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"SCALAR"
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scalar
Conext sensitivity - video
array in context - video
ref - What kind of reference is this variable?
Comparing scalars in Perl
Scalar and List context in Perl, the size of an array
Sets in Perl using Set::Scalar
Filehandle in SCALAR and LIST context - video
Scalar values and variables - video
Scalar variables
hash in SCALAR context - video
wantarray - returning list or scalar based on context
Perl hash in scalar and list context
STDIN in scalar and list context
Scalar found where operator expected
Scalar values
Scalar value ... better written as ...
Reading from a file in scalar and list context
Scalar value constructors