[B! react][performance] mizdraã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

mizdra id:mizdra

reactã¨performanceã«é–¢ã™ã‚‹mizdraã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (12)

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Apollo Client ã¨ SSR ã®ç½ ãã®1 - ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹æ”¹å–„ç·¨ | Wantedly Engineer Blog
Wantedly ã§ãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã‚’ã—ã¦ã„ã‚‹ @izumin5210 ã§ã™ã€‚ ã“ã®è¨˜äº‹ã¯ GraphQL Advent Calendar 2020 ã®11æ—¥ç›®ã®è¨˜äº‹ã¨ã—ã¦æ›¸ã‹ã‚Œã¾ã—ãŸã€‚ãŒã€7å‰²ãã‚‰ã„ã¯ SSR ã«ã¤ã„ã¦ã®è°è«–ã®ã“ã‚Š3å‰²ãã‚‰ã„ãŒ Apollo Client ã®è©±ã§ã™ã€‚ æœ€è¿‘ã€Apollo Client ã¨ SSR(Server Side Rendering) ã‚’åˆ©ç”¨ã—ãŸ Web ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹æ”¹å–„ã«å–ã‚Šçµ„ã¿ã¾ã—ãŸã€‚ã“ã®è¨˜äº‹ã§ã¯ã€Œãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã®å•é¡Œã«ã©ã†ç«‹ã¡å‘ã‹ã£ãŸã‹ã€ãŠã‚ˆã³ã€Œãã‚‚ãã‚‚å•é¡Œã‚’èµ·ã“ã•ãªã„æ§‹é€ ã«ã™ã‚‹ãŸã‚ã«ä½•ãŒã§ãã‚‹ã‹ãƒ»ä½•ã‚’ã™ã¹ãã§ãªã„ã‹ã€ã®è€ƒå¯Ÿã‚’ã—ã¦ã„ãã¾ã™ã€‚ TL;DRãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹æ”¹å–„ã¯è¨ˆæ¸¬ãƒ»å¯è¦–åŒ–ã‹ã‚‰ãƒ©ã‚¤ãƒ–ãƒ©ãƒªãŒç”¨æ„ã—ã¦ãã‚Œã¦ã„ã‚‹ãƒ•ãƒƒã‚¯æ©Ÿæ§‹ã‚’ä¸Šæ‰‹ã«ä½¿ã£ã¦è¨ˆæ¸¬ã—ã¦ã„ã“ã†renderToStringWithData ã§ã¯ã€renderT
mizdra 2022/02/14
ssr

react

graphql

performance
ãƒªãƒ³ã‚¯
Netflix ãŒReact ã‚’ã‚„ã‚ã¦ã€SSRã«ã—ãŸã‚‰ãƒ©ãƒ³ãƒ‡ã‚£ãƒ³ã‚°ãƒšãƒ¼ã‚¸ã‚’ 50% é«˜é€ŸåŒ–ã§ããŸã¨ã„ã†ã“ã¨ã‚‰ã—ã„ã®ã§ã™ãŒã€ä¸€æ–¹slackã¯Reactã§é«˜é€Ÿã«ã—ãŸã¨ã®ã“ã¨ã§ã™ãŒã€ã“ã®é•ã„ã¯ä½•ã§ã—ã‚‡ã†ã‹ï¼Ÿ
å›žç”: ãƒªãƒ³ã‚¯å…ˆã®è¨˜äº‹ï¼š * A Netflix Web Performance Case Study ã§é‡è¦ãªã®ã¯ > Netflix uses React on the client and server, but they identified that the client-side portion wasn't needed for the first interaction, so they leaned on what the browser can already do, and deferred client-side React. ã§ã™ã€‚è©³ã—ãã„ã†ã¨ * ...
mizdra 2021/04/26
ãƒ©ãƒ³ãƒ‡ã‚£ãƒ³ã‚°ãƒšãƒ¼ã‚¸ã‚’SSGã—ã¦ã€ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‚µã‚¤ãƒ‰ã«é…ã‚‰ã‚Œã‚‹JSã«Reactãƒ©ãƒ³ã‚¿ã‚¤ãƒ ã‚„ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã®ã‚³ãƒ¼ãƒ‰ã‚’å«ã‚ãªã„ã‚ˆã†ã«ã™ã‚‹ã€ã¨ã„ã†è©±ã ã£ãŸã€‚ãªã‚‹ã»ã©ã€‚

react

performance
ãƒªãƒ³ã‚¯
Before You memo() â€” overreacted
There are many articles written about React performance optimizations. In general, if some state update is slow, you need to: Verify youâ€™re running a production build. (Development builds are intentionally slower, in extreme cases even by an order of magnitude.) Verify that you didnâ€™t put the state higher in the tree than necessary. (For example, putting input state in a centralized store might no
mizdra 2021/02/23
performance

react
ãƒªãƒ³ã‚¯
useCallbackã¯ã¨ã«ã‹ãä½¿ãˆï¼ã€€ç‰¹ã«ã‚«ã‚¹ã‚¿ãƒ ãƒ•ãƒƒã‚¯ã§ã¯ - uhyo/blog
Reactã«ã¯ã€ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹æœ€é©åŒ–ã®ãŸã‚ã®APIãŒã„ãã¤ã‹ã‚ã‚Šã¾ã™ã€‚å…·ä½“çš„ã«ã¯React.memoã€useM emoã€ãã—ã¦useCallbackã§ã™ã€‚ React.memoã§å›²ã¾ã‚ŒãŸé–¢æ•°ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã¯ã€propsãŒä»¥å‰ã¨å¤‰ã‚ã£ã¦ã„ãªã„å ´åˆã«å†ãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ãŒæŠ‘åˆ¶ã•ã‚Œã¾ã™ã€‚ ã¾ãŸã€useM emoã‚„useCallbackã¯ã€é–¢æ•°ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆå†…ã§ã®å€¤ã®å†è¨ˆç®—ã‚’æŠ‘åˆ¶ã™ã‚‹åŠ¹æžœã‚’æŒã¡ã¾ã™ã€‚ ã“ã‚Œã‚‰ã¯æœ€é©åŒ–ã®ãŸã‚ã®ãƒ„ãƒ¼ãƒ«ãªã®ã§ã€ã€ŒéŽåº¦ãªæœ€é©åŒ–ã€ã‚’é¿ã‘ã‚‹ã‚ˆã†ã«å•“è’™ã™ã‚‹è¨€èª¬ãŒã‚ˆãè¦‹ã‚‰ã‚Œã¾ã™ã€‚ ã™ãªã‚ã¡ã€ã¡ã‚ƒã‚“ã¨æœ¬å½“ã«æœ€é©åŒ–ã®ãŸã‚ã«å¿…è¦ãªã¨ã“ã‚ã«ã ã‘ã“ã‚Œã‚‰ã‚’ä½¿ãŠã†ã¨ã„ã†ã“ã¨ã§ã™ã€‚ ç‰¹ã«ã€React.memoã¯propsãŒä»¥å‰ã¨å¤‰ã‚ã£ã¦ã„ã‚‹ã‹ã©ã†ã‹ã‚’åˆ¤å®šã™ã‚‹ãŸã‚ã®ã‚ªãƒ¼ãƒãƒ¼ãƒ˜ãƒƒãƒ‰ãŒã‚ã‚‹ã—ã€useM emoã‚„useCallbackã‚‚ãƒ•ãƒƒã‚¯å‘¼ã³å‡ºã—ã®ã‚ªãƒ¼ãƒãƒ¼ãƒ˜ãƒƒãƒ‰ãŒã‚ã‚Šã¾ã™ã€‚ æ„å‘³ãŒãªã„ã¨ã“ã‚ã§React.memo
mizdra 2021/02/23
react

performance
ãƒªãƒ³ã‚¯
ã€LINEè¨¼åˆ¸ Frontendã€‘requestIdleCallbackã‚’æ´»ç”¨ã—ã¦åˆæœŸãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°æ™‚é–“ã‚’ç´„14%å‰Šæ¸›ã—ãŸè©±
ã“ã‚“ã«ã¡ã¯ã€‚ãƒ•ã‚£ãƒŠãƒ³ã‚·ãƒ£ãƒ«é–‹ç™ºã‚»ãƒ³ã‚¿ãƒ¼ã®éˆ´æœ¨ã§ã™ã€‚LINEè¨¼åˆ¸ã®ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã‚’æ‹…å½“ã—ã¦ã„ã¾ã™ã€‚ã“ã®è¨˜äº‹ã¯ã€LINEè¨¼åˆ¸ FrontEndã€‘ã‚·ãƒªãƒ¼ã‚ºã®4ç•ªç›®ã®è¨˜äº‹ã§ã™ã€‚ æœ€è¿‘ã®Web Vitalsã®éš†ç››ã‚’å—ã‘ã¦ã€LINEè¨¼åˆ¸ã®ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã§ã‚‚ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã®æ”¹å–„ã«å–ã‚Šçµ„ã¿å§‹ã‚ã¾ã—ãŸã€‚ãŠã‚ˆã2é€±é–“ã»ã©æ”¹å–„ã«å–ã‚Šçµ„ã‚“ã çµæžœã¨ã—ã¦ã€é–‹ç™ºç’°å¢ƒã§ã®è¨ˆæ¸¬ã§ã¯Lighthouseã®performanceã‚¹ã‚³ã‚¢ãŒå¾“æ¥ã‚ˆã‚Š30ç‚¹ã»ã©ä¸Šæ˜‡ã—ã¾ã—ãŸã€‚ ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹æ”¹å–„ã®ãŸã‚ã«ã•ã¾ã–ã¾ãªæ–½ç–ã‚’è¡Œã„ã¾ã—ãŸãŒã€ã“ã®è¨˜äº‹ã§ã¯ãã®ä¸ã§ã‚‚èˆˆå‘³æ·±ã‹ã£ãŸã‚‚ã®ã¨ã—ã¦ã€requestIdleCallbackã‚’æ´»ç”¨ã—ã¦Lazy Loadingã•ã‚Œã‚‹ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã®èªã¿è¾¼ã¿ã‚’é…å»¶ã—ã€ãã®çµæžœåˆæœŸãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ã«ã‹ã‹ã‚‹æ™‚é–“ã‚’ç´„14%å‰Šæ¸›ã§ããŸäº‹ä¾‹ã‚’ã”ç´¹ä»‹ã—ã¾ã™ã€‚ ç’°å¢ƒ ä»¥å‰ã®è¨˜äº‹ã§ã”ç´¹ä»‹ã—ãŸã¨ãŠã‚Šã€LINEè¨¼åˆ¸ã®ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã¯Typ
mizdra 2021/02/22
ä¸å¯§ã§è‰¯ã„ã€‚appendChildãªã‚‹ã»ã©ã€‚

performance

frontend

webpack

react

javascript
ãƒªãƒ³ã‚¯
React Server Components ç·ã¾ã¨ã‚
å…ˆæ—¥ã€React Server Componentsã«ã¤ã„ã¦ã¾ã¨ã‚ã‚‹æ©Ÿä¼šãŒã‚ã‚Šã¾ã—ãŸã€‚ ã“ã®è¨˜äº‹ã§ã¯ã€React Server Componentsã®æ¦‚è¦ã¨ã€ãƒ‡ãƒ¢ã‚’è§¦ã‚‹ä¸ã§æ„Ÿã˜ãŸã“ã¨ã«ã¤ã„ã¦ã”ç´¹ä»‹ã—ã¾ã™ã€‚ React Server Componentsã¨ã¯ React Server Componentsã¯ã€Reactã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã‚’ã‚µãƒ¼ãƒãƒ¼ã‚µã‚¤ãƒ‰ã§ãƒ¬ãƒ³ãƒ€ãƒ¼ã™ã‚‹æ–°ã—ã„æŠ€è¡“ã§ã™ã€‚ ä¸€éƒ¨ã®ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã‚’ã‚µãƒ¼ãƒãƒ¼ã‚µã‚¤ãƒ‰ã§ãƒ¬ãƒ³ãƒ€ãƒ¼ã—ã¦ã—ã¾ã†ã“ã¨ã§ã€ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚’ä¸Šã’ã‚‹ã“ã¨ã‚’ç›®çš„ã¨ã—ã¾ã™ã€‚ å›³ã¯ã€ãƒ‡ãƒ¢ã®ç”»é¢ã®ã†ã¡ã€ã‚µãƒ¼ãƒãƒ¼ã§ãƒ¬ãƒ³ãƒ€ãƒ¼ã•ã‚Œã‚‹éƒ¨åˆ†ã‚’é’ã§ã€ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã§ãƒ¬ãƒ³ãƒ€ãƒ¼ã•ã‚Œã‚‹éƒ¨åˆ†ã‚’èµ¤ã§ç¤ºã—ãŸã‚‚ã®ã§ã™ã€‚ ãƒšãƒ¼ã‚¸å…¨ä½“ã‚’ã‚µãƒ¼ãƒãƒ¼ã§ãƒ¬ãƒ³ãƒ€ãƒ¼ã™ã‚‹ã®ã§ã¯ãªãã€ä¸€éƒ¨ã®ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã¯ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã«ãƒ¬ãƒ³ãƒ€ãƒ¼ã•ã›ã¦ã„ã‚‹ã“ã¨ãŒã‚ã‹ã‚Šã¾ã™ã€‚ ã¾ãŸã€React Server Componentsã¯Co
mizdra 2021/02/12
ä¸å¯§ã§åˆ†ã‹ã‚Šã‚„ã™ã„

javascript

react

performance
ãƒªãƒ³ã‚¯
You Need to know SSR - Speaker Deck
ng-japan ã§ç™ºè¡¨ã—ãŸ Server Side Rendering ã®è³‡æ–™ã§ã™ã€‚
mizdra 2020/11/14
è‰¯ã„ã€‚2020å¹´ç‰ˆã‚ã‚Œã°èžã„ã¦ã¿ãŸã„ã€‚

javascript

ssr

spa

react

performance

web
ãƒªãƒ³ã‚¯
Reactã§ãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°å›žæ•°ã‚„ãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ã«ã‹ã‹ã‚‹æ™‚é–“ã‚’ãƒ¦ãƒ‹ãƒƒãƒˆãƒ†ã‚¹ãƒˆã§ãƒ†ã‚¹ãƒˆã§ãã‚‹ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã‚’é–‹ç™ºã—ã¾ã—ãŸ - Qiita
import React from 'react'; import { render, fireEvent, screen } from '@testing-library/react'; import { perf, wait } from 'react-performance-testing'; test('countãƒœã‚¿ãƒ³ã‚’ã‚¯ãƒªãƒƒã‚¯ã—ãŸæ™‚ã«ã€2å›žãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ã™ã‚‹', async () => { const Button = ({ name, onClick }) => ( <button type="button" onClick={onClick}>{name}</button> ); const Counter = () => { const [count, setCount] = React.useState(0); return ( <div> <span>{count}</
mizdra 2020/09/27
ã‚ã¡ã‚ƒã‚ã¡ã‚ƒè‰¯ã„

javascript

testing

performance

react
ãƒªãƒ³ã‚¯
React17ã«ãŠã‘ã‚‹useEffectã®ç ´å£Šçš„å¤‰æ›´ã‚’ç†è§£ã™ã‚‹
ã—ã°ã‚‰ãå‰ã€React 17 RCãŒç™ºè¡¨ã•ã‚Œã¾ã—ãŸã€‚ç¾è¡Œã®React 16ã«æ¯”ã¹ã¦ã€ã„ãã¤ã‹ã®ç ´å£Šçš„å¤‰æ›´ãŒã‚ã‚‹ä¸€æ–¹ã€æ–°æ©Ÿèƒ½ãŒä½•ã‚‚ãªã„ã¨ã„ã†ã®ãŒç‰¹å¾´ã§ã™ã€‚Reactãƒãƒ¼ãƒ ã¨ã—ã¦ã¯ã€æ–°æ©Ÿèƒ½ãŒç„¡ã„ã¨ã¯ã„ãˆã€ç ´å£Šçš„å¤‰æ›´ã‚‚å°‘ãªããªã£ã¦ãŠã‚Šãªã‚‹ã¹ã16ã‹ã‚‰17ã¸ã®ã‚¢ãƒƒãƒ—ãƒ‡ãƒ¼ãƒˆã‚’è¡Œãªã£ã¦ã»ã—ã„ã¨ã„ã†è€ƒãˆã®ã‚ˆã†ã§ã™ã€‚ ã“ã®è¨˜äº‹ã§ã¯ã€React 17ã«ãŠã‘ã‚‹ç ´å£Šçš„å¤‰æ›´ã®ã†ã¡ã€useEffectã®ã‚¯ãƒªãƒ¼ãƒ³ã‚¢ãƒƒãƒ—ã®ã‚¿ã‚¤ãƒŸãƒ³ã‚°ã«é–¢ã™ã‚‹å¤‰æ›´ã‚’å–ã‚Šä¸Šã’ã¾ã™ï¼ˆä»¥ä¸‹ã¯å…¬å¼ã‚µã‚¤ãƒˆã‹ã‚‰å¼•ç”¨ï¼‰ã€‚ In React 17, the effect cleanup function also runs asynchronously â€” for example, if the component is unmounting, the cleanup will run after the screen has been updated.
mizdra 2020/09/22
react

javascript

performance
ãƒªãƒ³ã‚¯
React Fiberç¾çŠ¶ç¢ºèª
F8ã§ã‚‚React Fiberã«ã¤ã„ã¦ã®ç™ºè¡¨ã‚‚ã‚ã£ãŸã®ã§ã€æ°—ã«ãªã£ã¦ã„ã‚‹äººã‚‚å¤šã„React Fiberã®ç¾çŠ¶ã«ã¤ã„ã¦ç°¡å˜ã«æ›¸ããŸã„ã¨æ€ã„ã¾ã™ã€‚ Reactã®å®Œå…¨ãªæ›¸ãæ›ãˆã¨ã„ã†ã“ã¨ã§ã€ä½¿ã„æ–¹ã‚‚å¤‰ã‚ã£ã¦ã—ã¾ã†ã¨æ€ã£ã¦ã„ã‚‹äººã‚‚ã„ã‚‹ã¨æ€ã„ã¾ã™ãŒã€å†…éƒ¨å®Ÿè£…ã®æ›¸ãæ›ãˆã§ã‚ã‚Šã€åˆ©ç”¨è€…ã‹ã‚‰è¦‹ãˆã‚‹éƒ¨åˆ†ã§ã¯ã»ã¨ã‚“ã©å¤‰æ›´ã¯ã‚ã‚Šã¾ã›ã‚“ã€‚ ã‚‚ã¡ã‚ã‚“ã€react-fiberã¨ã„ã†ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã‚’ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã™ã‚‹ã¨ã„ã†ã‚ã‘ã§ã‚‚ã‚ã‚Šã¾ã›ã‚“ã€‚ ã‚€ã—ã‚ã€v16ã®æ™‚ç‚¹ã§ã¯ç¾åœ¨ã®å®Ÿè£…ã¨äº’æ›æ€§ã‚’ä¿ãŸã‚Œã¦ã„ã‚‹ã®ã§ã€v16ãŒãƒªãƒªãƒ¼ã‚¹ã•ã‚ŒãŸæ™‚ã«ã€v15.5ã‚’ä½¿ã£ã¦ã„ã‚Œã°ã»ã¨ã‚“ã©ãã®ã¾ã¾v16ã«æ›´æ–°ã§ãã‚‹ã¨æ€ã„ã¾ã™ã€‚ ãã—ã¦ã€è¨€ã‚ã‚Œãªã‘ã‚Œã°å†…éƒ¨å®Ÿè£…ãŒå¤‰ã‚ã£ã¦ã„ã‚‹ã“ã¨ã«æ°—ã¥ã‹ãªã„ã®ã§ã¯ãªã„ã‹ã¨æ€ã„ã¾ã™ã€‚ ã¨ã‚Šã‚ãˆãšã©ã†ãªã‚‹ã®ã‹çŸ¥ã‚ŠãŸã„äººå‘ã‘ã®ã¾ã¨ã‚ v16ã§ã¯ã€åŸºæœ¬çš„ã«ã¯v15ã®æ™‚ã¨åŒã˜ã‚ˆã†ã«å‹•ä½œã—ã¾ã™ã€‚é€†ã«è¨€ã†ã¨ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚‚ãã‚“ãªã«å¤‰ã‚
mizdra 2020/07/24
react

performance
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ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹æœ€é©åŒ– â€“ React
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mizdra 2020/07/24
react

performance

javascript
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Using the React DevTools Profiler to Diagnose React App Performance Issues | Netlify
The latest version of the React DevTools (released on Aug 23) offers a powerful new tool to detect and diagnose performance issues in your React app: the new Profiler tab! This post describes how we recently used the Profiler to quickly diagnose and fix a known and long-standing performance issue in the clientside display of our server logs on app.netlify.com. Probl em Statement Whenever you trigge
mizdra 2018/09/11
react

performance

javascript
ãƒªãƒ³ã‚¯
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