RubyConf Portugal 2015

Video recording and production done by RubyConf Portugal

Keyword parameters are introduced from Ruby 2.0. This feature helps us to write readable Ruby program. However, Ruby 2.0 and Ruby 2.1 have a performance issue because the keyword arguments are passed by Hash objects. Ruby 2.2 solves this performance issue and achieves over 10 times faster implementation. In this presentation, I introduce a brief history of Ruby's keyword arguments and keyword parameters, and implementation techniques to make them faster.

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