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
Stringをどうにかする / Managing Solidity String
Search
Ryo Manzoku
November 29, 2019
Programming
0
1.3k
Stringをどうにかする / Managing Solidity String
2019-11-29 blockchain.tokyo#23 Dapp開発Special
https://blockchain-tokyo.connpass.com/event/154664/
Ryo Manzoku
November 29, 2019
Tweet
Share
More Decks by Ryo Manzoku
See All by Ryo Manzoku
ブロックチェーンゲーム開発におけるチェーンの選び方 / How to select a blockchain for BCG
rmanzoku
0
560
NFTを取り巻く技術要素とAWS利活用 / Technology and AWS of NFT
rmanzoku
0
930
NFTを中心とした新しいゲームの形 / The new approach of gaming with NFT
rmanzoku
0
430
NFTへの招待 / Invitation to NFT
rmanzoku
0
1.5k
ブロックチェーン時代の認証 / Authentication in the Blockchain Era
rmanzoku
8
3.2k
ERC-721をかぞえて / Enumerate ERC-721
rmanzoku
3
8.4k
MCH+ Hackathon #1
rmanzoku
0
320
AWS上で動く世界No.1ブロックチェーンゲーム / No1 Blockchain Game on AWS
rmanzoku
1
3k
ブロックチェーンゲームMyCryptoHeroesの作り方 / Architecture of My Crypto Heroes
rmanzoku
2
4.8k
Other Decks in Programming
See All in Programming
Vue・React マルチプロダクト開発を支える Vite
andpad
0
110
サーバーサイドのビルド時間87倍高速化
plaidtech
PRO
0
690
もうちょっといいRubyプロファイラを作りたい (2025)
osyoyu
0
220
サイトを作ったらNFCタグキーホルダーを爆速で作れ!
yuukis
0
740
More Approvers for Greater OSS and Japan Community
tkikuc
1
100
MCPでVibe Working。そして、結局はContext Eng(略)/ Working with Vibe on MCP And Context Eng
rkaga
3
380
Ruby Parser progress report 2025
yui_knk
1
260
開発チーム・開発組織の設計改善スキルの向上
masuda220
PRO
18
9.6k
testingを眺める
matumoto
1
130
TanStack DB ~状態管理の新しい考え方~
bmthd
2
370
tool ディレクティブを導入してみた感想
sgash708
1
160
ProxyによるWindow間RPC機構の構築
syumai
1
190
Featured
See All Featured
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
29
2.8k
Code Review Best Practice
trishagee
70
19k
Designing for Performance
lara
610
69k
Build The Right Thing And Hit Your Dates
maggiecrowley
37
2.8k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
23
1.4k
Stop Working from a Prison Cell
hatefulcrawdad
271
21k
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
11
1.1k
Facilitating Awesome Meetings
lara
55
6.5k
Bash Introduction
62gerente
614
210k
Optimising Largest Contentful Paint
csswizardry
37
3.4k
Exploring the Power of Turbo Streams & Action Cable | RailsConf2023
kevinliebholz
34
6k
Large-scale JavaScript Application Architecture
addyosmani
512
110k
Transcript
4USJOHΛͲ͏ʹ͔͢Δ CMPDLDIBJOUPLZP EPVCMFKVNQUPLZPגࣜձࣾ ϦʔυΤϯδχΞຬ྄
w 3FCVJMEJOHUIFGVUVSFPGHBNJOH XJUICMPDLDIBJOUFDIOPMPHZ w ݄ۀ w ϒϩοΫνΣʔϯήʔϜઐۀ։ൃձࣾ w ैۀһਓʢۀҕୗΛؚΉʣ w
ϒϩοΫνΣʔϯʹҙͷ͋ΔΤϯδχΞΛੵۃ࠾༻தͰ͢ʂ EPVCMFKVNQUPLZPגࣜձࣾ
w ຬ྄ʢ.BO[PLV3ZPʣ w EPVCMFKVNQUPLZPϦʔυΤϯδχΞ w ݄ΑΓΠϯϑϥઃܭӡ༻ɺαʔόαΠυ։ൃɺ 4NBSU$POUSBDU։ൃɺϒϩοΫνΣʔϯٕज़ௐࠪͳͲΛ୲ w աڈʹιʔγϟϧήʔϜձࣾɺ&E5FDIΞϓϦձࣾͰΠϯϑ ϥΤϯδχΞͱͯ͠"84Λத৺ͱͨ͠ΫϥυΠϯϑϥ͔ΒΞ
ϓϦ·ͰͷશମઃܭɺߏஙɺվળΛܦݧ ࣗݾհ
4PMJEJUZॻ͍ͯ·͔͢ʁ
4USJOHܕ͍·͔͢ʁ
None
)FMMP8PSMEҎ֎Ͱ͏͜ͱ͋Δͷʁ
&3$.FUBEBUB
&3$63*
&UISFVN͔Β֎ͷੈքΛࢀর͢Δ ߹ʹ͏
4PMJEJUZEPFTOPUIBWFTUSJOHNBOJQVMBUJPOGVODUJPOT CVUUIFSFBSFUIJSEQBSUZTUSJOHMJCSBSJFT https://solidity.readthedocs.io/en/v0.5.13/types.html#bytes-and-strings-as-arrays
Ͳ͏ʹ͔͍͖ͯ͠·͠ΐ͏
w MFO TUS w TUSMFOHUI w CZUFT TUS MFOHUI
2จࣈྻͷ͞
w MFO TUS w 4PMJEJUZʹΈࠐΈͷMFO ଘࡏ͠ͳ͍ w TUSMFOHUI w
.FNCFSMFOHUIOPUGPVOEPSOPUWJTJCMFBGUFS BSHVNFOUEFQFOEFOUMPPLVQJOMJUFSBM@TUSJOH w CZUFT TUS MFOHUI w ˓ "จࣈྻͷ͞
TUSJOHJTFRVBMUPCZUFTCVUEPFT OPUBMMPXMFOHUIPSJOEFYBDDFTT https://solidity.readthedocs.io/en/v0.5.13/ types.html#bytes-and-strings-as-arrays
w TUSTUS w LFDDBL TUS LFDDBL TUS w
LFDDBL BCJFODPEF1BDLFE T LFDDBL BCJFOD PEF1BDLFE T 2จࣈྻͷൺֱ
w TUSTUS w ඇਪ w LFDDBL TUS LFDDBL TUS
w ͪΐͬͱલ·Ͱ͜Ε͕ਪ͞Ε͍ͯͨ w LFDDBL BCJFODPEF1BDLFE T LFDDBL BCJFOD PEF1BDLFE T w ˓W͔ΒυΩϡϝϯτʹొ "จࣈྻͷൺֱ
w TUS TUS w CZUFT TUS CZUFT TUS
w BCJFODPEF1BDLFE TUS TUS w Ͳ͏ʹ͔͢Δ 2จࣈྻͷ࿈݁
w TUS TUS w TUSJOH"SSBZͳͷͰ ͑·ͤΜ w CZUFT TUS
CZUFT TUS w CZUFT"SSBZͳͷͰ ͑·ͤΜ w BCJFODPEF1BDLFE TUS TUS w ˓W͔ΒυΩϡϝϯτʹొ w Ͳ͏ʹ͔͢Δ "จࣈྻͷ࿈݁
BCJFODPEF1BDLFEΛΒͳ͔ͬͨࠒ
w TUS<> w CZUFT<> w Ͳ͏ʹ͔͢Δ 2จࣈྻͷΓऔΓ
w TUS<> w TUSJOHJTFRVBMUPCZUFTCVUEPFTOPUBMMPXMFOHUIPS JOEFYBDDFTT w CZUFT<> w Έ͍ͨͳΞΫηεͰ͖ͳ͍ɻจࣈ͚ͩͳΒ͜ΕͰՄ w
Ͳ͏ʹ͔͢Δ w ˓ "จࣈྻͷΓऔΓ
Ͳ͏ʹ͔͢Δ
w TUSJOH J w TUSJOH BCJFODPEF1BDLFE J w
Ͳ͏ʹ͔͢Δ 2VJOUͷจࣈྻԽ
w TUSJOH J w ͦΜͳ͘ͳ͍ w TUSJOH BCJFODPEF1BDLFE J
w Ͱ͖Δ͔ͳͱࢥ͚ͬͨͲͦΜͳ͘ͳ͍ w Ͳ͏ʹ͔͢Δ w ˓ "VJOUͷจࣈྻԽ
Ͳ͏ʹ͔͢Δ
w BEESTUSJOH w TUSJOH BEES w TUSJOH BCJFODPEF1BDLFE
BEES w Ͳ͏ʹ͔͢Δ 2BEESFTTͷจࣈྻԽ
w BEESTUSJOH w ͦΜͳ͘ͳ͍ w TUSJOH BEES w
&YQMJDJUUZQFDPOWFSTJPOOPUBMMPXFE w TUSJOH BCJFODPEF1BDLFE BEES w &YQMJDJUUZQFDPOWFSTJPOOPUBMMPXFE w Ͳ͏ʹ͔͢Δˠ˓ "BEESFTTͷจࣈྻԽ
Ͳ͏ʹ͔͢Δ
w Ͳ͏ʹ͔͢Δ 2จࣈྻͷ4QMJU
None
΄Μͱʹ͜ΕΛΔͷʁ
4PMJEJUZEPFTOPUIBWFTUSJOHNBOJQVMBUJPOGVODUJPOT CVUUIFSFBSFUIJSEQBSUZTUSJOHMJCSBSJFT
044Ͱެ։ͯ͠·͢ʂ IUUQTHJUIVCDPN EPVCMFKVNQUPLZPNDIQMVTDPOUSBDUT
ϚΠΫϦΛ࢝ΊΑ͏ʂ https://mch.gg/start টίʔυ ʮTHA4ʯ Λೖྗʂ