Rails - Giant Robots Smashing Into Other Giant Robots

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A JavaScript developer's guide to Rails: What does Composition Over Inheritance mean?

Rails framework code is full of inheritance magic, but your application code doesn’t have to be. Learn how composition makes dependencies explicit, testing easier, and debugging a breeze—using patterns you already know from JavaScript.
Will Larry
January 28, 2026
- Web
- Best Practices
- Ruby
- Rails
- JavaScript
- Development
What Shoulda Matchers Is Actually Doing For You

Rails model specs full of setup and error-message checks? There’s a reason so many teams replace them using shoulda-matchers. We’ll look at what those expectations are doing, how they make your tests more resilient to changes, and a lot less noisy.
Matheus Sales
January 23, 2026
- RSpec
- Rails
- Shoulda
- Ruby
- Testing
A JavaScript developer's guide to Rails: Where Does Everything Come From?

Discover where Rails methods come from and solve the biggest confusion JavaScript developers face when learning Rails.
Will Larry
January 21, 2026
- Web
- Best Practices
- Ruby
- Rails
- JavaScript
- Development
- Learning
Code audits in the days of AI - A new Claude skill

Run a code audit on your Rails app using thoughtbot’s best practices with this new Claude skill.
Jose Blanco
January 20, 2026
This week in #dev (Jan 9, 2026)

Overriding Rails credentials, a helper to submit forms with images and how to count tests with rspec’s –dry-run option.
thoughtbot
January 19, 2026
- This Week In Dev
- TIL
- Testing
- Rails
A JavaScript Developer's Guide to Rails - Series Introduction

Where does current_user come from? Why is there no import? A series for JavaScript developers learning Rails.
Will Larry
January 14, 2026
- Rails
- JavaScript
- Development
- Learning
Prevent the Robocalypse with Claude Code and TDD

Write tests first or watch Claude blow everything up. Your choice.
Louis Antonopoulos
January 12, 2026
- Ruby
- Rails
- AI
- Llm
The Arrange/Act/Assert pattern

Organizing tests for readability.
Justin Toniazzo
December 16, 2025
- Testing
- Development
- Ruby
- Rails
How to design a join code system

Learn the ins and outs of building a game-based join code feature.
Steve Polito
November 10, 2025
- Web
- Development
- Design
- Rails
Extending factory_bot with custom strategies at thoughtbot Open Summit

Learn how to make factory_bot work for your unique product needs. At thoughtbot Open Summit, Neil Carvalho and José Blanco will lead a live, hands-on session on building custom strategies. Learn how teams can extend and adapt factory_bot for complex applications.
Lindsey Christensen
October 28, 2025
- Factory Bot
- Rails
- Events
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