ReasonML for Skeptics
summary
ReasonML claims to cut the common “cannot read property of undefined” crashes by adding a sound Hindley‑Milner type system to real JavaScript apps and shows concrete results: Rollbar data names type errors as the top issue, the compiler catches missing reducer cases, and an existing React filter feature is rewritten with polymorphic variants and pattern matching. The demo uses BuckleScript to compile to JS, generates interoperable types with genType, highlights performance via unwrapped arrays, and cites Fastpack benchmarks that are orders of magnitude faster.
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chapters (12)
- 0:00Start
- 1:50Top Ten Errors in Java Script Projects
- 6:09Reason Ml Is One Coherent Platform
- 7:01Fast Compiler
- 9:13Scaffold Themes
- 9:34Demo
- 13:37Why Unwrapped Arrays Are Really Useful
- 15:39Gen Type
- 18:09Pattern Matching
- 22:19Polymorphic Variants
- 23:05Review
- 26:10Ways To Get Started
