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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 ⁨October 2017⁩.

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

Syntax

keys()

Parameters

None.

Return value

Returns an iterator.

Example

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