Document.createExpression()
This method compiles an XPathExpression
which can then be used for (repeated) evaluations.
Syntax
JavaScript
Copy Code
xpathExpr = document.createExpression(xpathText, namespaceURLMapper);
Parameters
- String
xpathText
(the XPath expression to be compiled) - Function
namespaceURLMapper
(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
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/document/createexpression