Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://developer.mozilla.org/en-US/docs/Web/API/DOMTokenList/keys below:

DOMTokenList: keys() method - Web APIs

Baseline Widely available

The keys() method of the DOMTokenList interface returns an iterator allowing to go through all keys contained in this object. The keys are unsigned integers.

None.

Returns an iterator.

In the following example we retrieve the list of classes set on a <span> element as a DOMTokenList using Element.classList. We then retrieve an iterator containing the keys using keys(), then iterate through those keys using a for...of loop, writing each one 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.keys();

for (let value of iterator) {
  span.textContent += `(${value}) `;
}

The output looks like this:

RetroSearch 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