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
350
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
7.9k
ScalaのコンパイラにFizzBuzzを解いてもらう(Dottyもあるよ)
jooohn
1
1.1k
Write stack safe non-tailrec recursive functions
jooohn
4
970
Introduction to Clean Architecture
jooohn
1
570
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
1.4k
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
850
Other Decks in Programming
See All in Programming
Claude Code on the Web を超える!? Codex Cloud の実践テク5選
sunagaku
0
550
Verilator + Rust + gRPC と Efinix の RISC-V でAIアクセラレータをAIで作ってる話 RTLを語る会(18) 2025/11/08
ryuz88
0
360
FlutterKaigi 2025 システム裏側
yumnumm
0
1.1k
Agentに至る道 〜なぜLLMは自動でコードを書けるようになったのか〜
mackee
5
1.5k
AIエージェントでのJava開発がはかどるMCPをAIを使って開発してみた / java mcp for jjug
kishida
4
650
Core MIDI を勉強して作曲用の電子ピアノ作ってみた!
hypebeans
0
110
最新のDirectX12で使えるレイトレ周りの機能追加について
projectasura
0
240
CSC509 Lecture 10
javiergs
PRO
0
180
Inside of Swift Export
giginet
PRO
1
560
CSC509 Lecture 11
javiergs
PRO
0
310
Atomics APIを知る / Understanding Atomics API
ssssota
1
150
高単価案件で働くための心構え
nullnull
0
140
Featured
See All Featured
Designing Dashboards & Data Visualisations in Web Apps
destraynor
231
54k
The MySQL Ecosystem @ GitHub 2015
samlambert
251
13k
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
49
3.2k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
132
19k
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
35
3.2k
Fantastic passwords and where to find them - at NoRuKo
philnash
52
3.5k
The Invisible Side of Design
smashingmag
302
51k
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
12
1.3k
Mobile First: as difficult as doing things right
swwweet
225
10k
Git: the NoSQL Database
bkeepers
PRO
432
66k
Java REST API Framework Comparison - PWX 2021
mraible
34
9k
Producing Creativity
orderedlist
PRO
348
40k
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