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

EnumerableをRubyで再実装してみた

Sponsored · SiteGround - Reliable hosting with speed, security, and support you can count on. →
Avatar for Masafumi Okura Masafumi Okura
April 12, 2019
Programming
0
1.3k

 EnumerableをRubyで再実装してみた

Avatar for Masafumi Okura

Masafumi Okura

April 12, 2019
Tweet

More Decks by Masafumi Okura

See All by Masafumi Okura
Metaprogramming isn't real, it can't hurt you
Avatar for Masafumi Okura okuramasafumi
0
100
Developing static sites with Ruby
Avatar for Masafumi Okura okuramasafumi
1
370
Why doesn't Ruby have Boolean class - final version
Avatar for Masafumi Okura okuramasafumi
0
370
Reading Rails 1.0 Source Code
Avatar for Masafumi Okura okuramasafumi
0
340
RDoc meets YARD
Avatar for Masafumi Okura okuramasafumi
4
210
Why doesn't Ruby have Boolean class?
Avatar for Masafumi Okura okuramasafumi
0
42
My KaigiEffect at RubyKaigi 2025, part 1
Avatar for Masafumi Okura okuramasafumi
1
92
Writing documentation can be fun with plugin system
Avatar for Masafumi Okura okuramasafumi
0
250
Alba: Why, How and What's So Interesting
Avatar for Masafumi Okura okuramasafumi
0
480

Other Decks in Programming

See All in Programming
Smart Handoff/Pickup ガイド - Claude Code セッション管理
Avatar for rasshii yukiigarashi
0
150
AI Agent の開発と運用を支える Durable Execution #AgentsInProd
Avatar for izumin5210 izumin5210
7
2.3k
フロントエンド開発の勘所 -複数事業を経験して見えた判断軸の違い-
Avatar for Yoichiro Kubo heimusu
7
2.8k
24時間止められないシステムを守る-医療ITにおけるランサムウェア対策の実際
Avatar for kouki.miura koukimiura
1
130
360° Signals in Angular: Signal Forms with SignalStore & Resources @ngLondon 01/2026
Avatar for Manfred Steyer manfredsteyer
PRO
0
140
CSC307 Lecture 10
Avatar for Javier Gonzalez-Sanchez javiergs
PRO
1
660
FOSDEM 2026: STUNMESH-go: Building P2P WireGuard Mesh Without Self-Hosted Infrastructure
Avatar for Date Huang tjjh89017
0
180
Honoを使ったリモートMCPサーバでAIツールとの連携を加速させる！
Avatar for とすり tosuri13
1
180
MDN Web Docs に日本語翻訳でコントリビュート
Avatar for uutan1108 ohmori_yusuke
0
660
CSC307 Lecture 02
Avatar for Javier Gonzalez-Sanchez javiergs
PRO
1
780
なぜSQLはAIぽく見えるのか/why does SQL look AI like
Avatar for florets1 florets1
0
480
QAフローを最適化し、品質水準を満たしながらリリースまでの期間を最短化する #RSGT2026
Avatar for shibayu36 shibayu36
2
4.4k

Featured

See All Featured
AI Search: Implications for SEO and How to Move Forward - #ShenzhenSEOConference
Avatar for Aleyda Solis aleyda
1
1.1k
Claude Code どこまでも/ Claude Code Everywhere
Avatar for nwiizo nwiizo
61
52k
Impact Scores and Hybrid Strategies: The future of link building
Avatar for Tamara Novitovic tamaranovitovic
0
200
Un-Boring Meetings
Avatar for Sebastian Deterding codingconduct
0
200
30 Presentation Tips
Avatar for Ian Lurie portentint
PRO
1
230
SEOcharity - Dark patterns in SEO and UX: How to avoid them and build a more ethical web
Avatar for Sara Fernández Carmona sarafernandez
0
120
WENDY [Excerpt]
Avatar for Tessa Abrams tessaabrams
9
36k
GraphQLの誤解/rethinking-graphql
Avatar for sonatard sonatard
74
11k
How To Stay Up To Date on Web Technology
Avatar for Chris Coyier chriscoyier
791
250k
The Art of Programming - Codeland 2020
Avatar for Erika Heidi erikaheidi
57
14k
KATA
Avatar for Megan Lloyd mclloyd
PRO
34
15k
My Coaching Mixtape
Avatar for mlcsv mlcsv
0
51

Transcript

  1. RejectKaigi2019 LT EnumerableΛRubyͰ࠶࣮૷ͯ͠Έͨ େ૔խ࢙ʢ@okuramasafumiʣ 2019-04-12, Pixiv

  2. EnumerableΛRubyͰ࠶࣮૷ ͯ͠Կ͕͏Ε͍͠ͷʁ

  3. ͕͜͜͏Ε͍͠ʂ • ීஈ࢖Θͳ͍๨Ε͍ͯͨϝιουΛ֮͑Δ • RubyͷදݱྗʹվΊͯײँ͢Δ • eachͱblockͷ࢖͍ํʹशख़Ͱ͖Δ

  4. Pro tip: RubiniusͰ౴͑߹Θͤ

  5. Rubunius͸ศར • Rubinius͸CRubyͱ͸ผͷॲཧܥ • ΄ͱΜͲͷίʔυ͕RubyͰ࣮૷͞Ε͍ͯΔ • CRubyͩͱCݴޠͰ࣮૷͞Ε͍ͯΔEnumerable΋RubyͰॻ͔Ε͍ͯΔͷ Ͱɺ٧·ͬͨΒͪ͜ΒΛݟΔͱΑ͍

  6. ૣ଎΍ͬͯΈΑ͏ʂ

  7. ࠷ޙʹɿ ͜Μͳײ͡ͷ͜ͱΛ ίϛϡχςΟͰ΍Γ͍ͨ

  8. Grow.rb • ઌ೔ୈ0ճΛ։࠵ • ϋϯζΦϯͬΆ͍ελΠϧͰEnumerableΛΈΜͳͰ࠶࣮૷ • ͍Ζ͍Ζ࠶࣮૷ͯ͠ΈͨΓ࣮ݧͯ͠ΈͨΓͯ͠Rubyͷ஌ࣝΛਂΊ͍͖ͯͨ ͍ • https://growrb.connpass.com/

  9. ࣍͸Grow.rbͰ ͓ձ͍͠·͠ΐ͏ʂ