Why I Like Perl

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AP - Lexical Scope

• default variables live in a 'package'
• lifetime is 'current file'
• good practice makes lexical variables
  • visible only in enclosing scope
  • created on scope entry
  • destroyed on scope exit

    my $x = 3;
    {
    	my $x = 2;
    	print $x;
    }
    print $x;

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Slide 42 of 47