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Func Key
# XSLT key() Function
* * Complete XSLT Function Reference Object](#)
* * *
## Definition and Usage
The key() function returns a node set from the document by using the index number specified by the element.
* * *
## Syntax
node-set key(string, object)
## Parameters
| Parameter | Description |
| :--- | :--- |
| string | Required. Specifies the name of the xsl:key element. |
| object | Required. The string to search for. |
### Example 1