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Re^2: Checking a hash for two matching values.

by moritz (Cardinal)
on Sep 17, 2013 at 05:51 UTC ( #1054392=note: print w/ replies, xml ) Need Help??


in reply to Re: Checking a hash for two matching values.
in thread Checking a hash for two matching values.

It really depends on whether walkingthecow wants a case insensitive substring search, as his own code implies, or a an exact, case sensitive match as your code does.


Comment on Re^2: Checking a hash for two matching values.
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Re^3: Checking a hash for two matching values.
by farang (Chaplain) on Sep 17, 2013 at 19:11 UTC

    It's easy enough to add case insensitivity to NetWallah's code with fc or lc.

    For v5.16 or newer:

    use v5.16; ... my @found= grep { my %r = reverse map fc, %$_; exists $r{cat} && exists $r{dog} } @pets;
    For older versions as well:
    my @found= grep { my %r = reverse map lc, %$_; exists $r{cat} && exists $r{dog} } @pets;

Re^3: Checking a hash for two matching values.
by NetWallah (Abbot) on Sep 17, 2013 at 19:17 UTC
    Hmm - I did not notice any hints of requiring case-insensitivity, but in any case, that requirement is easily accommodated in my code by adding a "map {lc}" .
    my @found= grep { my %r = map{lc} reverse %$_; exists $r{cat} && exis +ts $r{dog}} @pets;

                 My goal ... to kill off the slow brain cells that are holding me back from synergizing my knowledge of vertically integrated mobile platforms in local cloud-based content management system datafication.

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