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My question is this: Is there a way that an anonymous sub stored as a hash value can have access to its associated key?
Unlike what several others have said, you can. In the code below, the anonymous sub gets the key belonging to the value passed in as its first argument.
#!/usr/bin/perl use strict; use warnings; package Cute; sub TIEHASH {bless {}, shift} sub STORE {my ($self, $key, $sub) = @_; $$self{$key} = sub {$sub->($key)}} sub FETCH {${$_[0]}{$_[1]}} package main; tie my %hash, 'Cute'; my $greeting = sub {print "Hello, $_[0]\n"}; $hash{world} = $greeting; $hash{earth} = $greeting; foreach my $key (qw /world earth/) { &{$hash{$key}}; } __END__ Hello, world Hello, earth

In reply to Re: Can an anonymous sub in a hash value know its key? by Anonymous Monk
in thread Can an anonymous sub in a hash value know its key? by webengr

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