Upgrade to Pro — share decks privately, control downloads, hide ads and more …

TypeScript リテラル型について

Avatar for Kosuke Ogawa Kosuke Ogawa
September 18, 2020
Technology
1
250

TypeScript リテラル型について

Webナイト宮崎 Vol.10　～てげTypeScriptを学びたい～ - connpass https://tegehoge.connpass.com/event/186724/
Avatar for Kosuke Ogawa

Kosuke Ogawa

September 18, 2020
Tweet

More Decks by Kosuke Ogawa

See All by Kosuke Ogawa
PHP or die
Avatar for Kosuke Ogawa koogawa
0
260
Nuxt.js で非同期なデータを取得するときのポイント
Avatar for Kosuke Ogawa koogawa
0
310
Vue 入門者が日報ツールを作ってみた
Avatar for Kosuke Ogawa koogawa
1
340
地方に住むエンジニアがこの先生きのこるには
Avatar for Kosuke Ogawa koogawa
0
1.1k
Firestore のデータ設計について
Avatar for Kosuke Ogawa koogawa
0
720
はじめてウェブサイトで Firebase を使ってみた
Avatar for Kosuke Ogawa koogawa
1
440
iOSアプリ開発におけるJavaScript
Avatar for Kosuke Ogawa koogawa
1
420
Stack Overflow活動 その後の活動報告
Avatar for Kosuke Ogawa koogawa
1
190
「まりも」と iOS の 6年間
Avatar for Kosuke Ogawa koogawa
4
7.2k

Other Decks in Technology

See All in Technology
Simplify! 10 ways to reduce complexity in software development
Avatar for Uwe Friedrichsen ufried
1
180
SREからゼロイチプロダクト開発へ ー越境する打席の立ち方と期待への応え方ー / Product Engineering Night #8
Avatar for itkq itkq
2
1.1k
Oracle Cloud Infrastructure：2025年4月度サービス・アップデート
Avatar for oracle4engineer oracle4engineer
PRO
0
320
MCPが変えるAIとの協働
Avatar for 西岡 賢一郎 (Kenichiro Nishioka) knishioka
1
120
意思決定を支える検索体験を目指してやってきたこと
Avatar for Taisuke Hinata hinatades
PRO
0
390
テストって楽しい！開発を加速させるテストの魅力 / Testing is Fun! The Fascinating of Testing to Accelerate Development
Avatar for END aiandrox
0
160
AI 코딩 에이전트 더 똑똑하게 쓰기
Avatar for nacyot nacyot
0
460
MySQL Indexes and Histograms – How they really speed up your queries
Avatar for lefred lefred
0
140
持続可能なドキュメント運用のリアル: 1年間の成果とこれから
Avatar for akitok akitok_
1
270
更新系と状態
Avatar for uhyo uhyo
8
2.2k
CodeRabbitと過ごした1ヶ月 ─ AIコードレビュー導入で実感したチーム開発の進化
Avatar for mitohato14 mitohato14
1
230
グループ ポリシー再確認 (2)
Avatar for Murachi Akira murachiakira
0
210

Featured

See All Featured
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
Avatar for mongodb mongodb
45
9.5k
JavaScript: Past, Present, and Future - NDC Porto 2020
Avatar for David Neal reverentgeek
47
5.4k
4 Signs Your Business is Dying
Avatar for Josh Pigford shpigford
183
22k
Making Projects Easy
Avatar for Brett Harned brettharned
116
6.2k
We Have a Design System, Now What?
Avatar for Morgane Peng morganepeng
52
7.5k
10 Git Anti Patterns You Should be Aware of
Avatar for Lemi Orhan Ergin lemiorhan
PRO
656
60k
Imperfection Machines: The Place of Print at Facebook
Avatar for Scott Boms scottboms
267
13k
Documentation Writing (for coders)
Avatar for Carmen Chung carmenintech
69
4.7k
Templates, Plugins, & Blocks: Oh My! Creating the theme that thinks of everything
Avatar for Michelle Schulp Hunt marktimemedia
30
2.3k
How to train your dragon (web standard)
Avatar for Monica Dinculescu notwaldorf
91
6k
Making the Leap to Tech Lead
Avatar for Ryan Cromwell cromwellryan
133
9.2k
Fantastic passwords and where to find them - at NoRuKo
Avatar for Phil Nash philnash
51
3.2k

Transcript

  1. KOSUKE OGAWA 2020 WebφΠτٶ࡚ No. 10 Ϧςϥϧܕʹ͍ͭͯ

  2. ࣗݾ঺հ w 0HBXB,PTVLFʢ!LPPHBXBʣ w Ξϧגࣜձࣾʢ౦ژʣ w ٶ࡚͔ΒϑϧϦϞʔτ w J04 4XJGU

    "OESPJE ,PUMJO 5ZQF4DSJQU $44 7VFKT /VYUKTͳͲ w ࠷ۙ͸ϑϩϯτΤϯυ͕ϝΠϯ

  3. ͋Δ೔ ͱ͋ΔίʔυΛಡΜͰ͍ͨΒɺ ͜ΜͳίʔυΛݟ͚ͭͨ

  4. w AAͱ͔AAͱ͍͏ܕ͕͋Δʂʁ w BOVNCFSͳΒΘ͔Δ

  5. • 6 ΍ 2000 ͔͠ڐ͞Εͳ͍ܕ • จࣈྻͷϦςϥϧܕ΋͋Δ • const b:

    'bar' = 'foo'; // Τϥʔ: Type '"foo"' is not assignable to type ‘"bar"'. Ϧςϥϧܕͱ͍͏Β͍͠

  6. • จࣈྻͷϦςϥϧܕΛ࣋ͭ஋͸stringܕͱͯ͠ѻ͏͜ͱ͕Ͱ͖Δ จࣈྻͷϦςϥϧܕ

  7. • ܕ஫ऍΛলུͯ͠΋ͪΌΜͱਪ࿦͞ΕΔ Ϧςϥϧܕͱܕਪ࿦

  8. ࢖͍ಓ

  9. • ϝϯόม਺ͷ஋Λมߋͯ͠΄͘͠ͳ͍ͱ͖ ࢖͍ಓ1

  10. • ϢχΦϯܕͰ݁߹͢Δ ࢖͍ಓ2

  11. ͋Γ͕ͱ͏͍͟͝·ͨ͠