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Single-line regexes using /s - video
Count elements using XML::XPath
Data Serialization in Perl
How does the world wide web work?
How to preserve XML::Simple element order
XML::Simple sorting
XML::Writer examples
Skip tests if prerequisites are not installed
Sum numbers in a file - video
min, max, sum in Perl using List::Util
Unique values in an array in Perl
Unique values in an array reference in Perl
Passing two arrays to a function
Strings in Perl: quoted, interpolated and escaped
Understanding dates using regular expressions
Perl Tk: The label, button, and entry widgets
Memoization - speeding up function calls by caching of return values
Asynchronous web application with PSGI and Twiggy
Combining SVG and PSGI
Concurrent Requests and measuring performance with ApacheBench