DOMTokenList: entries() method
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
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.
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 (const value of iterator) {
span.textContent += `(${value})`;
}
The output looks like this:
Specifications
No specification found
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
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