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Capybara is an acceptance test framework for web applications. Learn how to use it with Minitest for integration testing of your Ruby on Rails applicat
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You may have never used Ruby's triple-equals operator. But understanding it is key to unlocking the hidden power of `case`, `rescue` and other Ruby...
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This tutorial shows how to make a Progressive Web App on Rails using the serviceworker-rails gem...
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Under the hood, Active Record has its own private API to build database SQL queries: Arel. For now, let's focus on passing in custom-built Arel...
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Here's a look at some lesser-known Ruby methods that solve specific types of problem very well....
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