Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Recap Pointfree Vol. 1~3
Search
freddi(Yuki Aki)
October 25, 2020
Programming
1
830
Recap Pointfree Vol. 1~3
https://gist.github.com/freddi-kit/112b3d13c6660339ddc85bd05ffc3c2b
に Vol 3 で話す予定だったものあり
freddi(Yuki Aki)
October 25, 2020
Tweet
Share
More Decks by freddi(Yuki Aki)
See All by freddi(Yuki Aki)
輝け俺のViewController 〜海外iOSカンファレンス登壇編〜
freddi
4
280
Deep Dive into "any" and "some"
freddi
3
1.5k
挑戦!ISUCON de Server-side Swift 〜タイムゾーンには気をつけろ〜
freddi
0
1.8k
意外と知られてないXcode13の新しい参照カウンタ最適化オプションの挙動
freddi
2
150
How to develop SIL Optimizer in Swift Language
freddi
0
350
SwiftコンパイラがSwiftで開発できるようになる話
freddi
3
650
知ろう! ShazamKit
freddi
1
210
Swift Optimizing at Compiler World
freddi
2
840
社内版SwiftコンパイラにContributeするまで
freddi
0
110
Other Decks in Programming
See All in Programming
技術的負債の正体を知って向き合う
irof
0
190
アメ車でサンノゼを走ってきたよ!
s_shimotori
0
230
私達はmodernize packageに夢を見るか feat. go/analysis, go/ast / Go Conference 2025
kaorumuta
2
600
AIと人間の共創開発!OSSで試行錯誤した開発スタイル
mae616
1
670
「ちょっと古いから」って避けてた技術書、今だからこそ読もう
mottyzzz
11
6.9k
The Past, Present, and Future of Enterprise Java
ivargrimstad
0
420
AI Agent 時代的開發者生存指南
eddie
3
1.8k
実践Claude Code:20の失敗から学ぶAIペアプログラミング
takedatakashi
15
5.6k
Android16 Migration Stories ~Building a Pattern for Android OS upgrades~
reoandroider
0
130
詳しくない分野でのVibe Codingで困ったことと学び/vibe-coding-in-unfamiliar-area
shibayu36
3
5.1k
はじめてのDSPy - 言語モデルを『プロンプト』ではなく『プログラミング』するための仕組み
masahiro_nishimi
2
610
登壇は dynamic! な営みである / speech is dynamic
da1chi
0
340
Featured
See All Featured
Keith and Marios Guide to Fast Websites
keithpitt
411
23k
Evolution of real-time – Irina Nazarova, EuRuKo, 2024
irinanazarova
9
980
Designing for Performance
lara
610
69k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
27k
Connecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]
tammyeverts
10
600
Building a Modern Day E-commerce SEO Strategy
aleyda
44
7.8k
Embracing the Ebb and Flow
colly
88
4.9k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
33
2.5k
Product Roadmaps are Hard
iamctodd
PRO
54
11k
Designing Experiences People Love
moore
142
24k
4 Signs Your Business is Dying
shpigford
185
22k
The Invisible Side of Design
smashingmag
302
51k
Transcript
2020/10/25 Recap Pointfree Vol. 1~3 iOSΞϓϦ։ൃͷͨΊͷFunctional Architectureใڞ༗ձ
ࠓճͷRecapͷΓํ • Pointfree Episode Vol 1 ~ 3 ͷ༰Λ͍͖ͬͯ·͢ •
ͨͩ͠ɺͯ͢Δͷ͕࣌ؒڐ͢ݶΓ • ొஃऀͷPlaygroundͰRecapͨ͠Γ༡ΜͰ͍͖·͢ • ղઆ͠ͳ͕ΒΔͷͰʮ͜͏͍͏ͷͰ͖Δʁʯ ͱ͔৭ʑʑΛೖΕΔͷ͓͢͢ΊͰ͢
Pointfree ͱ • ϓϩάϥϛϯάݴޠSwiftʹؔ͢ΔಈըͷγϦʔζ • ؔܕϓϩάϥϛϯάͱSwiftʹ͍ͭͯղઆ • Ұ෦Τϐιʔυߪಡ͕ඞਢ • https://www.pointfree.co/
“pointfree” ͱ • pointfree ͱ͍͏୯ޠࣗମʹ͍ͭͯҙຯ͕͋Δ
pointfree-style • Haskellͷؔͷॻ͖ํʢελΠϧʣ • … So a 'points-free' definition of
a function is one which does not explicitly mention the points (values) of the space on which the function acts. • … ͳͷͰɺʮpointfreeʯ ʹΑΔఆٛͱ͕ؔ࡞༻ ͢ΔۭؒͰɺʹ໌ࣔతʹݴٴ͠ͳ͍ఆٛΛ͞ ͍ͯ͠·͢ɻ
pointfree-style • ͨͱ͑ɺHaskell ͷ͜ͷॻ͖ํ f x = x + 1
Sun
pointfree-style • (point) ʹݴٴ͠ͳ͍ॻ͖ํͩͱ͜͏ॻ͚Δ • ͜Ε͕ઌఔͷ f ͷpointfree style f
= (+ 1) Sun
“pointfree” ͱ • ༨ஊͰ͋ΓDeep Dive͢Δͱ͕͘ͳΔͷͰׂѪ
ࠓ͢Pointfree ͷ Episode ʹ͍ͭͯ • Vol 1. Functions • Vol
2. Side Effects • Vol 3. UIKit Styling with Functions
Vol 1. Functions • ͪΐͬͱมΘͬͨελΠϧͷؔʹؔ͢Δॻ͖ํ • ͜Ε͔Βͷ Episode ΛݟΔ্Ͱඞਢͷ༰ •
৽͍͠ԋࢉࢠͷհ • |> ʹΑΔؔద༻, >>> ʹΑΔؔͷ߹
Vol 1. Functions • ݸਓతͳײಈ • ֤ԋࢉࢠʹΑΔ, left-to-right ͳίʔυͷ࡞ •
ؔΛ “Composition” ͢Δͱ͍͏ߟ͑ํ
Vol 2. Side Effects • ʮ෭࡞༻Λ੍ޚ͢ΔʯʹϑΥʔΧεͨ͠ Episode • print ͷྫ
• NumberFormatter ͷྫ • ԋࢉࢠ >=> ʹΑΔEffectΛ࣋ͬͨؔͷ߹ • ԋࢉࢠ <> ʹΑΔؔͷ߹ɺ<> ͷ ΦʔόʔϥΠυ
Vol 3. UIKit Styling with Functions • ࠓ·Ͱशͬͨ͜ͱΛͲͷΑ͏ʹ׆͔ͤΔ͔ʁ • ࣮ࡍʹίʔυ͕Massive
ʹͳΓͦ͏ͳUIViewͷྫ
ࢀߟࢿྉ • https://www.pointfree.co/ • https://wiki.haskell.org/Pointfree