Web/API/DOMTokenList/entries

The DOMTokenList.entries() method returns an iterator allowing you to go through all key/value pairs contained in this object. The values are DOMString objects, each representing a single token.

Syntax

tokenList.entries();

Return value

Returns an iterator.

Examples

In the following example we retrieve the list of classes set on a <span> element as a DOMTokenList using Element.classList. We when retrieve an iterator containing the key/value pairs using entries(), then iterate through each one using a for...of loop, writing them to the <span>'s Node.textContent.

First, the HTML:

<span class="a b c"></span>

Now the JavaScript:

let span = document.querySelector("span");
let classes = span.classList;
let iterator = classes.entries();

for (let value of iterator) {
  span.textContent += value + ' ++ ';
}

The output looks like this:

Specifications

Specification	Status	Comment
DOMThe definition of 'entries() (as iterable<Node>)' in that specification.	Living Standard	Initial definition.

Browser compatibility

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
`entries`	Chrome Full support 42	Edge Full support 16	Firefox Full support 50	IE No support No	Opera Full support 32	Safari Full support 10.1	WebView Android Full support 45	Chrome Android Full support 45	Firefox Android Full support 50	Opera Android Full support 32	Safari iOS Full support 10.3	Samsung Internet Android Full support 5.0

Legend

Full support: Full support
No support: No support