Extension org.gramar.base Function unique

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chrisgerken edited this page Sep 14, 2015 · 2 revisions

unique() Function

The unique() function filters and returns the given collection using the key XPath expression to calculate a key for each node in the collection.

Only the first node for a given key will be returned.

nodes collection - (required) an XPath expression that resolves to a collection of nodes
string key - (required) a string containing an XPath expression that resolves to a key value for a given node

Usage and examples

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