This method compiles an XPathExpression which can then be used for (repeated) evaluations.
Syntax
xpathExpr = document.createExpression(xpathText, namespaceURLMapper);
Parameters
- xpathText is a string which is the XPath expression to be compiled.
- namespaceURLMapper is a function which maps a namespace prefix to a namespace URL (or null if none needed).
Prior to Firefox 3, you could call this method on documents other than the one you planned to run the XPath against. Under Firefox 3, you must call it on the same document.
Return value
Browser compatibility
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.
Update compatibility data on GitHub
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
createExpression | Chrome Full support 1 | Edge Full support 12 | Firefox Full support 1 | IE No support No | Opera Full support ≤12.1 | Safari Full support 3 | WebView Android Full support 1 | Chrome Android Full support 18 | Firefox Android Full support 4 | Opera Android Full support ≤12.1 | Safari iOS Full support 1 | Samsung Internet Android Full support 1.0 |
Legend
- Full support
- Full support
- No support
- No support