in reply to Re: Re: extracting values from hashes
in thread extracting values from hashes

If you just want the array elements that exists as keys in the hash, a simple grep() should do the job. 
my @array = qw/sarah john/;
my %hash  = (
  sarah => 19,
  john  => 25,
  emma  => 22,
);
## push() would be superfluous
my @data = grep exists $hash{$_}, @array;

print "data: @data\n";

__output__

data: sarah john

[download]

HTH

_________
broquaint

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Re: Re: Re: Re: extracting values from hashes
by Anonymous Monk on Mar 18, 2003 at 14:30 UTC
    its really the values i wanted, not the keys. thanks though
[reply]
      Just add a map before the grep like so 
      my @data = map $hash{$_}, grep exists $hash{$_}, @array;

      [download]

      HTH

      _________
      broquaint

[reply]
[d/l]

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