Baseline Widely available
The contains()
method of the DOMTokenList
interface returns a boolean value â true
if the underlying list contains the given token, otherwise false
.
token
A string representing the token you want to check for the existence of in the list.
A boolean value, which is true
if the calling list contains token
, otherwise false
.
In the following example we retrieve the list of classes set on a <span>
element as a DOMTokenList
using Element.classList
. We then test for the existence of "c"
in the list, and write the result into the <span>
's Node.textContent
.
First, the HTML:
<span class="a b c"></span>
Now the JavaScript:
const span = document.querySelector("span");
span.textContent = span.classList.contains("c")
? "The classList contains 'c'"
: "The classList does not contain 'c'";
The output looks like this:
Specifications Browser compatibilityRetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4