in reply to printing hash produce errors
Your problem is that you're mixing up hashes (%hash) with hash references ({ key => value }) -- note the braces.
Replace the braces with parens and it should work:
This produces a flat list, not a hashref, which is exactly what assignment to a hash wants.my %hash = ('perl' => 1 , 'C' => 0) ;
Alternatively you could use a hashref (= a scalar pointing to a hash) everywhere:
my $hash = {'perl' => 1 , 'C' => 0} ; foreach my $key(sort keys %$hash) { print "$key : $hash->{$key} \n" ; }
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Re^2: printing hash produce errors
by Xfiles (Initiate) on Jun 02, 2013 at 12:22 UTC |
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