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Re: How to check if a variable's value is equal to a member of a list of values

by LanX (Canon)
on Mar 25, 2013 at 14:09 UTC ( #1025310=note: print w/ replies, xml ) Need Help??


in reply to How to check if a variable's value is equal to a member of a list of values

could you please elaborate more, I don't really understand your usage of values and keys.

lookups of strings (!) are most efficient with hashes, ...

> then just using something like 1 for the value.

... and you don't need to assign any value, undef is enough

my %look; @look{@set_of_values}=(); ... print "gotcha" if exists $look{$to_check};

You're free to put anything other than undef in the slots if you need to do further checks.

Someone proposed using smartmatch ~~, but I doubt this scales well in repeated use (if their is no magic background optimization happening)

Cheers Rolf

( addicted to the Perl Programming Language)


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