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.
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.
js
entries()
Returns an iterator
.
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:
html
<span class="a b c"></span>
Now the JavaScript:
js
const span = document.querySelector("span"); const classes = span.classList; const iterator = classes.entries(); for (const value of iterator) { span.textContent += `(${value})`; }
The output looks like this:
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.
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 | 29 | 10.1 | 42 | 42 | 50 | 29 | 10.3 | 4.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/DOMTokenList/entries