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DOMTokenList.add()

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

Syntax

tokenList.add(token);

Parameters

token
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:

Specifications

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

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support (Yes) (Yes) 10 (Yes) (Yes)
Feature Android Webview Chrome for Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support (Yes) (Yes) (Yes) (Yes) ? (Yes)

 

Document Tags and Contributors

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