Greetings! I hope your week went great! Here’s new Ruby news digest.

Learn about Big-O notation with Ruby, backward-compatible database migrations, check what’s behind the magic of Ruby DSLs and more.

Guides

  • Exploring Big-O Notation With Ruby

Tutorial about ‘Big O’ notation that is used to express algorithmic complexity 

  • Error handling with Monads in Ruby

Learn why monads a nice way to handle tracking the success or failure of calls in your app and how to do that

  • Backward-compatible database migrations

Guide, based on the real story about the database migrations on live apps

  • Handling Ruby 2.7 deprecations warnings

Learn how to deal with Ruby 2.7 deprecations warnings in this tutorial

  • Pay No Attention: Behind the Magic of Ruby DSLs

Check the tutorial about method_missing, one of the sharper knives in Ruby’s metaprogramming drawer

  • Dockerizing a Ruby on Rails Application

Learn how to use Docker with Rails

  • Gemifying your style guide to DRY your CSS

Rails can really help you even with CSS

Articles

Rails creator talks about his relationship with Ruby, and why single page apps, microservices, and standups are not for him

  • What kinds of Rails tests I write and what kinds I don’t

Skilled developer’s throughts about tests in Rails

Podcast

  • 306: Ask For The Job with Brian Mariani (Part II)

In this series, Brian Mariani, founder of Mirror Placement, a Ruby on Rails focused recruiting firm, shares her knowledge on financial negotiations during the job interview

Updates

Popular code coverage analysis tool for Ruby

A Ruby wrapper to Amazon Product Advertising API 5.0

This is an implementation of the command pattern for Ruby with ActiveModel::Validations inspired by the interactor gem





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