ClojureScript: Lisp's Revenge
summary
ClojureScript compiles Clojure to JavaScript using the Google Closure Compiler and aims for production-grade output, often emitting 2 lines of JS for trivial programs and producing merged source maps that survive advanced compilation. Benchmarks show about ~10% slower than hand-written JS on a Notch demo, compile times are incrementally fast, and the project reports ~2,300 GitHub watchers and 58 contributors. It ships core.async CSP for async programming (used to implement a 200-line autocomplete replacing a 500–600-line mutable JS version) and is adding optional typing.
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chapters (11)
- 0:00Start
- 3:38Introduction to Closure
- 4:23Typescript
- 5:40Google Closure Compiler
- 7:19What About Compile Times
- 11:55Semantics
- 12:26Lexical Scoping
- 12:40Mutable Locals
- 16:44Uniform Iteration
- 20:30Destructuring Assignment
- 29:42Parametric Polymorphism
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