Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Ruby_through_Reserved_Words.pdf

Avatar for Yukihiro Matsumoto Yukihiro Matsumoto
July 02, 2019
Programming
0
120

 Ruby_through_Reserved_Words.pdf

Avatar for Yukihiro Matsumoto

Yukihiro Matsumoto

July 02, 2019
Tweet

More Decks by Yukihiro Matsumoto

See All by Yukihiro Matsumoto
30 Years of Ruby
Avatar for Yukihiro Matsumoto matz
0
410
mruby VM
Avatar for Yukihiro Matsumoto matz
0
74
Contribute to Ruby (RubyKaigi 2022)
Avatar for Yukihiro Matsumoto matz
0
220
Ruby after 25 years
Avatar for Yukihiro Matsumoto matz
1
1.2k
What is software made of?
Avatar for Yukihiro Matsumoto matz
0
640
Streem
Avatar for Yukihiro Matsumoto matz
8
3.7k
world-of-languages.pdf
Avatar for Yukihiro Matsumoto matz
8
1.3k
Ruby Everywhere
Avatar for Yukihiro Matsumoto matz
11
120k

Other Decks in Programming

See All in Programming
Railsアプリケーションと パフォーマンスチューニング ー 秒間5万リクエストの モバイルオーダーシステムを支える事例 ー Rubyセミナー 大阪
Avatar for Hayato OKUMOTO falcon8823
4
950
なぜ「共通化」を考え、失敗を繰り返すのか
Avatar for Rinchoku rinchoku
1
530
LT 2025-06-30: プロダクトエンジニアの役割
Avatar for Keisuke Yamamoto yamamotok
0
470
Java on Azure で LangGraph！
Avatar for Kohei Saito kohei3110
0
170
Google Agent Development Kit でLINE Botを作ってみた
Avatar for Kento.Yamada ymd65536
2
190
Webの外へ飛び出せ NativePHPが切り拓くPHPの未来
Avatar for Takuya Katsusa takuyakatsusa
2
370
設計やレビューに悩んでいるPHPerに贈る、クリーンなオブジェクト設計の指針たち
Avatar for panda_program panda_program
6
1.4k
来たるべき 8.0 に備えて React 19 新機能と React Router 固有機能の取捨選択とすり合わせを考える
Avatar for Yuka O’oka oukayuka
2
860
都市をデータで見るってこういうこと　PLATEAU属性情報入門
Avatar for nokonoko1203 nokonoko1203
1
570
データの民主化を支える、透明性のあるデータ利活用への挑戦 2025-06-25 Database Engineering Meetup#7
Avatar for Kentaro Yoshida y_ken
0
320
XSLTで作るBrainfuck処理系
Avatar for MakKi makki_d
0
210
プロダクト志向ってなんなんだろうね
Avatar for RightTouch righttouch
PRO
0
160

Featured

See All Featured
Building Applications with DynamoDB
Avatar for Matt Wood mza
95
6.5k
Docker and Python
Avatar for Tania Allard trallard
44
3.4k
Become a Pro
Avatar for Speaker Deck speakerdeck
PRO
28
5.4k
The Art of Programming - Codeland 2020
Avatar for Erika Heidi erikaheidi
54
13k
Measuring & Analyzing Core Web Vitals
Avatar for Philip Tellis bluesmoon
7
490
Rebuilding a faster, lazier Slack
Avatar for samanthasiow samanthasiow
82
9.1k
How to Ace a Technical Interview
Avatar for Jacob Kaplan-Moss jacobian
277
23k
GitHub's CSS Performance
Avatar for Jon Rohan jonrohan
1031
460k
Why Our Code Smells
Avatar for Brandon Keepers bkeepers
PRO
337
57k
Facilitating Awesome Meetings
Avatar for Lara Hogan lara
54
6.4k
Done Done
Avatar for chrislema chrislema
184
16k
Fashionably flexible responsive web design (full day workshop)
Avatar for Andy Clarke malarkey
407
66k

Transcript

  1. Powered by Rabbit 2.2.1 Ruby through Reserved Words Heroku Ruby

    Association Yukihiro "Matz" Matsumoto まつもとゆきひろ @yukihiro_matz

  2. Powered by Rabbit 2.2.1 　 Ruby has 41 reserved words

  3. Powered by Rabbit 2.2.1 　 Each reflects (early) design decisions

  4. Powered by Rabbit 2.2.1 　 The story behinds the words

  5. Powered by Rabbit 2.2.1 　 begin/end

  6. Powered by Rabbit 2.2.1 　 Comb Style Indentation

  7. Powered by Rabbit 2.2.1 　 Inherited from Eiffel

  8. Powered by Rabbit 2.2.1 　 along with rescue, ensure, retry

  9. Powered by Rabbit 2.2.1 　 break/next/redo

  10. Powered by Rabbit 2.2.1 　 not continue

  11. Powered by Rabbit 2.2.1 　 From Perl (shorter)

  12. Powered by Rabbit 2.2.1 　 class/def

  13. Powered by Rabbit 2.2.1 　 From Python

  14. Powered by Rabbit 2.2.1 　 module

  15. Powered by Rabbit 2.2.1 　 Lisp (Flavors)

  16. Powered by Rabbit 2.2.1 　 Mix-in

  17. Powered by Rabbit 2.2.1 　 if/else/elsif

  18. Powered by Rabbit 2.2.1 　 elsif

  19. Powered by Rabbit 2.2.1 　 elseif, elif, elsif

  20. Powered by Rabbit 2.2.1 　 The shortest pronounceable

  21. Powered by Rabbit 2.2.1 　 then

  22. Powered by Rabbit 2.2.1 　 The stop words

  23. Powered by Rabbit 2.2.1 　 then and class methods

  24. Powered by Rabbit 2.2.1 　 unless

  25. Powered by Rabbit 2.2.1 　 From Perl

  26. Powered by Rabbit 2.2.1 　 No elsif or elsunless

  27. Powered by Rabbit 2.2.1 　 while

  28. Powered by Rabbit 2.2.1 　 Simple loop

  29. Powered by Rabbit 2.2.1 　 for/in

  30. Powered by Rabbit 2.2.1 　 From Python?

  31. Powered by Rabbit 2.2.1 　 until

  32. Powered by Rabbit 2.2.1 　 From Perl

  33. Powered by Rabbit 2.2.1 　 true/false/nil

  34. Powered by Rabbit 2.2.1 　 Truthy and Falsy

  35. Powered by Rabbit 2.2.1 　 Three value model

  36. Powered by Rabbit 2.2.1 　 Inspired by Lisp

  37. Powered by Rabbit 2.2.1 　 and/or/not

  38. Powered by Rabbit 2.2.1 　 From Perl

  39. Powered by Rabbit 2.2.1 　 Only for precedence

  40. Powered by Rabbit 2.2.1 　 do/yield

  41. Powered by Rabbit 2.2.1 　 The block

  42. Powered by Rabbit 2.2.1 　 From CLU (1970s, MIT)

  43. Powered by Rabbit 2.2.1 　 The biggest invention of Ruby

  44. Powered by Rabbit 2.2.1 　 rescue/ensure/retry

  45. Powered by Rabbit 2.2.1 　 Exception handling

  46. Powered by Rabbit 2.2.1 　 Inspired by Eiffel

  47. Powered by Rabbit 2.2.1 　 Icon (1970s, U of Arizona)

  48. Powered by Rabbit 2.2.1 　 Success/Failure model

  49. Powered by Rabbit 2.2.1 　 return

  50. Powered by Rabbit 2.2.1 　 From C

  51. Powered by Rabbit 2.2.1 　 Multiple values (Tuple)

  52. Powered by Rabbit 2.2.1 　 self/super

  53. Powered by Rabbit 2.2.1 　 Smalltalk

  54. Powered by Rabbit 2.2.1 　 alias/undef

  55. Powered by Rabbit 2.2.1 　 From Sather (1980s, UCB)

  56. Powered by Rabbit 2.2.1 　 BEGIN/END

  57. Powered by Rabbit 2.2.1 　 From Awk

  58. Powered by Rabbit 2.2.1 　 Not recommendation anymore

  59. Powered by Rabbit 2.2.1 　 __FILE__/__LINE__

  60. Powered by Rabbit 2.2.1 　 From C (cpp)

  61. Powered by Rabbit 2.2.1 　 __ENCODING__

  62. Powered by Rabbit 2.2.1 　 From Ruby1.9 (encoding)

  63. Powered by Rabbit 2.2.1 　 UCS vs CSI

  64. Powered by Rabbit 2.2.1 　 Unicode

  65. Powered by Rabbit 2.2.1 　 BDFL

  66. Powered by Rabbit 2.2.1 　 Benevolent Dictator For Life

  67. Powered by Rabbit 2.2.1 　 How to make decisions

  68. Powered by Rabbit 2.2.1 　 Scope Background Motivation

  69. Powered by Rabbit 2.2.1 　 Committee

  70. Powered by Rabbit 2.2.1 　 Voting

  71. Powered by Rabbit 2.2.1 　 A ship would climb a

    mountain with many captains

  72. Powered by Rabbit 2.2.1 　 too many cooks spoil the

    broth