define your own
hgrep!
$a=key
$b=value
DB<142> sub hgrep (&%) {
my $f=shift;
my @res;
local ($a,$b);
while ( ($a,$b)= splice(@_,0,2) ) {
push @res, $a => $b if $f->()
}
return @res
}
DB<143> %h = ( cat=>0, cut=>1, caty=>2 )
=> ("cat", 0, "cut", 1, "caty", 2)
DB<144> hgrep { $a =~ /^cat/ } %h
=> ("cat", 0, "caty", 2)
DB<145> hgrep { $b>1 } %h
=> ("caty", 2)
UPDATE: see Hash::MostUtils for a similar approach.
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