JavaScript: The Definitive Guide, 5th Edition

Name

XPathResult: the result of an XPath query — Firefox 1.0; Safari 2.01; Opera 9: Object → XPathResult

Constants

The following constants define the possible types an XPath query can return. The resultType property of an XPathResult object holds one of these values to specify which kind of result the object holds. These constants are also used with Document.evaluate( ) and XPathExpression.evaluate( ) methods to specify the desired result type. The constants and their meanings are as follows:

ANY_TYPE

Passes this value to Document.evaluate( ) or XPathExpression.evaluate( ) to specify that any type of result is acceptable. The resultType property is never set to this value.

NUMBER_TYPE

numberValue holds the result.

STRING_TYPE

stringValue holds the result.

BOOLEAN_TYPE

booleanValue holds the result.

UNORDERED_NODE_ITERATOR_TYPE

The result is an unordered set of nodes, which can be accessed sequentially by calling iterateNext( ) repeatedly until it returns null. The document must not be modified during this iteration.

ORDERED_NODE_ITERATOR_TYPE

The result is a list of nodes, arranged in document order, which can be accessed sequentially by calling iterateNext( ) repeatedly until it returns null. The document must not be modified during this iteration.

UNORDERED_NODE_SNAPSHOT_TYPE

The result is a random-access list of nodes. The snapshotLength property specifies the length of the list, and the snapshotItem( ) method returns the node at a specified index. The nodes may not be in the ...