Ruby - Giant Robots Smashing Into Other Giant Robots

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Attending and speaking at Haggis Ruby

thoughtbot is heading to Haggis Ruby in Glasgow on April 23-24. Come find us.
Rob Whittaker
March 31, 2026
- Events
- Ruby
Meet Duck Typer: your new duck typing friend

Keep the beauty of duck typing with no annotations while still catching missing methods, mismatched signatures, and accidental drift across classes.
Thiago Araújo Silva
March 23, 2026
- RSpec
- Minitest
- Testing
- Ruby
- OOP
- Development
A JavaScript developer's guide to Rails: Authorization with Pundit

Learn how Pundit authorization actually works in Rails, from request flow to policy scopes, with practical examples for JavaScript developers.
Will Larry
February 18, 2026
- Rails
- Authorization
- Pundit
- Ruby
- Policies
props_template 1.0: A high performance, more opinionated jbuilder replacement

props_template 1.0: A high performance, more opinionated jbuilder replacement
Johny Ho
February 13, 2026
- Rails
- Performance
- Development
- Ruby
A JavaScript developer's guide to Rails: ActiveRecord Fundamentals

Learn how Rails ActiveRecord differs from JavaScript ORMs and why the database-first approach eliminates boilerplate.
Will Larry
February 4, 2026
- Web
- Best Practices
- Ruby
- Rails
- JavaScript
- Development
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
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
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