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Immutability In Ruby, Python, JavaScript, and Clojure
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Tero Parviainen
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Slides and video clips from my talk at RuPy 2013
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Immutability In Ruby, Python, JavaScript, and Clojure
1.
Immutabilityin Ruby, Python,
JavaScript, and Clojure @teropa
2.
http://www.flickr.com/photos/53952283@N02/4992136318/
3.
Two Realities
4.
Two Realities
5.
Global Mutable State
6.
Non–global Mutable State
7.
Spot The Wormhole Players Ruby
Python Clojure JavaScript
8.
Primitives Level 1
9.
42
10.
42 + 42 42
+ 42 42 + 42 (+ 42 42)
11.
(Math/abs -42) Math.abs(-42) abs(-42) -42.abs
12.
High Scores 1000 1000
1000 1000 Ruby Python Clojure JavaScript
13.
Strings Level 2
14.
"Am I immutable?"
15.
"Am I immutable?" A
I m u a l ?m i m t b e
16.
JavaScript
17.
Python
18.
Clojure
19.
Ruby
20.
Ruby
21.
Ruby
22.
High Scores 1500 2000
2000 2000 Ruby Python Clojure JavaScript
23.
Collections Level 3
24.
Clojure
25.
Ruby
26.
Ruby ice_nine
27.
Ruby hamster
28.
Python
29.
JavaScript
30.
JavaScript mori
31.
Final Scores 2000 2750
3000 2500 Ruby Python Clojure JavaScript
32.
kthx. @teropa clojurecup.comis.gd/vertxbook
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