ClojureScript: what are you?

1. ClojureScript what are you? Roman Liutikov
4. http://www.lisperati.com/casting_spels.pdf
5. ((((()))))
6. John McCarthy • AI • LISP • Garbage collection
8. (ns app.core (:require [cljsjs.react-dom :refer [render]])) (def app-component ;; code ) (render app-component (js/document.getElementById "app"))
9. Too many parens? not really ;) (double 5) double(5) Clojure JavaScript
10. Companies using ClojureScript CircleCI Atlassian Cisco eBay ModnaKasta ! …
11. Because Clojure rocks, and JavaScript reaches. — Rich Hickey
12. ClojureScript Release - Rich Hickey https://www.youtube.com/watch?v=tVooR-dF_Ag
13. Why ClojureScript? • Functional programming • Immutable data (mori in JS) • Great standard library + Google Closure Libraries • Interactive development • Robust libraries • Great optimizing compiler (dead code elimination, tree-shaking and more)
14. But it should be slow http://swannodette.github.io/2013/06/10/porting-notchs- minecraft-demo-to-clojurescript/ http://thi.ng/
15. Learn once, use anywhere • Server-side: JVM, Node.js • Client-side: ClojureScript + React.js • Desktop: ClojureScript + Electron • Mobile: ClojureScript + React Native
16. Tools Code • Atom, LightTable, Vim, Emacs, whatever… • Parinfer
17. Tools Build
18. Tools Build • Leiningen (dependencies + Grunt in JS) • Boot (dependencies + Gulp in JS) • Figwheel (Webpack’s HMR in JS) • Devcards (visual interactive development)
20. Tools Debugging • Source maps • Dirac (Chrome DevTools with extra features for CLJS development)
22. Tools Testing • cljs.test • doo (multi env test runner, supports Karma)
23. SPA libraries • Reagent + re-frame • Om • Rum
24. Libraries • clojars.org (NPM in JS) • cljsjs.github.io (for JS deps) • clojurewerkz.org • www.clojure-toolbox.com
25. How to try ClojureScript? • jsbin.com • cljsfiddle.com (Reagent) • clojurescript.net (Web REPL) • planck-repl.org (OSX REPL) • Replete (iOS REPL)
26. ClojureScript for Skeptics - Derek Slager https://www.youtube.com/watch?v=gsffg5xxFQI
27. Where to learn more? • clojurescriptkoans.com • kanaka.github.io/clojurescript/web/synonym.html • cljs.info/cheatsheet • clojuredocs.org • github.com/clojure/clojurescript/wiki • gitter.im/dev-ua/clojure • clojurians.net
28. (questions?) Thanks! @roman01la