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Strings in Perl: quoted, interpolated and escaped
strings in single quotes - video
Can't call method ... on unblessed reference
Private Member Data shouldn't be accessed directly - encapsulation violation
Don't keep generated files in version control
Don't use $a and $b outside of sort, not even for examples
What's new in Perl 5.10? say, //, state
=> Fat arrow (or fat comma), a fancy way to write a comma ','. Especially used in key-value pairs.
Can't locate object method "..." via package "1" (perhaps you forgot to load "1"?)
Can't use Net::Appliance::Session inside a thread
Implementing 'is_any' to test multiple expected values
The 'if' statement - video
Using 'like' to test without exact values
Can't locate Object method "cells" via Win32::IEAutomation
Don't Open Files in the old way
Does the 'all' function of List::MoreUtils really short-circuit?
Don't interpolate in printf (Missing argument in sprintf at ...)
Crypt::SSLeay - 500 Can't connect to ____ (Crypt-SSLeay can't verify hostnames)
Time::Local - Day '31' out of range 1..30
Can't locate ... in @INC