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
Reactのパフォーマンス改善例
Search
rakus frontend
May 22, 2024
Technology
0
510
Reactのパフォーマンス改善例
rakus frontend
May 22, 2024
Tweet
Share
More Decks by rakus frontend
See All by rakus frontend
新卒FEが1年目に取り組んだこと・学んだこと
rakus_fe
0
48
ErrorBoundaryとSuspenseの導入検討
rakus_fe
1
750
日付をもう少し真面目に勉強中
rakus_fe
0
43
React19 β をざっと見る
rakus_fe
0
320
Typescript5.4の新機能
rakus_fe
0
300
非破壊的な配列メソッド
rakus_fe
0
360
ココがすごいぜ!Playwright Component Test
rakus_fe
0
550
スプレッドシートのセル結合がつらいので足掻いてみた話
rakus_fe
0
250
Other Decks in Technology
See All in Technology
InsightX 会社説明資料/ Company deck
insightx
0
200
re:Invent 2025の見どころと便利アイテムをご紹介 / Highlights and Useful Items for re:Invent 2025
yuj1osm
0
690
Raycast AI APIを使ってちょっと便利なAI拡張機能を作ってみた
kawamataryo
1
250
次世代のメールプロトコルの斜め読み
hirachan
3
380
プロダクトエンジニアとしてのマインドセットの育み方 / How to improve product engineer mindset
saka2jp
1
180
OPENLOGI Company Profile for engineer
hr01
1
46k
GCASアップデート(202508-202510)
techniczna
0
340
251029 JAWS-UG AI/ML 退屈なことはQDevにやらせよう
otakensh
0
190
AI連携の新常識! 話題のMCPをはじめて学ぶ!
makoakiba
0
180
어떤 개발자가 되고 싶은가?
arawn
1
430
DMMの検索システムをSolrからElasticCloudに移行した話
hmaa_ryo
0
370
Oracle Database@Google Cloud:サービス概要のご紹介
oracle4engineer
PRO
0
430
Featured
See All Featured
Site-Speed That Sticks
csswizardry
13
940
Testing 201, or: Great Expectations
jmmastey
46
7.7k
The Art of Programming - Codeland 2020
erikaheidi
56
14k
How STYLIGHT went responsive
nonsquared
100
5.9k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
31
2.9k
Building Flexible Design Systems
yeseniaperezcruz
329
39k
Statistics for Hackers
jakevdp
799
220k
A better future with KSS
kneath
239
18k
Making the Leap to Tech Lead
cromwellryan
135
9.6k
BBQ
matthewcrist
89
9.9k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
31
2.7k
Building a Modern Day E-commerce SEO Strategy
aleyda
44
8k
Transcript
ReactͷύϑΥʔϚϯεվળྫ
ࠓͷ͓ https://web.dev/articles/rail?hl=ja
RAILϞσϧͱ RAILGoogleࣾͷ։ൃऀͰ͋Δ Ilya Grigorik ࢯ͕ఏ এͨ͠ύϑΥʔϚϯεϞσϧͰ͢ɻ ग़యɿWebϑϩϯτΤϯυϋΠύϑΥʔϚϯενϡʔχϯά RAILɺResponse, Animation, Idle,
Loadͷ֤୯ޠͷ ಄จࣈΛऔ໊͚ͬͯΒΕ·ͨ͠ɻ RAILɺϢʔβʔΛத৺ͱͨ͠ύϑΥʔϚϯεϞσϧ Λඪᒗ͠·͢ɻ
ࠓͷ͓ https://web.dev/articles/rail?hl=ja 👉
Responseͱ ResponseɺϢʔβʔ͕ԿΒ͔ͷΞΫγϣϯʹର͠ ͯΣϒϖʔδ͕ϢʔβʔΠϯλʔϑΣΠε্ͷมԽ ΛҾ͖ىͯ͜͠ɺԠ͢Δ·Ͱͷ࣌ؒΛࢦ͠·͢ɻ
Responseͱ
Responseͱ 👉 Googleఏএඪ
Responseͱ 👉 ݱ࣮తͳඪ
ϥΫεϓϩμΫτʹ͓͚Δ 500ߦͷςʔϒϧ
ϥΫεϓϩμΫτʹ͓͚Δ (ms) 1ճ 2ճ 3ճ 4ճ 5ճ 6ճ 7ճ 8ճ
9ճ 10ճ res 2306 2698 2523 3122 2546 2472 2382 2872 2619 2465 2659ms 75ύʔηϯλΠϧ
ϘτϧωοΫௐࠪ React Developer Tools
ෆཁͳϨϯμϦϯάͷݮ ίϯϙʔωϯτ͕࠶ϨϯμϦϯά͞Εͨཧ༝Λ ϩάग़ྗͯ͘͠ΕΔϥΠϒϥϦ https://github.com/welldone-software/why-did-you-render
ෆཁͳϨϯμϦϯάͷݮ install vite.config.ts main.tsx
ෆཁͳϨϯμϦϯάͷݮ
ෆཁͳϨϯμϦϯάͷݮ ؔςʔϒϧηϧίϯϙʔωϯτͷϝϞԽΛߦ͏
ෆཁͳϨϯμϦϯάͷݮ ͪΐͬͱͨ͠ίʔυͷॻ͖ํͷҧ͍Ͱ ϝϞԽ͕ޮ͔ͳ͘ͳΔͨΊҙ͢Δ 👎 👍
ෆཁͳϨϯμϦϯάͷݮ ͪΐͬͱͨ͠ίʔυͷॻ͖ํͷҧ͍Ͱ ϝϞԽ͕ޮ͔ͳ͘ͳΔͨΊҙ͢Δ
ෆཁͳϨϯμϦϯάͷݮ
ෆཁͳϨϯμϦϯάͷݮ վળલ վળޙ
ύϑΥʔϚϯεൺֱ (ms) 1ճ 2ճ 3ճ 4ճ 5ճ 6ճ 7ճ 8ճ
9ճ 10ճ վળલ 2306 2698 2523 3122 2546 2472 2382 2872 2619 2465 վળޙ 465 481 503 562 561 479 545 483 498 491 2659ms 524ms 🎉
վળલ վળޙ
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠