Searching for "variable"

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• $_ the default variable of Perl

• ref - What kind of reference is this variable?

• Scalar values and variables - video

• Scalar variables

• Constants and read-only variables in Perl

• How much memory do Perl variables use?

• $a - $b - Special variables when using sort(). Don't use them for anything else besides your sort function!

• Scope of Variables - video

• Variable names

• Variable declaration in Perl

• Package variables and Lexical variables in Perl

• Variable number of parameters in Perl subroutines

• "my" variable masks earlier declaration in same scope

• Scope of variables in Perl

• Variable interpolation - User Input and Output - chomp - video

• Detect recursion using state variables

• Static and state variables in Perl

• Useless use of private variable in void context

• Exercise: parse variable width fields - video

• Solution: parse variable width fields - video