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
RxJSで時空を制した話
Search
Jun Tomioka
July 14, 2016
Programming
3
810
RxJSで時空を制した話
RxJSで時空を制した話@M3techmeetup
http://m3-engineer.connpass.com/event/33802/
Jun Tomioka
July 14, 2016
Tweet
Share
More Decks by Jun Tomioka
See All by Jun Tomioka
Dotty で軽量な DI ライブラリをかいてみた
jooohn
1
330
ソフトウェアエンジニアとしてモナドを完全に理解する / make-perfect-sense-of-monad
jooohn
14
7.7k
ScalaのコンパイラにFizzBuzzを解いてもらう(Dottyもあるよ)
jooohn
1
1k
Write stack safe non-tailrec recursive functions
jooohn
4
930
Introduction to Clean Architecture
jooohn
1
560
人類には早すぎる、謎の計算ロジックに立ち向かう / Strugle with the most complicated logic ever
jooohn
1
1.7k
Work at M3 USA
jooohn
0
1.3k
クラウド電子カルテを支えるテクノロジーの光と闇
jooohn
0
1.3k
怖くないCats
jooohn
0
820
Other Decks in Programming
See All in Programming
Rubyでやりたい駆動開発 / Ruby driven development
chobishiba
1
530
PHP 8.4の新機能「プロパティフック」から学ぶオブジェクト指向設計とリスコフの置換原則
kentaroutakeda
2
710
Team topologies and the microservice architecture: a synergistic relationship
cer
PRO
0
1.2k
『自分のデータだけ見せたい!』を叶える──Laravel × Casbin で複雑権限をスッキリ解きほぐす 25 分
akitotsukahara
1
600
Is Xcode slowly dying out in 2025?
uetyo
1
240
Flutterで備える!Accessibility Nutrition Labels完全ガイド
yuukiw00w
0
140
Webの外へ飛び出せ NativePHPが切り拓くPHPの未来
takuyakatsusa
2
460
今ならAmazon ECSのサービス間通信をどう選ぶか / Selection of ECS Interservice Communication 2025
tkikuc
20
3.8k
イベントストーミング図からコードへの変換手順 / Procedure for Converting Event Storming Diagrams to Code
nrslib
1
570
Go1.25からのGOMAXPROCS
kuro_kurorrr
1
840
ふつうの技術スタックでアート作品を作ってみる
akira888
0
290
ソフトウェア品質を数字で捉える技術。事業成長を支えるシステム品質の マネジメント
takuya542
0
400
Featured
See All Featured
Why You Should Never Use an ORM
jnunemaker
PRO
58
9.4k
[Rails World 2023 - Day 1 Closing Keynote] - The Magic of Rails
eileencodes
35
2.4k
Being A Developer After 40
akosma
90
590k
Side Projects
sachag
455
42k
GraphQLとの向き合い方2022年版
quramy
49
14k
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
161
15k
Java REST API Framework Comparison - PWX 2021
mraible
31
8.7k
GitHub's CSS Performance
jonrohan
1031
460k
Navigating Team Friction
lara
187
15k
No one is an island. Learnings from fostering a developers community.
thoeni
21
3.3k
Optimising Largest Contentful Paint
csswizardry
37
3.3k
It's Worth the Effort
3n
185
28k
Transcript
RxJSͰۭ࣌Λ੍ͨ͠ M3, Inc. Jun Tomioka
ࣗݾհ Ԭ ७ (@jooohn) - ΤϜεϦʔגࣜձࣾ - ΤϯδχΞϦϯάG - ৽نϓϩδΣΫτx2
(ॾࣄʹΑΓඇެ։த) - ՇͷാͱؒΛͱͬͯڮຊ͔ Β̎h௨ۈʢڠٞதʣ
RxJSͰۭ࣌Λ੍ͨ͠
ॾࣄʹΑΓ αʔϏε༰Λݴ͑ͳ͍ͷͰ ԾͷαʔϏεͰઆ໌͠·͢
https://github.com/jooohn/rx-angular-example
ۭ࣌Λ੍͢Δલ https://goo.gl/1wlYCu
ۭ࣌Λ੍͍ͤͯͳ͍ • Ϣʔβʔ͕ૢ࡞͢ΔɺͨΒୟ͔ΕΔAPIίʔϧ • λΠϛϯάʹΑۭ͕ͬͯ࣌Ή • Load Moreͷॱ൪ • લճͷݕࡧ݁ՌΫϦΞ
• ݹ͍݅ͷݕࡧ݁ՌΛදࣔʂʂ
ʰjʱͰݕࡧ ʰjaʱͰݕࡧ ʰjaʱͷ݁Ռ ʰjʱͷ݁Ռ ۭ࣌ͷΈ
ۭ࣌ͷΈ
ͭΒ͍
ͦ͜Ͱ
None
None
An API for asynchronous programming with observable streams ࠓճॏཁͳ
None
Αͦ͞͏
ۭ࣌Λ੍͍ͤͯͳ͍ • Ϣʔβʔ͕ૢ࡞͢ΔɺͨΒୟ͔ΕΔAPIίʔϧ • λΠϛϯάʹΑۭ͕ͬͯ࣌Ή
ۭ࣌Λ੍͍ͤͯͳ͍ • Ϣʔβʔ͕ૢ࡞͢ΔɺͨΒୟ͔ΕΔAPIίʔϧ • λΠϛϯάʹΑۭ͕ͬͯ࣌Ή
combineLatest
ݕࡧΩʔϫʔυͷετϦʔϜ େͷετϦʔϜ “” “j” “ja” Asia Europe combineLatest “” /
Asia “j” / Asia “ja” / Asia “ja” / Europe ݕࡧ݅ͷετϦʔϜ
ݕࡧ݅ͷ ετϦʔϜΛ ҰຊԽ
debounce
debounce debounce(300) ݕࡧ݅ͷετϦʔϜ 300msҎʹଞͷΠϕϯτ͕͋ΔͷΛഉআ
debounce debounce(300) ݕࡧ݅ͷετϦʔϜ ࿈ଧɾΩʔλΠϓͰͷແବͳϦΫΤετΛݮʂ
ۭ࣌Λ੍͍ͤͯͳ͍ • Ϣʔβʔ͕ૢ࡞͢ΔɺͨΒୟ͔ΕΔAPIίʔϧ • λΠϛϯάʹΑۭ͕ͬͯ࣌Ή
ۭ࣌Λ੍͍ͤͯͳ͍ • Ϣʔβʔ͕ૢ࡞͢ΔɺͨΒୟ͔ΕΔAPIίʔϧ • λΠϛϯάʹΑۭ͕ͬͯ࣌Ή
flatMapLatest
͜Ε͚ͩ
flatMap
flatMapLatest
flatMapLatest ݅A ݅B ݅C ݅D flatMapLatest(݅ => ݁ՌͷετϦʔϜ) ݁ՌA ݁ՌB
݁ՌC ݁ՌD
flatMapLatest ݅A ݅B ݅C ݅D flatMapLatest(݅ => ݁ՌͷετϦʔϜ) ݁ՌA ݁ՌB
݁ՌC ݁ՌD ۭ͕࣌·ͳ͍
ۭ͕࣌·ͳ͍ʂ
flatMapLatest
͜Ε͚ͩͰ
ۭ͕࣌·ͳ͍ʂ
ۭ࣌Λ੍͍ͤͯͳ͍ • Ϣʔβʔ͕ૢ࡞͢ΔɺͨΒୟ͔ΕΔAPIίʔϧ • λΠϛϯάʹΑۭ͕ͬͯ࣌Ή
https://goo.gl/7phFXe
ۭ࣌Λ੍ͨ͠ʂ