sub never return arrays. They return lists. If you do return undef a list of one element is returned. If you assign that to a scalar, the scalar will have the undefined value. If you assign it to an array, you get an array with one element, that element being undef. It's not any different from return "feebleprops".

What is special cased is return;, that is, a return without arguments. In scalar context, that will return an undefined value - in list context, it will return an empty list. This is done especially to help in cases you are using.

Abigail

In reply to Re: sub returning undef by Abigail-II
in thread sub returning undef by Scarborough

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