Attr: name property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The read-only name property of the Attr interface returns the qualified name of an attribute, that is the name of the attribute, with the namespace prefix, if any, in front of it. For example, if the local name is lang and the namespace prefix is xml, the returned qualified name is xml:lang.

The qualified name is always in lower case, whatever case at the attribute creation.

Value

A string representing the attribute's qualified name.

Example

The following example displays the qualified name of the first attribute of the two first elements, when we click on the appropriate button.

HTML

html
<svg xml:lang="en-US" class="struct" height="1" width="1">Click me</svg>
<label xml:lang="en-US" class="struct"></label>

<p>
  <button>Show value for &lt;svg&gt;</button>
  <button>Show value for &lt;label&gt;</button>
</p>

<p>
  Qualified name of the attribute <code>xml:lang</code>:
  <output id="result">None.</output>
</p>

JavaScript

js
const elements = document.querySelectorAll(".struct");
const buttons = document.querySelectorAll("button");
const outputEl = document.querySelector("#result");

let i = 0;
for (const button of buttons) {
  const element = elements[i];
  button.addEventListener("click", () => {
    const attribute = element.attributes[0];
    outputEl.value = attribute.name;
  });
  i++;
}

Specifications

Specification
DOM Standard
# dom-attr-name

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
name

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

See also