Yes ... negating means evaluating in boolean context!

(well "pure"¹ is a risky adjective in the sphere of Perl's DWIM flexibility ... ;)

Anyway if this approach ever fails it certainly is a bug!

EDIT:

IMHO people prefer using 0 for false because it's easier to print and read than an empty string. But technically this is not necessary.

Cheers Rolf

¹) lets say "well-defined"!

In reply to Re^5: A more concise way to map the contents of an array. by LanX
in thread A more concise way to map the contents of an array. by Amblikai

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