[B! performance][React] rikubaã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

rikuba id:rikuba

performanceã¨Reactã«é–¢ã™ã‚‹rikubaã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (6)

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ã€ŒWeb Speed Hackathon 2022ã€ã¨ã„ã†ã€Œéžå¸¸ã«é‡ãŸã„Webã‚¢ãƒ—ãƒªã‚’ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã—ã¦ã€ã„ã‹ã«é«˜é€Ÿã«ã™ã‚‹ã‹ã‚’ç«¶ã†ç«¶æŠ€ã€ãŒã‚ã‚Šã¾ã™ã€‚ ãƒªãƒ¢ãƒ¼ãƒˆå‚åŠ ã§11æœˆ1æ—¥ã‹ã‚‰27æ—¥ã¾ã§é–‹å‚¬ã•ã‚Œã¦ã„ã¾ã™ã€‚ ã“ã“ã§è¨€ã†ã€Œé«˜é€Ÿã€ã¨ã¯Core Web Vitalsã®ã‚¹ã‚³ã‚¢ãŒé«˜ã„ã“ã¨ã‚’è¨€ã„ã€Lighthouseã®ã‚¹ã‚³ã‚¢ã‚’ãƒ™ãƒ¼ã‚¹ã«ã—ãŸ500ç‚¹æº€ç‚¹ã®äº‰ã„ã§ã™ã€‚ ISUCONã®ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ç‰ˆã§ã™ãã€‚ ä»¥å‰ã«ã‚‚åŒã˜èª²é¡Œã§ã€Œå¦ç”Ÿå‘ã‘ã€ã¨ã€Œç¤¾å†…ï¼ˆã‚µã‚¤ãƒãƒ¼ã‚¨ãƒ¼ã‚¸ã‚§ãƒ³ãƒˆï¼‰å‘ã‘ã€ãŒè¡Œã‚ã‚ŒãŸã‚‰ã—ãã€ã¾ã 500ç‚¹ã‚’å‡ºã—ãŸäººã¯ã„ã¾ã›ã‚“ã€‚ ãã“ã§åƒ•ã¯ã€Œæº€ç‚¹ã‚’å‡ºã—ãŸã„ã€ã¨æ€ã„ã€åˆæ—¥ã‹ã‚‰ã€ã„ã‚„ã‚€ã—ã‚ãƒ•ãƒ©ã‚¤ãƒ³ã‚°ã—ã¦ã„ãŸã‹ã‚‰ãã®å‰ã‹ã‚‰é ‘å¼µã£ã¦ãã¾ã—ãŸã€‚ ãã—ã¦ã€å…ˆæ—¥ï¼ˆ17æ—¥ï¼‰ã€ã¤ã„ã«500ç‚¹æº€ç‚¹ã‚’å‡ºã—ã¾ã—ãŸï¼ ãŸã¶ã‚“ã€ãƒ¬ã‚®ãƒ¥ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã¯ã‚¯ãƒªã‚¢ã—ã¦ã„ã‚‹ã€ã¯ãšã§ã™ï¼ˆã‚‚ã—é•åã—ã¦ãŸã‚‰ã™ã„ã¾ã›ã‚“â€¦ï¼‰ã€‚ è‡ªå‹•ã§è¡Œã‚ã‚Œã‚‹ã€ŒVisual Re
rikuba 2022/11/22
performance

Core Web Vitals

Cloudflare

React
ãƒªãƒ³ã‚¯
2022å¹´ã«ãŠã‘ã‚‹ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰é–‹ç™ºã®ãƒ™ãƒ¼ã‚¹ãƒ©ã‚¤ãƒ³
LINEæ ªå¼ä¼šç¤¾ã¯ã€2023å¹´10æœˆ1æ—¥ã«LINEãƒ¤ãƒ•ãƒ¼æ ªå¼ä¼šç¤¾ã«ãªã‚Šã¾ã—ãŸã€‚LINEãƒ¤ãƒ•ãƒ¼æ ªå¼ä¼šç¤¾ã®æ–°ã—ã„ãƒ–ãƒã‚°ã¯ã“ã¡ã‚‰ã§ã™ã€‚ LINEãƒ¤ãƒ•ãƒ¼ Tech Blog TL;DR:2022ã«ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰é–‹ç™ºã§æœ€ã‚‚è€ƒæ…®ã™ã¹ããƒ¦ãƒ¼ã‚¶ãƒ¼ç’°å¢ƒã¯ã€ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã§ã¯ä½Žã‚¹ãƒšãƒƒã‚¯ã®Androidç«¯æœ«ã€æ¨™æº–ä»•æ§˜ã§ã¯2å¹´å‰ã®Safariã€ãã—ã¦ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã§ã¯ï¼”Gã§ã™ã€‚ãã‚Œã«å¯¾ã—ã¦ã¯JSã¸ã®éŽå‰°ä¾å˜ãªã©ãŒåŽŸå› ã§ä¸»ã«ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã®é¢ã§ã®ã‚¦ã‚§ãƒ–å…¨ä½“ã®å¯¾å¿œãŒã‚ˆãã‚ã‚Šã¾ã›ã‚“ã€‚ ã“ã‚“ã«ã¡ã¯ï¼LINE ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰é–‹ç™ºå®¤ã®ãƒ€ãƒãƒã‚¹ ã‚¢ãƒ©ãƒ³ã§ã™ã€‚ã“ã®è¨˜äº‹ã®ã‚¿ã‚¤ãƒˆãƒ«ã‚’è¦‹ã¦ã€Œé‡£ã‚Šã‚¿ã‚¤ãƒˆãƒ«ã§ã™ãã€œã€ã¨è€ƒãˆã¦ã„ã‚‹æ–¹ãŒã„ã‚‹ã¨æ€ã„ã¾ã™ãŒä»Šå›žã«é™ã£ã¦ã¯ãã‚Œã‚’å¤§ç›®ã«è¦‹ã¦ãã ã•ã„ã€‚ãã‚Œã¯ãªãœã‹ã¨è¨€ã„ã¾ã™ã¨ã€2021å¹´ã‹ã‚‰2022å¹´ã«ã‹ã‘ã¦ç§ãŸã¡ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ãŒå…¨ä½“çš„ã«è€ƒãˆæ–¹ã‚’æ”¹ã‚ã‚‹å¿…è¦ãŒå‡ºã‚‹ã»ã©å¤§ããªå¤‰åŒ–ãŒã‚ã‚Šã¾ã—ãŸã€‚ ãã®å¤‰
rikuba 2022/09/03
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
rikuba 2021/10/24
â€œmoving state down (and lifting content up!)â€

React

refactoring

performance
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
rikuba 2021/02/24
React

hooks

performance
ãƒªãƒ³ã‚¯
45% Faster React Functional Components, Now
Jump to TL;DR at the end to see one easy change you can apply to your React code to get a free speedup. For more details, read on. I work on Missive, a team em ail/chat client built with React. It uses a multi-column layout to display conversations. On â¬†ï¸Žï¸â¬‡ key presses, the app navigates to a new conversation. It needs to do so in as few milliseconds as possible to avoid any user-perceivable delay.
rikuba 2017/05/10
React

performance
ãƒªãƒ³ã‚¯
Twitter Lite and High Performance React Progressive Web Apps at Scale
A look into removing common and uncommon performance bottlenecks in one of the worlds largest React.js PWAs, Twitter Lite. Creating a fast web application involves many cycles of measuring where time is wasted, understanding why itâ€™s happening, and applying potential solutions. Unfortunately, thereâ€™s never just one quick fix. Performance is a continuous game of watching and measuring for areas to
rikuba 2017/04/13
performance

webpack

React

redux
ãƒªãƒ³ã‚¯
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