Further to davorg's explanation, my usual idiom for getting the desired result is to move the default into the dereference:

  my @index = @{ $args{Index} || [] };

[download]

This sidesteps the problem of @array || something forcing the array into scalar context, and also permits an undefined value.

Hugo

In reply to Re: Setting defaults in subroutines by hv
in thread Setting defaults in subroutines by rbi

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