Rich Hickeyの有名なプレゼン"Simple Made Easy"を簡単に解説(*> ᴗ •*)ゞ Clojureの基本的な設計思想を理解しよう!

1. "Simple Made Easy" Made Easy"Simple Made Easy" Made Easy
ClojureClojure

2. lagénorhynquelagénorhynque
(defprofile lagénorhynque
:id @lagenorhynque
:reading "/laʒenɔʁɛ̃k/"
:aliases [" "]
:languages [Clojure Haskell English français]
:interests [programming language-learning law mathematics]
:commits ["github.com/lagenorhynque/duct.module.pedestal"]
:contributes ["github.com/japan-clojurians/clojure-site-ja"])

3. ClojureClojure (*> ᴗ •*)(*> ᴗ •*)
clojure
tips ?
77

4. 1. "simple" "easy"
2. Simple Made Easy
3. "simple" "easy"
4. "simple" "easy"
5. "simple"
6. "simple"
7. Clojure "simple"

5. "simple" "easy""simple" "easy"

6. Clojure "simple"Clojure "simple"
"easy"
Clojure "simple"

7. Simple Made EasySimple Made Easy

8. (( ))
Clojure
"simple"
( Clojurian )
cf. ( )
Simple Made EasySimple Made Easy Strange Loop 2011Strange Loop 2011
Rich Hickey
Simplicity Matters Rails Conf 2012
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9. "Simple Made Easy""Simple Made Easy"
simple
"simple" "easy"
"simple" "easy" ?
Word Power Made Easy

10. "simple" "easy""simple" "easy"

11. "simple""simple"
< simplex (= sim­ + plex)
simplex
:
/
: (= com­ + plex)
:
simple
complex

12. "easy""easy"
(= + ­y) < aise/eise < adjacens
adjacens (cf. adjacent)
:
( ) (
) ( )
/
:
: easy
easy ease
hard

13. "simple" "easy""simple" "easy"

14. "simple" "easy""simple" "easy"
simple/complex, easy/hard 2
easy simple !
complex simple
Rich Hickey
simple or complex
simple or easy

15. "easy but complex" vs "simple but hard""easy but complex" vs "simple but hard"
easy complex (= not simple)
easy complex
complex
simple hard (= not easy)
hard simple
simple

16. "simple""simple"

17. (complexity)

18. "simple""simple"
"simple"
/

19. "simple""simple"

20. "simple"
"complex" ( )
"simple"
(abstract)
(draw away)
who, what, when, where, why, how
"simple" (simplify)
complect
abstract

21. Clojure "simple"Clojure "simple"

22. ;; Common Lisp: "complect"
(defun fizzbuzz (n)
(let ((fizzp (zerop (mod n 3)))
(buzzp (zerop (mod n 5))))
(cond ((and fizzp buzzp) "Fizz Buzz")
(buzzp "Buzz")
(fizzp "Fizz")
(t n))))
;; Clojure: "simple"
(defn fizzbuzz [n]
(let [fizz? (zero? (mod n 3))
buzz? (zero? (mod n 5))]
(cond
(and fizz? buzz?) "Fizz Buzz"
buzz? "Buzz"
fizz? "Fizz"
:else n)))

23. "complect"
( ) "simple"

24. "complect"
atom, ref, agent
"simple"

25. "complect"
who ( ) what (
) "complect"
"simple"

26. what ( ) who ( )
"complect"
"simple"
e.g. core.async

27. "simple""simple"
Simple Made Easy / !
Clojure !

28. Further ReadingFurther Reading
Simple Made Easy
matthiasn/talk-transcripts >
Hickey_Rich/SimpleMadeEasy.md
Clojure Simple Made Easy -
Simplicity Matters
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Clojure Design Decisions
Clojure - Clojure core.async Channels