Elm-Friendly Functional Programming For The Web
summary
Quick demo of Elm setup, compilation and tooling: install via npm, use elm-make, Elm Reactor and the Elm package manager. Shows how strict versioning plus the Hindley–Milner type system prevents breaking API and many bugs, including no runtime errors for the examples. Implements records, custom union types and model–view–update with a maybe person model, wired to buttons that toggle a person on stage. A working interactive app compiles and runs in the reactor in roughly 100 lines of code.
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chapters (8)
- 0:00Introduction to Elm
- 2:46Project setup and tooling
- 8:01Language basics and types
- 18:29Data modeling and records
- 25:33Custom types and patterns
- 32:06Handling null with Maybe
- 37:23The Elm architecture (MVU)
- 47:54Resources and Q&A
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