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
1.2k
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
530
NFTを取り巻く技術要素とAWS利活用 / Technology and AWS of NFT
rmanzoku
0
900
NFTを中心とした新しいゲームの形 / The new approach of gaming with NFT
rmanzoku
0
410
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
3k
ERC-721をかぞえて / Enumerate ERC-721
rmanzoku
3
8k
MCH+ Hackathon #1
rmanzoku
0
300
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
2.9k
ブロックチェーンゲームMyCryptoHeroesの作り方 / Architecture of My Crypto Heroes
rmanzoku
2
4.7k
Other Decks in Programming
See All in Programming
今年のアップデートで振り返るCDKセキュリティのシフトレフト/2024-cdk-security-shift-left
tomoki10
0
210
create_tableをしただけなのに〜囚われのuuid編〜
daisukeshinoku
0
260
Go の GC の不得意な部分を克服したい
taiyow
3
790
range over funcの使い道と非同期N+1リゾルバーの夢 / about a range over func
mackee
0
110
PHPで学ぶプログラミングの教訓 / Lessons in Programming Learned through PHP
nrslib
3
280
LLM Supervised Fine-tuningの理論と実践
datanalyticslabo
7
1.3k
見えないメモリを観測する: PHP 8.4 `pg_result_memory_size()` とSQL結果のメモリ管理
kentaroutakeda
0
380
テストコードのガイドライン 〜作成から運用まで〜
riku929hr
5
630
KubeCon + CloudNativeCon NA 2024 Overviewat Kubernetes Meetup Tokyo #68 / amsy810_k8sjp68
masayaaoyama
0
250
バグを見つけた?それAppleに直してもらおう!
uetyo
0
180
PHPで作るWebSocketサーバー ~リアクティブなアプリケーションを知るために~ / WebSocket Server in PHP - To know reactive applications
seike460
PRO
2
450
「Chatwork」Android版アプリを 支える単体テストの現在
okuzawats
0
180
Featured
See All Featured
Typedesign – Prime Four
hannesfritz
40
2.4k
Being A Developer After 40
akosma
87
590k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
365
25k
The Cost Of JavaScript in 2023
addyosmani
45
7k
Music & Morning Musume
bryan
46
6.2k
Making Projects Easy
brettharned
116
5.9k
Fight the Zombie Pattern Library - RWD Summit 2016
marcelosomers
232
17k
Rebuilding a faster, lazier Slack
samanthasiow
79
8.7k
[Rails World 2023 - Day 1 Closing Keynote] - The Magic of Rails
eileencodes
33
2k
Learning to Love Humans: Emotional Interface Design
aarron
273
40k
個人開発の失敗を避けるイケてる考え方 / tips for indie hackers
panda_program
95
17k
Designing Experiences People Love
moore
138
23k
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