[FWP] hash slicing (was: weird behavior with sort and unique-ing)

[Uri Guttman <uri@sysarch.com>]

>>>>> "AL" == Andy Lester <andy@petdance.com> writes:

  AL> Wow, I just went and looked at some of my code and my standard
  AL> dedupe function takes 40x as long as the hashslice version.

hash slicing is one of the most underutilized features in perl.  since
it does its loop internally in c, it is fairly fast. as larry rosler and
i (and others) have noted, usually the fastest perl has the fewest perl
operators. for more on hash slices check out my tutorial on them:

http://www.sysarch.com/perl/tutorials/hash_slices.txt

have the appropiate amount of fun,

uri

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