(clxxviii) stackoverflow perl report

This is the ten most rated questions at Stack Overflow last week.
Between brackets: [question score / answers count]
Build date: 2015-03-28 19:22:50 GMT

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1. Why does adding one more alternative make my regex over 600 times slower? - [16/1]
2. what is ||= in perl for? - [4/2]
3. Why does Perl `printf` change the value of my $variable? - [4/1]
4. Conditionally persistent session with Plack::Middlware::Session - [3/1]
5. How to force list context for logical or operator - [3/1]
6. What is the difference between [% %] and [%- -%] in Template Toolkit? - [3/1]
7. What's a bulletproof way to deploy an internal Perl application with CPAN dependencies? - [3/0]
8. AWK: Maintain field spacing like input file - [2/5]
9. Mojolicious Not Setting Cookie Domain - [2/1]
10. greedy operator in regular expression is not working in Tcl 8.5 - [2/3]