Re: Printing only the "keys that have a value" in hash

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Re^2: Printing only the "keys that have a value" in hash by iphone (Beadle) on Nov 01, 2010 at 02:02 UTC
I have two problems here 1.Hash values are getting printed as array references. 2.I need to print "only the keys and it's corresponding values" if a value is present for the key I tried to use your suggestion but getting the following warning exists argument is not a HASH or ARRAY element at orphan_plf.pl line 58 `foreach my $key ( keys %Hash_filematches ) { my $value = {$Hash_filematches{$key}}; print "$key => $value\n" if(exists {$Hash_filematches{$key}}); }` [download]	[reply] [d/l]

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Re^2: Printing only the "keys that have a value" in hash
by iphone (Beadle) on Nov 01, 2010 at 02:02 UTC

I have two problems here 1.Hash values are getting printed as array references. 2.I need to print "only the keys and it's corresponding values" if a value is present for the key

foreach my $key ( keys %Hash_filematches ) {
        my $value = {$Hash_filematches{$key}};
        print "$key => $value\n" if(exists {$Hash_filematches{$key}});
    }
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