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
440
NFTを取り巻く技術要素とAWS利活用 / Technology and AWS of NFT
rmanzoku
0
870
NFTを中心とした新しいゲームの形 / The new approach of gaming with NFT
rmanzoku
0
400
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
2.8k
ERC-721をかぞえて / Enumerate ERC-721
rmanzoku
3
7.6k
MCH+ Hackathon #1
rmanzoku
0
280
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
2.8k
ブロックチェーンゲームMyCryptoHeroesの作り方 / Architecture of My Crypto Heroes
rmanzoku
2
4.6k
Other Decks in Programming
See All in Programming
9年開発を牽引して見えてきた、共通化すべきものと個別でつくるもの ~プログラム言語~
shinout
1
640
What We Can Learn From OSS
inouehi
0
380
try!Swift Tokyo 2024 参加報告 LT
akidon0000
1
180
エンターテイメント業界で利用されるAWS
demuyan
0
200
脱・初心者!脱・マネコン!AWS CDKを使ってみませんか!?
har1101
0
300
CircleCIを活用して AWSへの継続的デリバリーを 実践する
coconala_engineer
1
230
Introduction for Open Source Swift Workshop
giginet
PRO
0
1k
ONE WEDGE_company_guide
1wedge_one
0
320
1BRC--Nerd Sniping the Java Community
gunnarmorling
0
300
今の SmartHR にエンジニアで入社するとどうなるの?
daisukeshinoku
5
4.6k
品質とスピードを両立: TypeScriptの柔軟な型システムをバックエンドで活用する
kosui
8
2.2k
try! Swift Tokyo 2024のLT枠に採択されたプロポーザルを出すときに考えていたこと
ski
0
330
Featured
See All Featured
Designing for humans not robots
tammielis
247
25k
Fantastic passwords and where to find them - at NoRuKo
philnash
35
2.5k
A Tale of Four Properties
chriscoyier
150
22k
Building a Modern Day E-commerce SEO Strategy
aleyda
16
6.3k
5 minutes of I Can Smell Your CMS
philhawksworth
199
19k
Making Projects Easy
brettharned
106
5.5k
The Pragmatic Product Professional
lauravandoore
24
5.8k
Gamification - CAS2011
davidbonilla
76
4.6k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
6
990
Reflections from 52 weeks, 52 projects
jeffersonlam
343
19k
StorybookのUI Testing Handbookを読んだ
zakiyama
10
4.5k
Product Roadmaps are Hard
iamctodd
43
9.7k
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