SlideShare a Scribd company logo
Homage to Perl
YAPC::EU 2015
<>
Dropping out
from high school
Pragmatism
Scalars
It is OK to break
symmetry
Context
Design for the
common case
Client code first
Think with your editor,
not a blackboard
USENET
There are many ways
to help in an open
source project
IRC Spider Sense
How much does the
person know?
XY questions
IRC is the best
debugging school
Iain Truskett
Documentation
perldoc perl
perldoc Moose
Empathy
Testing
CPAN
Crazy creativity
Acme::
JAPHs
Perl Golf
Coprimality test
Number of divisors
Fraction reduction
Integer square root
Euler’s φ
Square-free test
…
fxn/math-with-
regexps
Perl Poetry
To Larry
To the Perl
community
Thank You
Very Much

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Homage to Perl