Stories and Strategies from Converting to TypeScript
summary
Codecademy converts multiple React apps to TypeScript by doing a small initial PR, ramping team knowledge via brown bags and lightning talks, and pairing hands-on with engineers; the codebase starts around 2,000 files and the front-end crew numbers about 20–30 engineers with roughly pairing with every front-end member early on. Tooling relies on Babel’s preset-typescript, typescript-aware ESLint, and Prettier, type checks slow CI a bit, and the incremental approach proves low-disruption and effective.
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chapters (11)
- 0:00Intro
- 1:28Before TypeScript
- 1:54The Team
- 2:11Why TypeScript
- 3:15Hype Train
- 3:40Antifunnel
- 4:26Knowledge sharing
- 4:42Team archetypes
- 6:15Internal presentations
- 7:35Individual interactions
- 8:33Technical details
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