XPathEvaluator
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 XPathEvaluator
interface allows to compile and evaluate XPath expressions.
Constructor
XPathEvaluator()
-
Creates a new
XPathEvaluator
object.
Instance methods
XPathEvaluator.createExpression()
-
Creates a parsed XPath expression with resolved namespaces.
XPathEvaluator.createNSResolver()
Deprecated-
Returns the input as-is.
XPathEvaluator.evaluate()
-
Evaluates an XPath expression string and returns a result of the specified type if possible.
Example
Count the number of <div>
elements
The following example shows the use of the XPathEvaluator
interface.
HTML
html
<div>XPath example</div>
<div>Number of <div> elements: <output></output></div>
JavaScript
js
const xpath = "//div";
const evaluator = new XPathEvaluator();
const expression = evaluator.createExpression(xpath);
const result = expression.evaluate(
document,
XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,
);
document.querySelector("output").textContent = result.snapshotLength;
Result
Specifications
Specification |
---|
DOM # interface-xpathevaluator |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
XPathEvaluator | ||||||||||||
XPathEvaluator() constructor | ||||||||||||
createExpression | ||||||||||||
createNSResolver | ||||||||||||
evaluate |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- Deprecated. Not for use in new websites.
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.