XPathResult: numberValue 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.

Note: This feature is available in Web Workers.

The read-only numberValue property of the XPathResult interface returns the numeric value of a result with XPathResult.resultType being NUMBER_TYPE.

Value

The return value is the numeric value of the XPathResult returned by Document.evaluate().

Exceptions

TYPE_ERR

In case XPathResult.resultType is not NUMBER_TYPE, an XPathException of type TYPE_ERR is thrown.

Examples

The following example shows the use of the numberValue property.

HTML

html
<div>XPath example</div>
<div>Number of &lt;div&gt;s: <output></output></div>

JavaScript

js
const xpath = "count(//div)";
const result = document.evaluate(
  xpath,
  document,
  null,
  XPathResult.NUMBER_TYPE,
  null,
);
document.querySelector("output").textContent = result.numberValue;

Result

Specifications

Specification
DOM Standard
# dom-xpathresult-numbervalue

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
numberValue

Legend

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

Full support
Full support