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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.

Argument Kind Required Purpose
collection nodes yes an XPath expression that resolves to a collection of nodes
key string yes a string containing an XPath expression that resolves to a key value for a given node

Usage and examples

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org.gramar.base/xfn.unique.txt · Last modified: 2016/06/27 20:35 (external edit)