DOMTokenList.add()

The add() method of the DOMTokenList interface adds the given token to the list.

Syntax

tokenList.add(token1[, token2[, ...]]);

Parameters

tokenN
A DOMString representing the token you want to add to the list.

Return value

Void.

Examples

In the following example we retrieve the list of classes set on a <span> element as a DOMTokenList using Element.classList. We then add a new token to the list, and write the list into the <span>'s Node.textContent.

First, the HTML:

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

Now the JavaScript:

var span = document.querySelector("span");
var classes = span.classList;
classes.add("d");
span.textContent = classes;

The output looks like this:

You can add multiple tokens as well:

span.classList.add("d", "e", "f");

Specifications

Specification Status Comment
DOM
The definition of 'add()' in that specification.
Living Standard Initial definition

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support Yes12 Yes10 Yes Yes
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support Yes Yes ? Yes Yes Yes Yes

Document Tags and Contributors

Contributors to this page: tjcrowder, fscholz, chrisdavidmills
Last updated by: tjcrowder,