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Issue 373 — November 2, 2017
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Avdi Grimm
A critique of the common advice to encapsulate business domain actions in “Service Objects”.
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Samuel Giddins
Bundler now has an improved, faster resolver and bundle install is now almost as fast as bundle check when no installation is needed. There’s also news about Bundler 2 here.
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Practical Artificial Intelligence
An example of using PyCall to leverage Python-based machine learning libraries.
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Semaphore Sponsored
Semaphore Boosters automatically parallelize large Ruby test suites with split-second precision. Deliver working code faster — no configuration required.
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Thomas Leitner
Knowing how much memory built-in types, structs, and objects consume in Ruby can help you design your code with memory in mind.
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Kevin Sylvestre
Transactions in Rails can be tricky to master as there are situations where they can go awry and fail to provide atomicity, as seen here.
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Samuel Giddins
Brings the vendored Bundler up to the latest version (above), signin and signout commands added, and a wide variety of minor enhancements and bug fixes.
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Jobs
In brief
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