The item()
method of the DOMTokenList
interface returns an item in the list by its index.
tokenList.item(index);
DOMString
representing the index of the item you want to return.A DOMString
representing the returned item. It returns undefined
if the number is greater than or equal to the length of the list.
In the following example we retrieve the list of classes set on a <span>
element as a DOMTokenList
using Element.classList
. We then retrieve the last item in the list using item(length-1), and write it 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; var item = classes.item(classes.length-1); span.textContent = item;
The output looks like this:
Specification | Status | Comment |
---|---|---|
DOM The definition of 'item()' in that specification. | Living Standard | Initial definition |
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) |
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https://developer.mozilla.org/en-US/docs/Web/API/DOMTokenList/item