Rethinking the View Layer with Components
summary
GitHub reworks ERB into a Ruby class pattern called ActionView Component that renders templates, captures block content, and uses ActiveModel validations to enforce required args (title, color). Tests move from ~6 seconds per controller-rendered case to over 240 times faster unit tests (~25 ms), SimpleCov now reports coverage for view logic, and components ship to production (repository topics and language badges) while keeping progressive enhancement with minimal JS. Primer UI tokens become reusable components.
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chapters (15)
- 0:00Start
- 0:47Existing Ideas
- 3:26Browser Support
- 4:04Progressive Enhancement
- 5:06Primer Resources, tooling, and design quidelines for building interfaces with GitHub's design system
- 8:17Unit Testing
- 10:31Data Flow
- 17:37Implicit Arguments
- 26:40missing keyword: title
- 31:21Implementation
- 31:42Reusability
- 31:55Performance
- 32:28Creativity
- 32:59Standards
- 33:10Code Coverage
