1. Elm and Rails Sitting in a Tree

    I-N-T-E-G-R-A-T-I-N-G: Webpacker makes using Elm in your Rails app pain-free.

    Tom Wey and Josh Clayton

  2. Access Ruby Hash Values with Fallbacks for Missing Data

    Find out different ways to access hash values in Ruby and save the dinosaurs at the same time.

    Rob Whittaker

  3. Debugging Why Your Specs Have Slowed Down

    Your test suite used to be lightning fast but now it’s starting to feel a bit sluggish. Before adding CI parallelization, let’s see if there’s any clutter to remove.

    Mike Wenger

  4. Finding the Oldest/Youngest Records Within a Group

    How to find the oldest or most recent record associated with a particular foreign key.

    Jack Wilson

  5. Lean & Maintainable Reports with Heroku Dataclips

    Write testable reports in SQL that don’t erode over time.

    Oli Peate

  6. Tips for Using FactoryGirl Without an ORM

    Exploring how to use FactoryGirl effectively with models backed by plain Ruby objects.

    Oli Peate

  7. Headless Capybara Feature Specs with Chrome

    We’re experimenting with running feature specs using Chrome’s new headless mode. How do we set it up, and how does it compare to Capybara-WebKit?

    Derek Prior

  8. Decorating ActiveRecord

    Avoid some tricky edge cases when decorating ActiveRecord models.

    Joël Quenneville

  9. Chain RSpec Matchers for Improved Test Readability

    Improve test readability by leveraging RSpec’s matcher composition to make multiple assertions with a single matcher.

    Josh Clayton

  10. Slicing up Rails Application.js for Faster Load Times

    How to profile page load performance in Chrome and break out modular JavaScript assets.

    Oli Peate

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