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
260

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
270
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
320
Vue 入門者が日報ツールを作ってみた
Avatar for Kosuke Ogawa koogawa
1
360
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
1.2k
Firestore のデータ設計について
Avatar for Kosuke Ogawa koogawa
0
770
はじめてウェブサイトで Firebase を使ってみた
Avatar for Kosuke Ogawa koogawa
1
450
iOSアプリ開発におけるJavaScript
Avatar for Kosuke Ogawa koogawa
1
430
Stack Overflow活動 その後の活動報告
Avatar for Kosuke Ogawa koogawa
1
200
「まりも」と iOS の 6年間
Avatar for Kosuke Ogawa koogawa
4
7.3k

Other Decks in Technology

See All in Technology
ガチな登山用デバイスからこんにちは
Avatar for halka halka
1
210
Jaws-ug名古屋_LT資料_20250829
Avatar for Azoo azoo2024
3
230
AI時代にPdMとPMMはどう連携すべきか / PdM–PMM-collaboration-in-AI-era
Avatar for Rakus_Dev rakus_dev
0
270
「魔法少女まどか☆マギカ Magia Exedra」での負荷試験の実践と学び
Avatar for gree_tech gree_tech
PRO
0
510
iPhone Eye Tracking機能から学ぶやさしいアクセシビリティ
Avatar for Kaito Fujimura fujiyamaorange
0
530
TypeScript入門
Avatar for Recruit recruitengineers
PRO
35
12k
Grafana Meetup Japan Vol. 6
Avatar for Taisei Ito kaedemalu
1
200
研究開発と製品開発、両利きのロボティクス
Avatar for Yutaka Kondo youtalk
1
350
Agile PBL at New Grads Trainings
Avatar for Yasunobu Kawaguchi kawaguti
PRO
1
190
クラウドセキュリティを支える技術と運用の最前線 / Cutting-edge Technologies and Operations Supporting Cloud Security
Avatar for Yuji Oshima yuj1osm
2
270
【５分でわかる】セーフィー エンジニア向け会社紹介
Avatar for Safie safie_recruit
0
30k
モダンフロントエンド 開発研修
Avatar for Recruit recruitengineers
PRO
10
6.3k

Featured

See All Featured
The Power of CSS Pseudo Elements
Avatar for Geoffrey Crofte geoffreycrofte
77
5.9k
Connecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]
Avatar for Tammy Everts tammyeverts
8
510
Why Our Code Smells
Avatar for Brandon Keepers bkeepers
PRO
339
57k
Sharpening the Axe: The Primacy of Toolmaking
Avatar for Bryan Cantrill bcantrill
44
2.5k
Put a Button on it: Removing Barriers to Going Fast.
Avatar for kastner kastner
60
4k
[RailsConf 2023 Opening Keynote] The Magic of Rails
Avatar for Eileen M. Uchitelle eileencodes
30
9.6k
Navigating Team Friction
Avatar for Lara Hogan lara
189
15k
Java REST API Framework Comparison - PWX 2021
Avatar for Matt Raible mraible
33
8.8k
ReactJS: Keep Simple. Everything can be a component!
Avatar for Pedro Nauck pedronauck
667
120k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
Avatar for Eileen M. Uchitelle eileencodes
139
34k
Build The Right Thing And Hit Your Dates
Avatar for Maggie C. maggiecrowley
37
2.8k
Designing for Performance
Avatar for Lara Hogan lara
610
69k

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·ͨ͠