20 best Perl questions at stackoverflow in 2016

These are the 20 most rated questions at 2016 Stack Overflow.
Between brackets: question score & answers count
Built date: 2017/01/01 08:37:15 GMT

---

1. Why is `\s+` so much faster than `\s\s*` in this Perl regex? - [54/4]
2. Undocumented Perl variable %_? - [20/3]
3. Why are @@, @!, @, etc. not interpolated in strings? - [20/3]
4. What is the difference between `read` and `sysread`? - [16/1]
5. Chronological trace of function calls in C++ using etrace - [15/1]
6. Why does Perl's print fail to output anything to STDOUT and STDERR, but writes to a file successfully? - [14/4]
7. Close response under mod_perl 2 - [14/1]
8. Why does map() mask the 'undefined value' error? - [14/1]
9. How can I pick a random value between 0 and a bigint? - [13/3]
10. Why doesn't Perl v5.22 find all the sentence boundaries? - [13/2]
11. What is the preferred convention for Perl Inheritance - [12/3]
12. Why should I specify a use statement when using the say function? - [12/2]
13. How do I stop CPAN from accessing an unresponsive package repository? - [12/2]
14. Is the value returned by system() the same as "$?"? - [14/1]
15. Why should use warnings; go last? - [13/1]
16. How to connect to MySQL using UTF8 within a perl script? - [13/1]
17. Lowercasing script in Python vs Perl - [11/7]
18. Is there a less clumsy alternative for copying up to "n" array elements? - [11/5]
19. Does Data::Printer handle array slices? - [11/2]
20. Why is Perl inconsistent with sprintf rounding? - [11/2]