Mastering Modern Perl: Writing Efficient and Maintainable Code/

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Quiz: Perl Patterns and Idioms

Quiz: Perl Patterns and Idioms

Test your knowledge of language patterns in Perl.

We'll cover the following...
Technical Quiz
1.

What is the output of this variant of the Schwartzian transform?

my %extensions = (
'042' => 'Nick',
'000' => 'Nick',
'002' => 'Wesley',
'088' => 'Nick'
);

print for
   map { " $_->[0]" }
   sort { $a->[1] cmp $b->[1] }
   sort { $a->[0] cmp $b->[0] }
   map { [ $_ => $extensions{$_} ] }
   keys %extensions;
A.

000 002 042 088

B.

088 042 002 000

C.

000 042 088 002

D.

002 000 042 088

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