Your problem stems from the fact that what is returned by the sort function is not an array, it is a list. The function scalar returns the number of elements in an array, but it does not work on general lists, only on arrays.

Nuance

Baldrick, you wouldn't see a subtle plan if it painted itself purple and danced naked on top of a harpsichord, singing "Subtle plans are here again!"

In reply to RE: scalar doesn't work values returned by a function? by nuance
in thread scalar doesn't work values returned by a function? by ZZamboni

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