Web/API/NodeList/keys

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

Syntax

nodeList.keys();

Return value

Returns an iterator.

Example

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

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

var list = node.childNodes; 

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

The result is:

0
1
2

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
keys	Chrome Full support 51	Edge Full support 16	Firefox Full support 50	IE No support No	Opera Full support 38	Safari Full support 10	WebView Android Full support 51	Chrome Android Full support 51	Firefox Android Full support 50	Opera Android ?	Safari iOS Full support 10	Samsung Internet Android Full support 5.0

Legend

Full support  

Full support

No support  

No support

Compatibility unknown  

Compatibility unknown

See also

• Node
• NodeList

NodeList.keys() by Mozilla Contributors is licensed under CC-BY-SA 2.5.