Brief Introduction to ReasonML

on YouTube ↗40m

" summary

Reason introduces a JavaScript-friendly syntax that compiles to JS via BuckleScript, gives compile-time type guarantees (no undefined is not a function runtime type errors), and wires React components through ReasonReact with reducer-style dispatch and pattern matching on algebraic variants. Demonstrations include a working counter, typed CSS-in-JS, IDE instant errors, and interop with existing JS. Facebook reports production use (Messenger migration), fast builds, dead-code elimination, and native compilation targets beyond the web.

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" chapters (14)

1. 0:00Introduction
2. 0:43Motivation
3. 7:55Component
4. 15:53Redux
5. 19:01Pattern Matching
6. 20:21Switch Statements
7. 21:40Why is this so effective
8. 24:39SML
9. 25:24Adoption
10. 27:00Integration
11. 28:29JavaScript Interop
12. 31:41Why JavaScript Interop
13. 33:18Future of ReasonML
14. 34:03Productionready

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