The read-only numberValue property of the XPathResult interface returns the numeric value of a result with XPathResult.resultType being NUMBER_TYPE.
Note: This feature is available in Web Workers
XPathResult: numberValue property
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 <div>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
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
numberValue |
1 | 12 | 1 | No | ≤12.1 | 3 | 4.4 | 18 | 4 | ≤12.1 | 1 | 1.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/XPathResult/numberValue