Don't fear the paren! 8 reasons you should give Clojure a try

Transcript

1. ( ) DON’T FEAR THE PAREN! 8 reason you should give Clojure a try
2. “2014 is the year of clojure” Federic Gala i
3. Uncle Bo “it might be the seed that starts the process towards the last programming language”
4. 1 functional
5. •Immutable, persistent data structures •first-class functions •dynamic polymorphism
6. “object orientation is overrated”
7. “mutable stateful objects are the new spaghetti code” All data structures immutable & persistent
8. “It is better to have 100 functions operate on one data structure than to have 10 functions operate on 10 data structures." Alan J. Perli Many functions defined on few primary data structures
9. “polymorphism is a good thing” protocols for class polymorphism, multimethods for custom hierarchies
10. 2 LISP
12. •(Almost) no syntax •code is data, let’s do macros! •not constrained by backwards compatibility
13. 3 on the jvm
14. •embraces the jvm as a platform •fast! almost as fast as java •tons of high quality libraries •mature echosystem
15. 4 concurrency
16. moore’s law is over
17. threads & locks are a mess
18. the actor model was designed to address the problems of distributed programs
19. •immutable data can be shared freely •atoms •transactional references (stm) •async agents •csp with core.async
20. clojurescript 5
21. javascript is everywhere
22. javascript is not very robust
23. clojurescript to the rescue
24. •interoperates with javascript •brings much of clojure goodness to the js world (incl. core.async!) •uses google closure optimizations
25. 6 tools
26. •nrepl •leiningen •editors (emacs, vim, light table, eclipse, intellij, netbeans) •testing (clojure.test, speclj, midje, test.check)
27. 7 echosystem
28. •core.typed optional type system •core.logic for logic programming •om (clojurescript + facebook react) •overtone (clojure + supercollider)
29. •rapidly evolving web stack based on ring •immutant (jboss as7 + ring) •datomic •http-kit
30. 8 community
31. •vivid •inclusive •tons of tutorials and documentation
32. thanks!