an iterator.

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);

let list = node.childNodes;

// Using for...of
for (const key of list.keys()) {
  console.log(key);
}

The result is:

0
1
2

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
keys

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

See also