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
Head First Golang Image Package
Search
Seiji Takahashi
November 13, 2018
Programming
2
10k
Head First Golang Image Package
Talk session @ golang.tokyo #19
Seiji Takahashi
November 13, 2018
Tweet
Share
More Decks by Seiji Takahashi
See All by Seiji Takahashi
Go Backends for frontends with GraphQL and gRPC
timakin
6
4k
Design Pattern for Image and Text Composition in Go
timakin
5
6.7k
Golang API Testing the HARD way
timakin
13
6.7k
React Native Beyond Prototype
timakin
2
1.6k
Performance Optimization on Google AppEngine
timakin
5
6.4k
testcache.pdf
timakin
1
160
How Go cache
timakin
1
92
How Go cache tests
timakin
1
3.2k
A/Bテスト機構がもたらす 大胆な開発体制及び ゆるやかなアプリ体験の変化 / Architecture and benefits of AB-test allocation system.
timakin
4
7.8k
Other Decks in Programming
See All in Programming
技術的負債で信頼性が限界だったWordPress運用をShifterで完全復活させた話
rvirus0817
1
1.3k
STUNMESH-go: Wireguard NAT穿隧工具的源起與介紹
tjjh89017
0
330
Gemini CLIの"強み"を知る! Gemini CLIとClaude Codeを比較してみた!
kotahisafuru
3
970
The State of Fluid (2025)
s2b
0
120
Amazon Q CLI開発で学んだAIコーディングツールの使い方
licux
3
180
それ CLI フレームワークがなくてもできるよ / Building CLI Tools Without Frameworks
orgachem
PRO
17
3.8k
Webinar: AI-Powered Development: Transformiere deinen Workflow mit Coding Tools und MCP Servern
danielsogl
0
110
なぜあなたのオブザーバビリティ導入は頓挫するのか
ryota_hnk
5
590
CEDEC 2025 『ゲームにおけるリアルタイム通信への QUIC導入事例の紹介』
segadevtech
3
820
ライブ配信サービスの インフラのジレンマ -マルチクラウドに至ったワケ-
mirrativ
1
130
管你要 trace 什麼、bpftrace 用下去就對了 — COSCUP 2025
shunghsiyu
0
380
画像コンペでのベースラインモデルの育て方
tattaka
3
1.5k
Featured
See All Featured
A better future with KSS
kneath
239
17k
Documentation Writing (for coders)
carmenintech
73
5k
What's in a price? How to price your products and services
michaelherold
246
12k
CSS Pre-Processors: Stylus, Less & Sass
bermonpainter
358
30k
Testing 201, or: Great Expectations
jmmastey
45
7.6k
jQuery: Nuts, Bolts and Bling
dougneiner
63
7.8k
Stop Working from a Prison Cell
hatefulcrawdad
271
21k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
23
1.4k
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
addyosmani
7
800
Building Adaptive Systems
keathley
43
2.7k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
31
2.2k
The MySQL Ecosystem @ GitHub 2015
samlambert
251
13k
Transcript
Head First Golang image package @__timakin__ golang.tokyo#19
SEIJI TAKAHASHI
None
ΞδΣϯμ *NBHFύοέʔδͷհ ࣮ྫͰֶͿ*NBHFύοέʔδ ը૾ͷ߹ɾՃ ը૾ͱจࣈͷ߹
QBDLBHFl*NBHFz w %ը૾Λѻ͏ͨΊͷύοέʔδ w +1( 1/( (*'ʹରԠ w Ͱ͖Δ͜ͱ w
৭ใऔಘ w 1PJOU 3FDUBOHMFͷૢ࡞ w ݁߹ॲཧʢESBXʣ w ϑΥʔϚοτͷσίʔυ
ྫʣͷ࢛֯ܗΛඳը
ϞβΠΫ γϟʔϓௐ ໌Δ͞ௐ ͳͲɺେମΓ͍ͨ͜ͱͰ͖Δ͕ ίʔυྔ͕ଟ͗͢ΔͷͰׂѪ
ͱ͍͏͔
ؙ࢛֯ͷඳըͱ͔ Ṗͷ৭ௐͱ͔
ͦΜͳ͜ͱͨͯ͘͠ ͜͜ʹ͖ͯ·͔͢ʁ
࣮ફͯ͠Έ·͠ΐ͏ʂ
ը૾ͷ߹ɾՃ
ͱ͜ΖͰօ͞Μ
!EFFFFU͞Μɻ ࠃͰϚΠΫϩαʔϏεͱ ͍͑͜ͷํɻ
Ͱ͕͢ɺ
ˌEFFFFU෩
None
खʹ࣋ͬͨΦϒδΣΫτʢʣΛ தԝʹਾ͑ͳ͕Β ࣸਅΛࡱΔࡱӨٕ๏ʢʁʣ
!?
खʹ࣋ͬͨΦϒδΣΫτʢʣΛ தԝʹਾ͑ͳ͕Β ࣸਅΛࡱΔࡱӨٕ๏ʢʁʣ
ͦΜͳʹखʹ͓͠ΌΕͳ Λ࣋ͭػձͳ͍
୭Ͱख๏Λ࠶ݱͰ͖Δͱศར
None
ɿW
Γ͍ͨ͜ͱ w Ͱ͍͍ײ͡ͷงғؾΛग़͍ͨ͠ w ͦΕΛखʹ࣋ͬͨঢ়ଶͰதԝʹఴ͍͑ͨ w ʹϑΥʔΧε͍ͯ͠Δ෩ʹ͍ͨ͠
ඞཁͳͷ w खɺɺഎܠ
ΦϦδφϧ
ඞཁͳͱ͜Ζ
దͳഎܠΛ୳͢
ݟ͚ͭΔ
࣮ w ྆ը૾ͷಡΈࠐΈ w എܠʹదͳ΅͔͠ΛೖΕΔ w खͷը૾Λਃ͠༁ఔʹαΠζௐ͢Δ w खट͕ࠨԼʹདྷΔΑ͏ʹͬ͢ͱ߹ w
ϑΝΠϧग़ྗ
HJUIVCDPNEJTJOUFHSBUJPOJNBHJOH w JNBHFύοέʔδͷϥούʔ w ΅͔͠໌ௐ͕ͷ͍͢͝؆୯ʹͰ͖Δ
ਃ͠༁ఔͷαΠζௐ
ͬ͢ͱࠨԼʹ߹
ग़ྗʜ
None
ը૾ͷ߹ɾՃ w HJUIVCDPNEJTJOUFHSBUJPOJNBHJOHΛ͏ ͱ͍ͩͿָʹ΅͔͠ͳͲΛೖΕΒΕΔ w ߹ͷࡍج४͕ࠨ্Ͱ͋Δ͜ͱʹҙ w ਖ਼༧֎ͷͦΕͬΆ͞ʹͳͬͨ
ˠਅ໘ͳ
αʔϏεӡ༻தɺ Ϛʔέࢪࡦͱͯ͠0(1ը૾Λ ࡞͢Δ͜ͱ͕͋ΔͷͰʁ
ը૾ͱจࣈͷ߹
Γ͍ͨ͜ͱ w 0(1എܠը૾ʹจࣈΛ߹͢Δ w ҙͷจࣈྻΛҙͷϑΥϯτͰɺ దͳҐஔʹදࣔ͢Δ
ૉࡐ
࣮ w ҙͷϑΥϯτΛಡΈࠐΉ w ͦͷϑΥϯτͰςΩετΛҙͷҐஔʹඳը w എܠͱॏͶ߹Θͤͯॻ͖ग़͠
HJUIVCDPNHPMBOHGSFFUZQFUSVFUZQF w ҙͷϑΥϯτͰςΩετΛҙͷҐஔʹग़͢ʹɺ ௨ৗͷը૾ՃͰෆՄɻ w GSFFUZQFύοέʔδΛ͏ɻ
ϑΥϯτͷಡΈࠐΈ
എܠΛॻ͖ग़͓ͯ͘͠
GPOU%SBXFSΛͬͨςΩετඳը
ग़ྗʜ
ग़ྗʜ
ը૾ͱจࣈͷ߹ w ϑΥϯτҐஔௐΛॊೈʹ͍ͨ͠߹ɺ GSFFUZQFύοέʔδͱGPOU%SBXMFSͷ߹Θٕͤ Ͱ͍͚Δ w ը૾ͷͲͷҐஔʹදࣔ͢Δ͔ɺจࣈͷંΓฦ͠ Ͳ͏͢Δ͔దٓௐͷඞཁ͋Γ
·ͱΊ JNBHFͰ৭ɾେ͖͞ͳͲ͕؆୯ʹऔಘͰ͖Δ ϥούʔΛ͑Ճ؆୯ ߹ͷ߹࠲ඪɾॻ͖ग़͠ॲཧͷ࣮͕ར༻έʔεʹԠ͡ ͯมΘͬͯ͘ΔͷͰҙͷඞཁ͋Γ
͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ