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Strings in Perl: quoted, interpolated and escaped
strings in single quotes - video
=> Fat arrow (or fat comma), a fancy way to write a comma ','. Especially used in key-value pairs.
Can't locate inc/Module/Install.pm in @INC (you may need to install the inc::Module::Install module) (@INC contains: ...)
$a - $b - Special variables when using sort(). Don't use them for anything else besides your sort function!
Don't use $a and $b outside of sort, not even for examples
Don't keep generated files in version control
Can't locate object method "..." via package "1" (perhaps you forgot to load "1"?)
Argument ... isn't numeric in numeric ...
Can't locate ... in @INC
Can't use string (...) as an HASH ref while "strict refs" in use at ...
Can't use Net::Appliance::Session inside a thread
Does the 'all' function of List::MoreUtils really short-circuit?
Can't call method ... on unblessed reference
Don't interpolate in printf (Missing argument in sprintf at ...)
What's new in Perl 5.10? say, //, state
The 'if' statement - video
Can't locate Object method "cells" via Win32::IEAutomation
Implementing 'is_any' to test multiple expected values
Using 'like' to test without exact values