The entries()
method of the DOMTokenList
interface returns an iterator
allowing you to go through all key/value pairs contained in this object. The values are Array
s which have [key, value] pairs, each representing a single token.
DOMTokenList.entries()
Syntax
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:
const span = document.querySelector("span"); const classes = span.classList; const iterator = classes.entries(); for (let value of iterator) { span.textContent += `(${value})`; }
The output looks like this:
Specifications
No specification data found for api.DOMTokenList.entries
.
Check for problems with this page or contribute a missing spec_url
to mdn/browser-compat-data. Also make sure the specification is included in w3c/browser-specs.
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 | |
entries |
42
|
16
|
50
|
No
|
32
|
10.1
|
45
|
45
|
50
|
32
|
10.3
|
5.0
|
See also
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/DOMTokenList/entries