Return type: String
Returns:       The item's key.

Syntax

key of  shelf-name indexer?

This operation returns a string expression containing the item's key. If an indexer is not specified, the currently selected item on the shelf is examined.

It is an error if the specified item does not exist or if it doesn't have a key.

Related Concepts    Shelves

[ INDEX ] [ CONCEPTS ] [ TASKS ] [ SYNTAX ] [ LIBRARIES ] [ LEGACY LIBRARIES ] [ ERRORS ]