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ClojureScript@node
- The document discusses ClojureScript, a Lisp dialect that compiles to JavaScript. It provides an overview of ClojureScript's features like immutability, concurrency, and syntax extensibility through macros. It also summarizes popular ClojureScript tools like Lumo, Calvin, ShadowCLJS, and Macchiato and recommends options for getting started with ClojureScript depending on needs and preferences.
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ClojureScript@node
- 2. - Work atCybozu Startups, inc - Write web apps with Clojure/ClojureScript - Since May 2016
- 3. - http://qiita.com/iku000888 - http://github.com/iku000888 -https://twitter.com/iku000888
- 4. - Number ofexits @ home town station = 2 - Number of exits @ station near work = 2 - (Perceived) Number of exits @ Shibuya - 443
- 6. - Do ClojureScript -Checkout recent ClojureScript tools/templates - Lumo - calvin - macchiato - shadow-cljs - (Optional)Do Clojure(JVM)
- 7. - Programming language -Lisp () () () - Hosted on the JVM - Emits jvm bytecode - Compiler
- 8. - Immutability - Extendsto collections (vectors, maps, sets) - Safely share values - Proper equality semantics - Only need ‘=’ most of the time - No fiddling with ‘==’ or ‘===’ or .equals - Simpler code - Concurrency semantics - No manual locking - Watch-able reference types - Many flavors (on the JVM)
- 9. - User extensiblesyntax - ~=Babel on your fingertips - Many core syntax are macros
- 10. (macroexpand '(when test(prn “foo”))) => (if true (do (prn "foo")))
- 11.
- 12. - Tap intorunning system and incrementally modify it - Main mode of development - Editor integration
- 13. - Backwards compatibility= high priority
- 14. - Almost 10year old since first release
- 15. - Clojure ->JavaScript Compiler - Clojure code works on the browser! - + wherever js runs - Esp. node.js - Inherits Clojure’s value props
- 18. - Pay onlyfor the stuff you use - unused stuff=removed by Closure Compiler - Serves as standard lib - Good stuff - Dom - XhrIo - Crypto - UI Components - And more...
- 19. - Aggressive minification -Dead code elimination - Inlining - ClojureScript emits code that can be advance compiled
- 20. React => good React+Immutability=> double plus good - Om, Reagent, Quiescent, Rum...
- 21. - First release= 2011
- 22. - 2015/8/1 - TheClojureScript compiler can run on JavaScript - On Node!!
- 23. - Bootstrapped ClojureScripton node.js runtime - https://github.com/anmonteiro/lumo - Install with $ npm install -g lumo-cljs
- 24. - ClojureScript buildtool on node.js - Fetch maven artifacts + npm artifacts - Leiningen style project.clj files - https://github.com/eginez/calvin - Install with: $ npm install -g calvin-cljs
- 25. - Node modules= ClojureScript namespaces - Part of the build process - Compiled with :advanced
- 26. - https://github.com/thheller/shadow-cljs - Setupcljs tooling via npm/yarn - JVM/node-jre under the hood - Provides - Nicer build config (milage may vary) - cljs-repl - Hot reloading - Integration with tools in node ecosystem (webpack etc)
- 27. - ClojureScript webstack targetting node.js - https://github.com/macchiato-framework/ - Requires jdk tooling - Provided as template on top of libraries - Smooth first run experience - Good docs
- 28. - Clojure(JVM) - blamedfor slow startup time - Self hosted ClojureScript - Good startup time - Familiar tooling - Use node/npm/yarn - Leiningen/Boot/ClassPath…??
- 29. - Some libscannot be compiled with self hosted cljs(yet) - E.g. clara-rules - Caused by JVM specific assumptions @ compile time - Most tooling requires JVM
- 30. - lumo+calvin - macciato -shadow-cljs
- 31. - Start ClojureScripttoday? - Install lumo and calvin - Use it for daily scripting! - Want minimal hassle jvm tooling4cljs? - Install shadow-cljs - Start building an app with cljs? - Check macchiato
- 32. - Shibuya Lisp -https://lisp.connpass.com/ - Clojure.tokyo - https://www.meetup.com/clojure-tokyo/