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| wantarray
- wantarray
-
Returns true if the context of the currently executing subroutine is
looking for a list value. Returns false if the context is looking
for a scalar. Returns the undefined value if the context is looking
for no value (void context).
return unless defined wantarray; # don't bother doing more
my @a = complex_calculation();
return wantarray ? @a : "@a";
This function should have been named wantlist() instead.
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