{"id":9291,"date":"2025-10-13T07:22:36","date_gmt":"2025-10-13T07:22:36","guid":{"rendered":"https:\/\/pokecon.jp\/job\/?p=9291"},"modified":"2025-10-13T07:22:36","modified_gmt":"2025-10-13T07:22:36","slug":"react-conf-2025","status":"publish","type":"post","link":"https:\/\/pokecon.jp\/job\/9291\/","title":{"rendered":"React Conf 2025"},"content":{"rendered":"\n<\/p>\n<div id=\"\">\n<h3 class=\"kiZNFL hGHvhs ljIhoq facgvO hBirAB dXdGnp jrpcxw fzBLuJ cbWDxH jkcQii jTWvec markdown_heading\" id=\"introduction\" title=\"introduction\"><a target=\"_blank\" aria-hidden=\"true\" href=\"#introduction\" tabindex=\"-1\">Introduction<\/a><\/h3>\n<p class=\"jdmOYL\">React Conf 2025 \u306e\u306f\u3058\u307e\u308a\u306f\u3001 Seth Webster \u6c0f\u306e\u6328\u62f6\u304b\u3089\u59cb\u307e\u3063\u305f\u3002<br \/>\n\u77ed\u3044\u6328\u62f6\u3060\u3063\u305f\u304c\u3001\u305d\u306e\u4e2d\u3067\u5f7c\u306f React \u306e\u7d20\u6674\u3089\u3057\u3055\u306f\u305f\u3060\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u306f\u306a\u304f\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e\u5927\u304d\u3055\u306b\u3042\u308b\u3068\u8a9e\u3063\u305f\u3002<\/p>\n<p class=\"jdmOYL\">\u79c1\u3082\u540c\u610f\u898b\u3067\u3001 React \u306f\u305d\u308c\u81ea\u4f53\u304c\u7d20\u6674\u3089\u3057\u3044\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3042\u308b\u3053\u3068\u306f\u9593\u9055\u3044\u306a\u3044\u304c\u3001\u305d\u308c\u4ee5\u4e0a\u306b Web \u3084\u305d\u308c\u4ee5\u5916\u306e\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u958b\u767a\u306b\u5bfe\u3059\u308b\u4eba\u3005\u306e\u8003\u3048\u65b9\u3092\u5927\u304d\u304f\u5909\u3048\u305f\u3053\u3068\u304c\u91cd\u8981\u3060\u3068\u601d\u3046\u3002<\/p>\n<\/div>\n<div id=\"\">\n<h3 class=\"kiZNFL hGHvhs ljIhoq facgvO hBirAB dXdGnp jrpcxw fzBLuJ cbWDxH jkcQii jTWvec markdown_heading\" id=\"react-keynote\" title=\"react-keynote\"><a target=\"_blank\" aria-hidden=\"true\" href=\"#react-keynote\" tabindex=\"-1\">React Keynote<\/a><\/h3>\n<p class=\"jdmOYL\">React Keynote \u306f\u3001 React core team \u306e\u30e1\u30f3\u30d0\u30fc\u305f\u3061\u304c\u767b\u58c7\u3057\u3001 React 19.2 \u306e\u65b0\u6a5f\u80fd\u3092\u304a\u3055\u3089\u3044\u3057\u3001 canary release \u306b\u65b0\u3057\u304f\u4e57\u308b\u4e88\u5b9a\u306e\u6a5f\u80fd\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u305f\u3002<\/p>\n<p class=\"jdmOYL\">\u307e\u305a\u306f Joe Savona \u6c0f\u304c\u767b\u5834\u3057\u3001Suepsense \u306e Sibling pre warming \u3084 React Server Components \u3092\u4f8b\u306b\u3068\u308a\u3001 React \u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306b\u306f\u305f\u304f\u3055\u3093\u306e\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u304c\u53cd\u6620\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u5f37\u8abf\u3057\u3001\u611f\u8b1d\u306e\u610f\u3092\u8ff0\u3079\u305f\u3002<\/p>\n<p class=\"jdmOYL\">\u305d\u306e\u5f8c\u3001 AI \u3068\u306e\u5411\u304d\u5408\u3044\u65b9\u306b\u3064\u3044\u3066\u8a9e\u3063\u3066\u3044\u305f\u306e\u304c\u500b\u4eba\u7684\u306b\u5370\u8c61\u7684\u3060\u3063\u305f\u3002<br \/>\n\u4eba\u9593\u306b\u3068\u3063\u3066\u4f7f\u3044\u3084\u3059\u3044\u4f53\u9a13\u306f\u3001 AI \u306b\u3068\u3063\u3066\u3082\u4f7f\u3044\u3084\u3059\u3044\u4f53\u9a13\u3067\u3042\u308b\u3079\u304d\u3067\u3042\u308a\u3001React core team \u306f\u5e38\u306b\u3001\u8ab0\u3082\u304c\u7c21\u5358\u306b\u7d20\u6674\u3089\u3057\u3044\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u63d0\u4f9b\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3092\u76ee\u6307\u3057\u3066\u3044\u308b\u3002<br \/>\n\u3053\u306e\u8003\u3048\u3092\u7dcf\u62ec\u3059\u308b\u30b9\u30e9\u30a4\u30c9\u3068\u3057\u3066\u300cResponsive User Experiences\u300d\u3067\u307e\u3068\u3081\u3089\u308c\u3066\u3044\u305f\u306e\u304c\u5370\u8c61\u7684\u3060\u3063\u305f\u3002<br \/>\n<img alt=\"Responsive User Experiences\" decoding=\"async\" height=\"1080\" loading=\"lazy\" src=\"\/img\/reactconf_1-T0pF2APf-1920x1080.webp 1920w \/img\/reactconf_1-T0pF2APf-1344x756.webp 1344w \/img\/reactconf_1-T0pF2APf-941x529.webp 941w \/img\/reactconf_1-T0pF2APf-659x370.webp 659w \/img\/reactconf_1-T0pF2APf-461x259.webp 461w \/img\/reactconf_1-T0pF2APf-323x182.webp 323w\" width=\"1920\"\/><\/p>\n<p class=\"jdmOYL\">\u7d9a\u3044\u3066\u3001 Mofei Zhang \u6c0f\u304c\u767b\u58c7\u3057\u3001 React 19.2 \u306e\u65b0\u6a5f\u80fd\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u305f\u3002<br \/>\n\u4eca\u56de\u306e\u5909\u66f4\u3067\u69d8\u3005\u306a\u9b45\u529b\u7684\u306a\u6a5f\u80fd\u304c\u591a\u304f\u8ffd\u52a0\u3055\u308c\u305f\u304c\u3001\u4e2d\u3067\u3082\u5f7c\u5973\u306f <code class=\"cbxutX iMTzzS cKDsxM atQQh kDkpvL fjBtaK eKuzGa\"><activity\/><\/code> \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u5965\u6df1\u3055\u306b\u3064\u3044\u3066\u8a9e\u3063\u3066\u3044\u305f\u3002<br \/>\n\u5f7c\u5973\u306f\u3001\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u304c\u3053\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u5358\u306b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u53ef\u8996\u72b6\u614b\u3092\u5236\u5fa1\u3059\u308b\u305f\u3081\u306e\u3082\u306e\u3068\u3057\u304b\u6349\u3048\u3066\u3044\u306a\u3044\u3053\u3068\u306b\u61f8\u5ff5\u3092\u793a\u3057\u3066\u3044\u305f\u3002<br \/>\n\u5b9f\u969b\u306f React Fiber \u306e\u30b9\u30b1\u30b8\u30e5\u30fc\u30ea\u30f3\u30b0\u6a5f\u69cb\u3068\u5bc6\u63a5\u306b\u95a2\u9023\u3057\u3066\u3044\u3066\u3001<code class=\"cbxutX iMTzzS cKDsxM atQQh kDkpvL fjBtaK eKuzGa\">mode='hidden'<\/code> \u306a\u5b50\u8981\u7d20\u306b\u95a2\u3057\u3066\u306f\u6700\u4f4e\u512a\u5148\u5ea6\u306e\u30ec\u30fc\u30f3\u306b\u5206\u985e\u3055\u308c SSR \u306f\u3055\u308c\u305a\u3001 re-hydration \u3082\u3055\u308c\u306a\u3044\u3002<br \/>\n\u4e00\u65b9\u3067\u4e09\u9805\u6f14\u7b97\u5b50\u306a\u3069\u3067\u8868\u793a\u5236\u5fa1\u3092\u3057\u3066\u3044\u308b\u3082\u306e\u3068\u9055\u3044\u3001 React \u306f DOM \u306e\u69cb\u9020\u3068\u72b6\u614b\u3092\u4fdd\u6301\u3057\u3001\u305d\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u95a2\u9023\u3059\u308b\u526f\u4f5c\u7528\u306f\u30a2\u30f3\u30de\u30a6\u30f3\u30c8\u3055\u308c\u305f\u307e\u307e\u306b\u306a\u308b\u3002<br \/>\n\u3053\u306e\u9055\u3044\u306f\u3001\u5909\u66f4\u304c commit \u3055\u308c\u3066\u304b\u3089\u305d\u308c\u3092\u5b9f\u969b\u306e DOM \u306b\u53cd\u6620\u3055\u308c\u308b\u307e\u3067\u306e\u9593\u306b\u3001\u975e\u53ef\u8996\u72b6\u614b\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u3082\u95a2\u308f\u308b\u526f\u4f5c\u7528\u304c\u767a\u751f\u3059\u308b\u5834\u5408\u306b\u91cd\u8981\u3068\u306a\u308b\u3002<br \/>\ncommit \u306b\u53cd\u5fdc\u3059\u308b\u6642\u9593\u306f\u3001\u3069\u3061\u3089\u3082\u540c\u3058\u3067\u3042\u308b\u305f\u3081 INP \u306f\u540c\u3058\u306b\u306a\u308b\u304c\u3001FID \u306f\u5927\u304d\u304f\u7570\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/p>\n<p class=\"jdmOYL\"><img alt=\"Without Activity\" decoding=\"async\" height=\"1080\" loading=\"lazy\" src=\"\/img\/reactconf_2-j6Z7S9g5-1920x1080.webp 1920w \/img\/reactconf_2-j6Z7S9g5-1344x756.webp 1344w \/img\/reactconf_2-j6Z7S9g5-941x529.webp 941w \/img\/reactconf_2-j6Z7S9g5-659x370.webp 659w \/img\/reactconf_2-j6Z7S9g5-461x259.webp 461w \/img\/reactconf_2-j6Z7S9g5-323x182.webp 323w\" width=\"1920\"\/><\/p>\n<p class=\"jdmOYL\"><img alt=\"With Activity\" decoding=\"async\" height=\"1080\" loading=\"lazy\" src=\"\/img\/reactconf_3-Bq+Z6LO7-1920x1080.webp 1920w \/img\/reactconf_3-Bq+Z6LO7-1344x756.webp 1344w \/img\/reactconf_3-Bq+Z6LO7-941x529.webp 941w \/img\/reactconf_3-Bq+Z6LO7-659x370.webp 659w \/img\/reactconf_3-Bq+Z6LO7-461x259.webp 461w \/img\/reactconf_3-Bq+Z6LO7-323x182.webp 323w\" width=\"1920\"\/><\/p>\n<p class=\"jdmOYL\">\u7d9a\u3044\u3066\u3001Jack Pope \u6c0f\u304c\u767b\u5834\u3057\u3001 React core team \u304c\u4eca\u53d6\u308a\u7d44\u3093\u3067\u3044\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u305f\u3002<br \/>\nReact \u306b\u306f\u79c1\u9054\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u8005\u304c\u4f7f\u7528\u3059\u308b stable release \u306e\u4ed6\u306b\u3001experimental release \u3068 canary release \u304c\u5b58\u5728\u3059\u308b\u3002<br \/>\njack \u6c0f\u306f\u3001React \u306b\u95a2\u3059\u308b\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u958b\u767a\u3057\u3066\u3044\u308b\u4eba\u306b\u306f\u305c\u3072\u3068\u3082 canary release \u306e\u5909\u66f4\u3092\u8ffd\u3044\u304b\u3051\u3066\u307b\u3057\u3044\u3068\u8a9e\u3063\u305f\u3002<br \/>\ncanary release \u306f\u3001 React core team \u304c\u6b21\u306b stable release \u306b\u4e57\u305b\u308b\u4e88\u5b9a\u306e\u6a5f\u80fd\u3092\u3044\u3061\u65e9\u304f\u8a66\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u30ea\u30ea\u30fc\u30b9\u3067\u3042\u308a\u3001\u4eca\u56de\u65b0\u3057\u304f\u4ee5\u4e0b\u306e\u6a5f\u80fd\u304c\u8ffd\u52a0\u3055\u308c\u305f\u3002<\/p>\n<ul class=\"jftpCC jNOxdF daDJvV kwORxP XluZh fznPoi\">\n<li>\n<p class=\"jdmOYL\">View Transition<\/p>\n<\/li>\n<li>\n<p class=\"jdmOYL\">Fragment refs<\/p>\n<\/li>\n<\/ul>\n<p class=\"jdmOYL\">View Transition \u306f Web API \u306e 1 \u3064\u306b\u3042\u308a\u3001 React \u3067\u3082 <code class=\"cbxutX iMTzzS cKDsxM atQQh kDkpvL fjBtaK eKuzGa\">flushSync<\/code> \u3092\u7528\u3044\u308b\u3053\u3068\u3067\u4f7f\u7528\u306f\u3067\u304d\u305f\u3002<br \/>\n\u3057\u304b\u3057\u3001\u540c\u671f\u7684\u306a\u66f4\u65b0\u3059\u308b\u305f\u3081\u4e26\u884c\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3068\u306f\u76f8\u6027\u304c\u60aa\u304b\u3063\u305f\u3002<br \/>\n\u4eca\u56de\u306e canary release \u306b\u4e57\u3063\u305f ViewTransition \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u3001\u9045\u5ef6\u51e6\u7406\u3068 Suspense \u3092\u30c8\u30ea\u30ac\u30fc\u3068\u3057\u3066\u30d2\u30e5\u30fc\u30ea\u30b9\u30c6\u30a3\u30c3\u30af\u306b\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3059\u308b\u8981\u7d20\u3092\u6c7a\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u4e26\u884c\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3068\u76f8\u6027\u306e\u826f\u3044\u5f62\u3067 View Transition \u3092\u5b9f\u73fe\u3057\u3066\u3044\u308b\u3002<\/p>\n<p class=\"jdmOYL\"><img alt=\"View Transition\" decoding=\"async\" height=\"1080\" loading=\"lazy\" src=\"\/img\/reactconf_4-NOgwkUni-1920x1080.webp 1920w \/img\/reactconf_4-NOgwkUni-1344x756.webp 1344w \/img\/reactconf_4-NOgwkUni-941x529.webp 941w \/img\/reactconf_4-NOgwkUni-659x370.webp 659w \/img\/reactconf_4-NOgwkUni-461x259.webp 461w \/img\/reactconf_4-NOgwkUni-323x182.webp 323w\" width=\"1920\"\/><\/p>\n<p class=\"jdmOYL\">Fragment refs \u306f\u3001 Fragment \u306b ref \u3092\u6e21\u305b\u308b\u3088\u3046\u306b\u3059\u308b\u6a5f\u80fd\u3067\u3042\u308b\u3002<br \/>\n\u3053\u308c\u307e\u3067\u3001Web API \u3092\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u6271\u3046\u5834\u5408\u3001\u30ab\u30b9\u30bf\u30e0\u30d5\u30c3\u30af\u3084 render prop \u3092\u7528\u3044\u305f\u308a\u3001ref \u3092\u6b63\u3057\u3044\u4f4d\u7f6e\u3067\u53d6\u5f97\u3059\u308b\u305f\u3081\u306b\u5b50\u8981\u7d20\u306e\u5468\u308a\u306b\u5225\u306e div \u8981\u7d20\u3092\u8ffd\u52a0\u3057\u305f\u308a\u3059\u308b\u5fc5\u8981\u304c\u3042\u3063\u305f\u3002<br \/>\nFragment refs \u3092\u7528\u3044\u308b\u3053\u3068\u3067\u3001\u3053\u308c\u3089\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u3002<\/p>\n<p class=\"jdmOYL\"><img alt=\"Fragment refs\" decoding=\"async\" height=\"1080\" loading=\"lazy\" src=\"\/img\/reactconf_5-wpQ54OU2-1920x1080.webp 1920w \/img\/reactconf_5-wpQ54OU2-1344x756.webp 1344w \/img\/reactconf_5-wpQ54OU2-941x529.webp 941w \/img\/reactconf_5-wpQ54OU2-659x370.webp 659w \/img\/reactconf_5-wpQ54OU2-461x259.webp 461w \/img\/reactconf_5-wpQ54OU2-323x182.webp 323w\" width=\"1920\"\/><\/p>\n<p class=\"jdmOYL\">\u3053\u306e <code class=\"cbxutX iMTzzS cKDsxM atQQh kDkpvL fjBtaK eKuzGa\">FragmentInstance<\/code> \u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b blur \u3084 addEventListener \u306a\u3069\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u5b58\u5728\u3059\u308b\u3002<\/p>\n<div><span class=\"fPSBzf iRgpoQ pThsL jbcyii jbcVIw jbiyJu fzpbDp\"><a target=\"_blank\" class=\"XtMDq XzkjQ epsXcB\" href=\"https:\/\/github.com\/DefinitelyTyped\/DefinitelyTyped\/blob\/2b34e30eb8ea7bd37fbed3b32eaabfdb4d23f678\/types\/react-dom\/canary.d.ts#L49-L69\" rel=\"noreferrer\" target=\"_blank\"><span class=\"hGHvhs\">DefinitelyTyped\/DefinitelyTyped\/types\/react-dom\/canary.d.ts<\/span><\/a><span>Lines <!-- -->49<!-- --> to <!-- -->69<!-- --> in<!-- --> <a target=\"_blank\" class=\"XtMDq XzkjQ epsXcB\" href=\"https:\/\/github.com\/DefinitelyTyped\/DefinitelyTyped\/commit\/2b34e30eb8ea7bd37fbed3b32eaabfdb4d23f678\" rel=\"noreferrer\" target=\"_blank\"><span>2b34e30eb8<\/span><\/a><\/span><\/span><\/p>\n<div class=\"gyngXe bErrUh QqiLv hhwIzy fSxPrl byaFfl loovcm eoVCwg jbhapY jbcyii kDkpvL fzFRHy fzoNvZ coifMe fzoNwz\">\n<pre class=\"shiki vitesse-dark\" style=\"color: #dbd7cacc;\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color:#758575DD\">    \/\/ @enableFragmentRefs<\/span><\/span>\n<span class=\"line\"><span style=\"color:#CB7676\">    interface<\/span><span style=\"color:#5DA994\"> FragmentInstance<\/span><span style=\"color:#666666\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color:#80A665\">        blur<\/span><span style=\"color:#666666\">: () =&gt; <\/span><span style=\"color:#5DA994\">void<\/span><span style=\"color:#666666\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color:#80A665\">        focus<\/span><span style=\"color:#666666\">: (<\/span><span style=\"color:#BD976A\">focusOptions<\/span><span style=\"color:#CB7676\">?<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">FocusOptions<\/span><span style=\"color:#666666\"> | <\/span><span style=\"color:#CB7676\">undefined<\/span><span style=\"color:#666666\">) =&gt; <\/span><span style=\"color:#5DA994\">void<\/span><span style=\"color:#666666\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color:#80A665\">        focusLast<\/span><span style=\"color:#666666\">: (<\/span><span style=\"color:#BD976A\">focusOptions<\/span><span style=\"color:#CB7676\">?<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">FocusOptions<\/span><span style=\"color:#666666\"> | <\/span><span style=\"color:#CB7676\">undefined<\/span><span style=\"color:#666666\">) =&gt; <\/span><span style=\"color:#5DA994\">void<\/span><span style=\"color:#666666\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color:#80A665\">        observeUsing<\/span><span style=\"color:#666666\">(<\/span><span style=\"color:#BD976A\">observer<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">IntersectionObserver<\/span><span style=\"color:#666666\"> | <\/span><span style=\"color:#5DA994\">ResizeObserver<\/span><span style=\"color:#666666\">):<\/span><span style=\"color:#5DA994\"> void<\/span><span style=\"color:#666666\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color:#80A665\">        unobserveUsing<\/span><span style=\"color:#666666\">(<\/span><span style=\"color:#BD976A\">observer<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">IntersectionObserver<\/span><span style=\"color:#666666\"> | <\/span><span style=\"color:#5DA994\">ResizeObserver<\/span><span style=\"color:#666666\">):<\/span><span style=\"color:#5DA994\"> void<\/span><span style=\"color:#666666\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color:#80A665\">        getClientRects<\/span><span style=\"color:#666666\">():<\/span><span style=\"color:#5DA994\"> Array<\/span><span style=\"color:#666666\"><span style=\"color:#5DA994\">DOMRect<\/span><span style=\"color:#666666\">&gt;;<\/span><\/span>\n<span class=\"line\"><span style=\"color:#80A665\">        getRootNode<\/span><span style=\"color:#666666\">(<\/span><span style=\"color:#BD976A\">getRootNodeOptions<\/span><span style=\"color:#CB7676\">?<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">GetRootNodeOptions<\/span><span style=\"color:#666666\"> | <\/span><span style=\"color:#CB7676\">undefined<\/span><span style=\"color:#666666\">):<\/span><span style=\"color:#5DA994\"> Document<\/span><span style=\"color:#666666\"> |<\/span><span style=\"color:#5DA994\"> ShadowRoot<\/span><span style=\"color:#666666\"> |<\/span><span style=\"color:#5DA994\"> FragmentInstance<\/span><span style=\"color:#666666\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color:#80A665\">        addEventListener<\/span><span style=\"color:#666666\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color:#BD976A\">            type<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">string<\/span><span style=\"color:#666666\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color:#BD976A\">            listener<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">EventListener<\/span><span style=\"color:#666666\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color:#BD976A\">            optionsOrUseCapture<\/span><span style=\"color:#CB7676\">?<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">Parameters<\/span><span style=\"color:#666666\"><span style=\"color:#5DA994\">Element<\/span><span style=\"color:#666666\">[<\/span><span style=\"color:#C98A7D77\">\"<\/span><span style=\"color:#C98A7D\">addEventListener<\/span><span style=\"color:#C98A7D77\">\"<\/span><span style=\"color:#666666\">]&gt;[<\/span><span style=\"color:#4C9A91\">2<\/span><span style=\"color:#666666\">],<\/span><\/span>\n<span class=\"line\"><span style=\"color:#666666\">        ):<\/span><span style=\"color:#5DA994\"> void<\/span><span style=\"color:#666666\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color:#80A665\">        removeEventListener<\/span><span style=\"color:#666666\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color:#BD976A\">            type<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">string<\/span><span style=\"color:#666666\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color:#BD976A\">            listener<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">EventListener<\/span><span style=\"color:#666666\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color:#BD976A\">            optionsOrUseCapture<\/span><span style=\"color:#CB7676\">?<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">Parameters<\/span><span style=\"color:#666666\"><span style=\"color:#5DA994\">Element<\/span><span style=\"color:#666666\">[<\/span><span style=\"color:#C98A7D77\">\"<\/span><span style=\"color:#C98A7D\">removeEventListener<\/span><span style=\"color:#C98A7D77\">\"<\/span><span style=\"color:#666666\">]&gt;[<\/span><span style=\"color:#4C9A91\">2<\/span><span style=\"color:#666666\">],<\/span><\/span>\n<span class=\"line\"><span style=\"color:#666666\">        ):<\/span><span style=\"color:#5DA994\"> void<\/span><span style=\"color:#666666\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color:#80A665\">        scrollIntoView<\/span><span style=\"color:#666666\">(<\/span><span style=\"color:#BD976A\">alignToTop<\/span><span style=\"color:#CB7676\">?<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">boolean<\/span><span style=\"color:#666666\">):<\/span><span style=\"color:#5DA994\"> void<\/span><span style=\"color:#666666\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color:#666666\">    }<\/span><\/span><\/span><\/span><\/span><\/code><\/pre>\n<\/div>\n<\/div>\n<p class=\"jdmOYL\">\u307e\u305f Jack \u6c0f\u306f\u3001\u30c7\u30b6\u30a4\u30f3\u30b7\u30b9\u30c6\u30e0\u306a\u3069\u306e\u3059\u3067\u306b DOM \u69cb\u9020\u304c\u6c7a\u307e\u3063\u3066\u3044\u3066\u3001\u304b\u3064 ref \u3092 props \u3068\u3057\u3066\u53d7\u3051\u4ed8\u3051\u306a\u3044\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u5bfe\u8a71\u3059\u308b\u969b\u306b\u3001 Fragment refs \u304c\u5f79\u7acb\u3064\u3068\u8a9e\u3063\u305f\u3002<\/p>\n<p class=\"jdmOYL\">\u6b21\u306b Lauren Tan \u6c0f\u304c\u767b\u58c7\u3057\u3001 React Compiler \u306e\u73fe\u5728\u5730\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u305f\u3002<br \/>\nReact Compiler v1 \u304c\u767a\u8868\u3055\u308c\u305f\uff01\uff01\uff01\uff01<br \/>\nReact Compiler \u306e\u69cb\u60f3\u304c\u767a\u8868\u3055\u308c\u305f\u65e5\u304b\u3089\u5e38\u306b\u6ce8\u76ee\u3057\u3066\u3044\u305f\u305f\u3081\u3001\u975e\u5e38\u306b\u5b09\u3057\u3044\u767a\u8868\u3060\u3063\u305f\u3002<\/p>\n<p class=\"jdmOYL\">\u53bb\u5e74\u306e React Conf \u3067 Lauren \u6c0f\u306f Bluesky \u306b\u5bfe\u3057\u3066 React Compiler \u3092\u5c0e\u5165\u3059\u308b\u30c7\u30e2\u3092\u884c\u3063\u3066\u3044\u305f\u3002<br \/>\n\u305d\u306e\u4e2d\u3067\u3001Bluesky \u304c React Compiler \u3092\u5c0e\u5165\u3057\u305f\u521d\u3081\u3066\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3042\u308b\u3068\u8a9e\u3063\u3066\u304a\u308a\u3001Facebook \u3084 Instagram \u3067\u5148\u306b\u5c0e\u5165\u3055\u308c\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u4e88\u60f3\u3057\u3066\u3044\u305f\u305f\u3081\u3001\u610f\u5916\u3060\u3063\u305f\u3002<\/p>\n<p class=\"jdmOYL\">\u7d9a\u3044\u3066\u3001 <code class=\"cbxutX iMTzzS cKDsxM atQQh kDkpvL fjBtaK eKuzGa\">eslint-plugin-react-hooks<\/code> \u306e\u65b0\u3057\u3044\u30eb\u30fc\u30eb\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3055\u308c\u305f\u3002<br \/>\nReact Compiler \u306e\u89e3\u6790\u57fa\u76e4\u306e\u6069\u6075\u3092\u53d7\u3051\u308b\u3053\u3068\u3067\u3001\u3053\u308c\u307e\u3067\u691c\u67fb\u304c\u96e3\u89e3\u3060\u3063\u305f React \u306e hooks \u3084\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306b\u95a2\u3059\u308b\u65b0\u3057\u3044\u30eb\u30fc\u30eb\u304c\u8ffd\u52a0\u3055\u308c\u305f\u3002<\/p>\n<p class=\"jdmOYL\"><img alt=\"i know react\" decoding=\"async\" height=\"1080\" loading=\"lazy\" src=\"\/img\/reactconf_6-UQWUyLwW-1920x1080.webp 1920w \/img\/reactconf_6-UQWUyLwW-1344x756.webp 1344w \/img\/reactconf_6-UQWUyLwW-941x529.webp 941w \/img\/reactconf_6-UQWUyLwW-659x370.webp 659w \/img\/reactconf_6-UQWUyLwW-461x259.webp 461w \/img\/reactconf_6-UQWUyLwW-323x182.webp 323w\" width=\"1920\"\/><\/p>\n<p class=\"jdmOYL\">\u307e\u305f\u3001 Lauren \u6c0f\u306f\u767a\u8868\u306e\u6700\u5f8c\u306b\u300cReact Compiler teaches best practices\u300d\u3068\u8a9e\u3063\u305f\u3002<br \/>\n\u3053\u308c\u306f\u3068\u3066\u3082\u91cd\u8981\u306a\u3053\u3068\u3067\u3001 React Compiler \u306f\u5358\u306b\u30b3\u30fc\u30c9\u3092\u6700\u9069\u5316\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u958b\u767a\u8005\u304c\u3088\u308a\u826f\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u624b\u52a9\u3051\u3092\u3059\u308b\u3053\u3068\u3082\u76ee\u6307\u3057\u3066\u3044\u308b\u3002<br \/>\nReact Compiler \u306f\u5c06\u6765\u7684\u306a React \u306e\u57fa\u76e4\u306b\u306a\u308b\u3001\u305d\u3046\u5f37\u304f\u611f\u3058\u305f\u3002<\/p>\n<p class=\"jdmOYL\">\u3053\u3053\u304b\u3089\u306f\u79c1\u306e\u622f\u8a00\u3060\u304c\u3001React Compiler \u306f\u73fe\u72b6 babel \u30d7\u30e9\u30b0\u30a4\u30f3\u3068\u3057\u3066\u63d0\u4f9b\u3055\u308c\u3066\u304a\u308a\u3001\u5b9f\u614b\u3068\u3057\u3066\u306f babel AST \u3092\u59cb\u3081\u3068\u3057\u305f babel runtime \u306b\u5f37\u304f\u4f9d\u5b58\u3057\u3066\u3044\u308b\u3002<br \/>\n\u305d\u306e\u305f\u3081\u3001\u6628\u4eca\u8a71\u984c\u306b\u306a\u308b Rust \u88fd\u306e\u9ad8\u901f\u306a\u30b3\u30f3\u30d1\u30a4\u30e9\u57fa\u76e4\u3092\u7528\u3044\u305f\u6280\u8853\u3068\u306e\u89aa\u548c\u6027\u304c\u4f4e\u3044\u3068\u611f\u3058\u3066\u3044\u308b\u3002<br \/>\n\u6280\u8853\u306e\u6c11\u4e3b\u5316\u304c\u9032\u3080\u4e2d\u3067\u3001\u3088\u308a\u591a\u304f\u306e\u4eba\u3005\u304c\u30b3\u30f3\u30d1\u30a4\u30e9\u6280\u8853\u306e\u6069\u6075\u3092\u53d7\u3051\u308b\u305f\u3081\u306b\u306f\u3001 React Compiler \u81ea\u4f53\u3082\u3088\u308a\u591a\u304f\u306e\u57fa\u76e4\u3067\u52d5\u4f5c\u3059\u308b\u3053\u3068\u304c\u671b\u307e\u3057\u3044\u3068\u8003\u3048\u3066\u3044\u308b\u3002<\/p>\n<p class=\"jdmOYL\">\u307e\u305f\u3001\u79c1\u304c\u500b\u4eba\u7684\u306b\u6050\u308c\u3066\u3044\u308b\u306e\u306f React Compiler \u3068 TypeScript Compiler \u304c\u540c\u3058\u3067\u3001\u6319\u52d5\u304c\u552f\u4e00\u306e\u4ed5\u69d8\u306b\u306a\u3063\u3066\u3044\u3066\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u3057\u3066\u306e\u4ed5\u69d8\u304c\u5b58\u5728\u3057\u306a\u3044\u3053\u3068\u3060\u3002<br \/>\n\u3053\u308c\u306f\u3001\u5148\u7a0b\u306e\u6280\u8853\u306e\u6c11\u4e3b\u5316\u306e\u89b3\u70b9\u304b\u3089\u3082\u554f\u984c\u304c\u3042\u308b\u3068\u8003\u3048\u3066\u3044\u308b\u3002<br \/>\n\u9577\u3089\u304f\u306e\u9593 TypeScript Compiler \u306e\u5225\u8a00\u8a9e\u306b\u3088\u308b\u518d\u5b9f\u88c5\u306f\u8a66\u307f\u3089\u308c\u305f\u304c\u3001\u4e92\u63db\u6027\u3092\u4fdd\u3064\u3053\u3068\u304c\u96e3\u3057\u304f\u3001\u6700\u7d42\u7684\u306b\u306f Microsoft \u81ea\u8eab\u304c\u4eba\u3092\u6295\u5165\u3057\u5225\u8a00\u8a9e\u306b\u3088\u308b\u518d\u5b9f\u88c5\u3057\u305f\u3002<br \/>\nReact Compiler \u3082\u540c\u69d8\u306e\u554f\u984c\u306b\u76f4\u9762\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3068\u8003\u3048\u3066\u3044\u308b\u3002<br \/>\n\u3053\u308c\u306b\u3064\u3044\u3066\u3001\u5b9f\u969b\u306b Joe Savona \u6c0f\u3078\u8cea\u554f\u3059\u308b\u6a5f\u4f1a\u304c\u3042\u3063\u305f\u305f\u3081\u3001\u5f7c\u306e\u56de\u7b54\u3092\u4ee5\u4e0b\u306b\u5f15\u7528\u3059\u308b\u3002<\/p>\n<blockquote class=\"qfvSf dAsDhE dsPwCU kzLnzs jFVWyW itIrGM hPBvWH dVzwcO AxhTk\">\n<p class=\"jdmOYL\">About formalization of the compiler \u2014 we&#8217;re still iterating substantially on the core of the compiler and the kinds of things that we&#8217;re building on top of it. For example, all the stuff we built for Forest and Fir that isn&#8217;t OSS yet, plus more external experiments we didn&#8217;t even have time to get into<\/p>\n<p class=\"jdmOYL\">With complicated systems like the compiler (and TypeScript) it really does not make sense to have multiple implementations. The language spec is the shared, formalized thing. That&#8217;s what lets the community build incredible tooling around it.<\/p>\n<p class=\"jdmOYL\">So the path for things like biome or oxlint is that we should wrap the existing compiler in a lightweight Rust plugin that just executes the JS version<\/p>\n<\/blockquote>\n<p class=\"jdmOYL\">\u8907\u96d1\u306a\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3044\u3066\u8907\u6570\u5b9f\u88c5\u306f\u610f\u5473\u3092\u306a\u3055\u305a\u3001\u8a00\u8a9e\u4ed5\u69d8\u3053\u305d\u304c\u5171\u6709\u3055\u308c\u5f62\u5f0f\u5316\u3055\u308c\u305f\u57fa\u76e4\u3067\u3042\u308b\u3079\u304d\u3001\u3068\u3044\u3046\u306e\u306f\u79c1\u3082\u540c\u610f\u898b\u3060\u3002<br \/>\n\u3053\u306e\u610f\u898b\u3092\u8e0f\u307e\u3048\u3066\u8003\u3048\u3066\u307f\u308b\u3068\u3001 React Compiler \u3068\u540c\u6642\u306b eslint rules \u3082\u65b0\u305f\u306b\u958b\u767a\u3055\u308c\u305f\u306e\u306f\u3001\u9759\u7684\u89e3\u6790\u3068\u3044\u3046\u624b\u6bb5\u3067\u79c1\u9054\u306b React core team \u304c\u8003\u3048\u308b React \u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u4f1d\u3048\u305f\u3044\u3001\u3068\u3044\u3046\u610f\u56f3\u304c\u3042\u308b\u306e\u304b\u3082\u3057\u308c\u306a\u3044\u3002<\/p>\n<p class=\"jdmOYL\">\u6700\u5f8c\u306b\u518d\u5ea6 Seth Webster \u6c0f\u304c\u767b\u58c7\u3057\u3001React Foundation \u306e\u8a2d\u7acb\u3092\u767a\u8868\u3057\u305f\u3002<br \/>\nReact \u306e\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u30fb\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e\u6210\u9577\u3092\u53d7\u3051\u3066\u3001Meta \u306b\u4f9d\u5b58\u3057\u306a\u3044\u904b\u55b6\u4f53\u5236\u3078\u306e\u79fb\u884c\u304c\u671b\u307e\u308c\u3066\u3044\u305f\u3053\u3068\u3092\u53d7\u3051\u3001Meta \u306e\u7ba1\u7406\u4e0b\u304b\u3089\u5207\u308a\u96e2\u3059\u5f62\u3067 React Foundation \u3092\u8a2d\u7acb\u3059\u308b\u3053\u3068\u306b\u306a\u3063\u305f\u3002<\/p>\n<p class=\"jdmOYL\">\u4e00\u65b9\u3067\u3001\u30c6\u30af\u30cb\u30ab\u30eb\u30ac\u30d0\u30ca\u30f3\u30b9\u306b\u3064\u3044\u3066\u306f\u3001React \u306b\u5b9f\u969b\u306b\u95a2\u4e0e\u3059\u308b\u30b3\u30f3\u30c8\u30ea\u30d3\u30e5\u30fc\u30bf\u304c\u4e3b\u4f53\u3068\u306a\u3063\u3066\u6c7a\u5b9a\u3059\u3079\u304d\u3068\u8003\u3048\u3066\u304a\u308a\u3001 React Foundation \u3068\u306f\u5225\u306e\u72ec\u7acb\u3057\u305f\u6280\u8853\u7684\u30ac\u30d0\u30ca\u30f3\u30b9\u69cb\u9020\u3092\u8a2d\u8a08\u3059\u308b\u3053\u3068\u3092\u76ee\u6307\u3057\u3066\u3044\u308b\u3002<br \/>\n\u3053\u308c\u306f\u3001React Foundation \u306b\u53c2\u52a0\u3057\u3066\u3044\u308b\u7279\u5b9a\u306e\u4f01\u696d\u304c React \u306e\u6280\u8853\u7684\u65b9\u5411\u6027\u306b\u904e\u5ea6\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u3092\u9632\u3050\u305f\u3081\u3067\u3042\u308b\u3002<\/p>\n<p class=\"jdmOYL\">\u65e5\u672c\u3067\u306f\u3053\u306e\u767a\u8868\u3092\u53d7\u3051\u3066\u3001React \u304c Meta \u306e\u624b\u304b\u3089\u96e2\u308c\u3066\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30e2\u30fc\u30c9\u306b\u306a\u308b\u306e\u3067\u306f\u307f\u305f\u3044\u306a\u610f\u898b\u304c\u6563\u898b\u3055\u308c\u305f\u304c\u3001\u8aa4\u89e3\u3067\u3042\u308b\u3002<br \/>\nReact Foundation \u306e\u8a2d\u7acb\u306f\u3001React \u306e\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u306e\u6210\u9577\u3068\u6301\u7d9a\u53ef\u80fd\u6027\u3092\u652f\u63f4\u3059\u308b\u305f\u3081\u306e\u3082\u306e\u3067\u3042\u308a\u3001React \u81ea\u4f53\u306e\u958b\u767a\u304c\u6b62\u307e\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u3002<br \/>\n\u3080\u3057\u308d\u3001React Foundation \u306e\u8a2d\u7acb\u306b\u3088\u308a\u3001React \u306e\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u306f\u3088\u308a\u5065\u5168\u3067\u6301\u7d9a\u53ef\u80fd\u306a\u3082\u306e\u306b\u306a\u308b\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n<\/div>\n<div id=\"\">\n<h3 class=\"kiZNFL hGHvhs ljIhoq facgvO hBirAB dXdGnp jrpcxw fzBLuJ cbWDxH jkcQii jTWvec markdown_heading\" id=\"profiling-with-react-performance-tracks\" title=\"profiling-with-react-performance-tracks\"><a target=\"_blank\" aria-hidden=\"true\" href=\"#profiling-with-react-performance-tracks\" tabindex=\"-1\">Profiling with React Performance tracks<\/a><\/h3>\n<p class=\"jdmOYL\">\u3053\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3067\u306f\u3001React core team \u306e Ruslan Lesiutin \u6c0f\u304c\u767b\u58c7\u3057\u3001React Performance tracks \u3092\u7d39\u4ecb\u3057\u305f\u3002<br \/>\n\u5185\u5bb9\u3068\u3057\u3066\u306f\u3001\u30e9\u30a4\u30d6\u30c7\u30e2\u3092\u4ea4\u3048\u306a\u304c\u3089\u3001 React Performance tracks \u306e\u4f7f\u3044\u65b9\u3084\u305d\u306e\u5229\u70b9\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u3066\u3044\u305f\u3002<br \/>\n\u7279\u306b\u81ea\u5206\u304c\u8208\u5473\u6df1\u304b\u3063\u305f\u306e\u306f\u3001\u4eca\u5e74\u306e\u5f8c\u534a\u306b\u30ea\u30ea\u30fc\u30b9\u4e88\u5b9a\u306e Suspense boundary \u3092\u30c7\u30d0\u30c3\u30b0\u3059\u308b\u6a5f\u80fd\u306b\u3064\u3044\u3066\u306e\u7d39\u4ecb\u3060\u3063\u305f\u3002<br \/>\n\u3053\u306e\u6a5f\u80fd\u306f\u3001\u7279\u5b9a\u306e Suspense \u304c\u505c\u6b62\u3057\u305f\u7406\u7531\u3092\u78ba\u8a8d\u3067\u304d\u308b\u3082\u306e\u3067\u3001 Suspense \u306e\u4e2d\u3067\u767a\u751f\u3057\u305f\u30a8\u30e9\u30fc\u3084\u3001\u30c7\u30fc\u30bf\u306e\u30d5\u30a7\u30c3\u30c1\u304c\u5b8c\u4e86\u3057\u306a\u304b\u3063\u305f\u5834\u5408\u306a\u3069\u306b\u5f79\u7acb\u3064\u3002<br \/>\n\u307e\u305f\u3001Suspense boundary \u305d\u306e\u3082\u306e\u3092\u53ef\u8996\u5316\u3059\u308b\u6a5f\u80fd\u3082\u8ffd\u52a0\u3055\u308c\u308b\u4e88\u5b9a\u3067\u3001\u9069\u5207\u306a Suspense boundary \u306e\u8a2d\u8a08\u306b\u5f79\u7acb\u3064\u3068\u8003\u3048\u3089\u308c\u308b\u3002<\/p>\n<\/div>\n<div id=\"\">\n<h3 class=\"kiZNFL hGHvhs ljIhoq facgvO hBirAB dXdGnp jrpcxw fzBLuJ cbWDxH jkcQii jTWvec markdown_heading\" id=\"async-react\" title=\"async-react\"><a target=\"_blank\" aria-hidden=\"true\" href=\"#async-react\" tabindex=\"-1\">Async React<\/a><\/h3>\n<p class=\"jdmOYL\">\u3053\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3067\u306f\u3001React core team \u306e Ricky Hanlon \u6c0f\u304c\u767b\u58c7\u3057\u3001 React \u306e\u672a\u6765\u306b\u3064\u3044\u3066\u8a9e\u3063\u305f\u3002<br \/>\n\u500b\u4eba\u7684\u306b\u4e00\u756a\u5370\u8c61\u306b\u6b8b\u3063\u305f\u30bb\u30c3\u30b7\u30e7\u30f3\u3067\u3001 React \u306e\u672a\u6765\u306b\u5bfe\u3059\u308b\u5f7c\u306e\u30d3\u30b8\u30e7\u30f3\u304c\u975e\u5e38\u306b\u660e\u78ba\u3067\u3001\u304b\u3064\u5b9f\u73fe\u53ef\u80fd\u306a\u3082\u306e\u3067\u3042\u308b\u3068\u611f\u3058\u305f\u3002<br \/>\nReact core team \u306f 10 \u5e74\u4ee5\u4e0a\u306b\u308f\u305f\u308a\u3001&#8221;reconciler with yielding event loop&#8221; \u306b\u53d6\u308a\u7d44\u3093\u3067\u304a\u308a\u3001\u305d\u306e 1 \u3064\u306e\u7b54\u3048\u304c concurrent rendering \u3067\u3042\u308b\u3068\u8a9e\u3063\u305f\u3002<br \/>\n\u3053\u306e\u6982\u5ff5\u306f React 18 \u3067\u5c0e\u5165\u3055\u308c\u305f transition \u3092\u826f\u3044\u611f\u3058\u306b\u6271\u3046\u4ed5\u7d44\u307f\u304c\u305d\u306e\u4e00\u4f8b\u3067\u3042\u308b\u3002<br \/>\n\u3057\u304b\u3057\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u3067\u306f transition \u304c\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6539\u5584\u3059\u308b\u305f\u3081\u306e 1 \u56de\u9650\u308a\u306e\u6a5f\u80fd\u3067\u3042\u308b\u3068\u6349\u3048\u3089\u308c\u3066\u3044\u308b\u304c\u3001\u305d\u3046\u3067\u306f\u306a\u3044\u3002<br \/>\nReact core team \u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5fdc\u7b54\u6027\u3092\u5411\u4e0a\u3059\u308b\u306b\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u884c\u3046\u3059\u3079\u3066\u306e\u64cd\u4f5c\u3092\u975e\u540c\u671f\u306b\u51e6\u7406\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3068\u8003\u3048\u3066\u3044\u308b\u3002<\/p>\n<p class=\"jdmOYL\">\u6709\u540d\u306a <code class=\"cbxutX iMTzzS cKDsxM atQQh kDkpvL fjBtaK eKuzGa\">ui = f(state)<\/code> \u3068\u3044\u3046 React \u306e\u30e1\u30f3\u30bf\u30eb\u30e2\u30c7\u30eb\u306f\u73fe\u4ee3\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u306f\u9069\u3057\u3066\u3044\u306a\u3044\u3068\u5f7c\u306f\u8a9e\u3063\u305f\u3002<br \/>\n\u306a\u305c\u306a\u3089\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u884c\u3046\u3059\u3079\u3066\u306e\u64cd\u4f5c\u3092\u540c\u671f\u7684\u306b\u51e6\u7406\u3059\u308b\u306e\u306f\u4e0d\u53ef\u80fd\u3067\u3042\u308a\u3001\u307e\u305f\u305d\u308c\u304c\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u640d\u306a\u3046\u53ef\u80fd\u6027\u304c\u3042\u308b\u304b\u3089\u3060\u3002<br \/>\n\u3053\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3067\u306f <code class=\"cbxutX iMTzzS cKDsxM atQQh kDkpvL fjBtaK eKuzGa\">await ui = await f(await state)<\/code> \u3068\u3044\u3046\u65b0\u3057\u3044\u30e1\u30f3\u30bf\u30eb\u30e2\u30c7\u30eb\u3092\u63d0\u6848\u3057\u3066\u3044\u308b\u3002<br \/>\n\u3053\u308c\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30a4\u30d9\u30f3\u30c8\u3001\u305d\u308c\u306b\u5fdc\u3058\u305f\u72b6\u614b\u306e\u66f4\u65b0\u3001\u305d\u3057\u3066\u305d\u308c\u306b\u57fa\u3065\u304f UI \u306e\u66f4\u65b0\u304c\u3059\u3079\u3066\u975e\u540c\u671f\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u308b\u3002<\/p>\n<p class=\"jdmOYL\">Async React \u306e\u76ee\u6307\u3059\u5148\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u74b0\u5883\u306b\u30b9\u30b1\u30fc\u30eb\u3057\u3066\u4f53\u9a13\u3092\u60aa\u5316\u3055\u305b\u305a\u306b\u6a5f\u80fd\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u3060\u3002<br \/>\n\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3092\u69d8\u3005\u306a\u72b6\u614b\u3067\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u793a\u3059\u3053\u3068\u3067\u4f53\u9a13\u3092\u60aa\u5316\u3055\u305b\u306a\u304f\u3066\u826f\u304f\u306a\u308a\u3001\u4f4e\u30b9\u30da\u30c3\u30af\u306a\u30c7\u30d0\u30a4\u30b9\u3067\u3082\u5feb\u9069\u306b\u52d5\u4f5c\u3059\u308b\u3088\u3046\u306b\u306a\u308b\u3002<br \/>\n\u3053\u306e\u6838\u5fc3\u306f transition \u306b\u3042\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u64cd\u4f5c\u3092\u512a\u5148\u3057\u3001\u305d\u306e\u4ed6\u306e\u66f4\u65b0\u3092\u9045\u5ef6\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5fdc\u7b54\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3068\u8a9e\u3063\u305f\u3002<\/p>\n<p class=\"jdmOYL\">\u305d\u306e\u305f\u3081\u306b Ricky \u6c0f\u306f\u6b21\u306e\u3088\u3046\u306a\u8003\u3048\u65b9\u304c\u5fc5\u8981\u3060\u3068\u8a9e\u3063\u305f\u3002<\/p>\n<p class=\"jdmOYL\"><img alt=\"Async React\" decoding=\"async\" height=\"1080\" loading=\"lazy\" src=\"\/img\/reactconf_7-nBn0kkK5-1920x1080.webp 1920w \/img\/reactconf_7-nBn0kkK5-1344x756.webp 1344w \/img\/reactconf_7-nBn0kkK5-941x529.webp 941w \/img\/reactconf_7-nBn0kkK5-659x370.webp 659w \/img\/reactconf_7-nBn0kkK5-461x259.webp 461w \/img\/reactconf_7-nBn0kkK5-323x182.webp 323w\" width=\"1920\"\/><\/p>\n<p class=\"jdmOYL\">\u307e\u305f\u3001 Async React \u306f\u4eca\u56de working group \u304c\u65b0\u3057\u304f\u7acb\u3061\u4e0a\u3052\u3089\u308c\u305f\u305f\u3081\u3001\u8208\u5473\u304c\u3042\u308b\u4eba\u306f\u53c2\u52a0\u3057\u3066\u307b\u3057\u3044\u3068\u8a9e\u3063\u305f\u3002<sup class=\"hGHvhs enpBld\" aria-labelledby=\"fn-1\" id=\"fnref-1\"><a target=\"_blank\" class=\"XtMDq XzkjQ epsXcB\" href=\"#fn-1\">1<\/a><\/sup><\/p>\n<\/div>\n<div id=\"\">\n<h3 class=\"kiZNFL hGHvhs ljIhoq facgvO hBirAB dXdGnp jrpcxw fzBLuJ cbWDxH jkcQii jTWvec markdown_heading\" id=\"exploring-react-performance\" title=\"exploring-react-performance\"><a target=\"_blank\" aria-hidden=\"true\" href=\"#exploring-react-performance\" tabindex=\"-1\">Exploring React Performance<\/a><\/h3>\n<p class=\"jdmOYL\">\u3053\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3067\u306f\u518d\u3073 Joe Savona \u6c0f\u304c\u767b\u58c7\u3057\u3001 \u5df7\u3067\u8a71\u984c\u306e React \u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3064\u3044\u3066\u3001\u3069\u308c\u304f\u3089\u3044\u512a\u308c\u3066\u3044\u308b\u304b\u3092\u8ad6\u3058\u305f\u3002<br \/>\nReact \u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3064\u3044\u3066\u6b63\u3057\u304f\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u306f\u3001React \u306e\u5897\u5206\u8a08\u7b97\u306b\u3064\u3044\u3066\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u3063\u305f\u3068\u8a9e\u3063\u305f\u3002<br \/>\n\u305d\u306e\u4e2d\u3067\u898b\u3048\u3066\u304d\u305f\u306e\u306f\u3001\u5897\u5206\u8a08\u7b97\u3092\u7528\u3044\u305f\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a\u306b\u306f\u6b21\u306e 2 \u3064\u306e\u8981\u7d20\u304c\u91cd\u8981\u3067\u3042\u308b\u3068\u3044\u3046\u3053\u3068\u3060\u3063\u305f\u3002<\/p>\n<ul class=\"jftpCC jNOxdF daDJvV kwORxP XluZh fznPoi\">\n<li>\n<p class=\"jdmOYL\">data model<\/p>\n<\/li>\n<li>\n<p class=\"jdmOYL\">update algorithm<\/p>\n<\/li>\n<\/ul>\n<p class=\"jdmOYL\">update algorithm \u306b\u3064\u3044\u3066\u306f\u3001React Compiler \u3084 concurrent rendering \u306a\u3069\u3001 React core team \u304c\u3053\u308c\u307e\u3067\u306b\u53d6\u308a\u7d44\u3093\u3067\u304d\u305f\u3053\u3068\u304c\u5927\u304d\u304f\u8ca2\u732e\u3057\u3066\u3044\u308b\u3002<br \/>\nReact Compiler \u306f\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u3088\u308a\u5c0f\u3055\u3044\u30ed\u30b8\u30c3\u30af\u306b\u5206\u5272\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u5909\u66f4\u304c\u3042\u3063\u305f\u5834\u5408\u306b\u518d\u8a08\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u90e8\u5206\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<br \/>\n\u307e\u305f\u3001\u5909\u66f4\u3055\u308c\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b state \u3092\u7d71\u62ec\u7684\u306b\u7ba1\u7406\u3057\u305f data model \u3092\u3059\u308b\u3053\u3068\u3067\u3001\u5909\u66f4\u304c\u3042\u3063\u305f\u5834\u5408\u306b\u5f71\u97ff\u3092\u53d7\u3051\u308b\u90e8\u5206\u3092\u7279\u5b9a\u3057\u3084\u3059\u304f\u306a\u3063\u3066\u3044\u308b\u3002<br \/>\nJoe \u6c0f\u306f\u5358\u4e00\u306e\u72b6\u614b\u3092 context \u7d4c\u7531\u3067\u7ba1\u7406\u3059\u308b\u3053\u3068\u304c\u3001 React \u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306b\u91cd\u8981\u3067\u3042\u308b\u3068\u8a9e\u3063\u305f\u3002<\/p>\n<p class=\"jdmOYL\">\u8a71\u306f\u5909\u308f\u3063\u3066\u3001\u754c\u9688\u3067\u8a71\u984c\u306a signal base \u306e state management \u306b\u3064\u3044\u3066\u3082\u8a00\u53ca\u304c\u3042\u3063\u305f\u3002<br \/>\nReact core team \u306f React Forest \u3068\u3044\u3046\u540d\u524d\u306e runtime based \u3067 signal based \u306a\u9045\u5ef6\u8a55\u4fa1\u3055\u308c\u308b computation graph \u3092 prototype \u3068\u3057\u3066\u958b\u767a\u3057\u305f\u3002<br \/>\n\u305d\u3057\u3066\u5b9f\u969b\u306b signal base \u306e state management \u306f React \u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u306e\u304b\u3092\u691c\u8a3c\u3057\u305f\u3002<\/p>\n<p class=\"jdmOYL\"><img alt=\"React Forest\" decoding=\"async\" height=\"1080\" loading=\"lazy\" src=\"\/img\/reactconf_8-r1C_3wZ8-1920x1080.webp 1920w \/img\/reactconf_8-r1C_3wZ8-1344x756.webp 1344w \/img\/reactconf_8-r1C_3wZ8-941x529.webp 941w \/img\/reactconf_8-r1C_3wZ8-659x370.webp 659w \/img\/reactconf_8-r1C_3wZ8-461x259.webp 461w \/img\/reactconf_8-r1C_3wZ8-323x182.webp 323w\" width=\"1920\"\/><\/p>\n<p class=\"jdmOYL\">\u3057\u304b\u3057\u3001\u691c\u8a3c\u306e\u7d50\u679c\u3001 signal base \u306e state management \u306f React \u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u3001\u3068\u3044\u3046\u7d50\u8ad6\u306b\u81f3\u3063\u305f\u3002<br \/>\n\u3053\u306e\u691c\u8a3c\u3067\u5927\u4e8b\u306a\u306e\u306f\u524d\u63d0\u3068\u3057\u3066\u3001\u5358\u4e00\u306e\u72b6\u614b\u3092 context \u7d4c\u7531\u3067\u7ba1\u7406\u3059\u308b\u3068\u3044\u3046\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u306b\u304a\u3044\u3066\u691c\u8a3c\u304c\u884c\u308f\u308c\u305f\u3001\u3068\u3044\u3046\u3053\u3068\u3060\u3002<br \/>\n\u3053\u306e\u524d\u63d0\u306b\u304a\u3044\u3066\u3001 signal base \u306e state management \u306f\u30ce\u30fc\u30c9\u3092 2 \u5ea6\u8210\u3081\u308b\u3053\u3068\u306b\u306a\u308a\u3001\u7d50\u679c\u3068\u3057\u3066\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f\u4f4e\u4e0b\u3059\u308b\u3053\u3068\u304c\u5206\u304b\u3063\u305f\u3002<\/p>\n<p class=\"jdmOYL\"><img alt=\"Signal based state management\" decoding=\"async\" height=\"1080\" loading=\"lazy\" src=\"\/img\/reactconf_9-rjBMizi1-1920x1080.webp 1920w \/img\/reactconf_9-rjBMizi1-1344x756.webp 1344w \/img\/reactconf_9-rjBMizi1-941x529.webp 941w \/img\/reactconf_9-rjBMizi1-659x370.webp 659w \/img\/reactconf_9-rjBMizi1-461x259.webp 461w \/img\/reactconf_9-rjBMizi1-323x182.webp 323w\" width=\"1920\"\/><\/p>\n<p class=\"jdmOYL\">Joe \u6c0f\u306f\u3001\u3053\u306e\u7d50\u8ad6\u3084 Meta \u306b\u3059\u3067\u306b\u3042\u308b\u4ed6\u306e\u5897\u5206\u8a08\u7b97\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u7528\u3044\u305f\u30b7\u30b9\u30c6\u30e0(Flow \u3084 Relay)\u3092\u8e0f\u307e\u3048\u3001\u30c9\u30e1\u30a4\u30f3\u56fa\u6709\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u4e00\u822c\u5316\u3055\u308c\u305f\u5897\u5206\u8a08\u7b97\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3088\u308a\u3082\u512a\u308c\u3066\u3044\u308b\u3068\u8a9e\u3063\u305f\u3002<br \/>\n\u305d\u3053\u3067 React core team \u306f\u3001\u5168\u304f\u65b0\u3057\u3044\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u30a2\u30a4\u30c7\u30a2\u3068\u3057\u3066 React Fir \u3092\u7d39\u4ecb\u3057\u305f\u3002<\/p>\n<p class=\"jdmOYL\"><img alt=\"React Fir\" decoding=\"async\" height=\"1080\" loading=\"lazy\" src=\"\/img\/reactconf_10-WnEGpdYc-1920x1080.webp 1920w \/img\/reactconf_10-WnEGpdYc-1344x756.webp 1344w \/img\/reactconf_10-WnEGpdYc-941x529.webp 941w \/img\/reactconf_10-WnEGpdYc-659x370.webp 659w \/img\/reactconf_10-WnEGpdYc-461x259.webp 461w \/img\/reactconf_10-WnEGpdYc-323x182.webp 323w\" width=\"1920\"\/><\/p>\n<p class=\"jdmOYL\">React Fir \u306f\u3001 React \u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u5b8c\u5168\u306b\u518d\u8a2d\u8a08\u3059\u308b\u3053\u3068\u3092\u76ee\u6307\u3057\u3066\u304a\u308a\u3001\u73fe\u5728\u306f\u307e\u3060\u521d\u671f\u6bb5\u968e\u306b\u3042\u308a\u3053\u308c\u4ee5\u4e0a\u306e\u8a73\u7d30\u306f\u660e\u3089\u304b\u306b\u3055\u308c\u3066\u3044\u306a\u3044\u3002<br \/>\n\u79c1\u3082\u5b9f\u969b\u30a2\u30d5\u30bf\u30fc\u30d1\u30fc\u30c6\u30a3\u30fc\u3067 Joe \u6c0f\u306b\u8cea\u554f\u3057\u305f\u304c\u3001\u307e\u3060\u8a73\u7d30\u306f\u660e\u3089\u304b\u306b\u3067\u304d\u306a\u3044\u3068\u8a9e\u3063\u3066\u3044\u305f\u3002<\/p>\n<p class=\"jdmOYL\">\u8a71\u3092\u623b\u3057\u3066\u3001\u73fe\u72b6\u306e React runtime \u3068 React Compiler \u3092\u7528\u3044\u3066\u3001\u3053\u308c\u4ee5\u4e0a\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u826f\u3044\u304b\u3001\u3068\u3044\u3046\u8a71\u306b\u306a\u3063\u305f\u3002<br \/>\nJoe \u6c0f\u306f\u3001 data mdoel \u306b\u7740\u76ee\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3042\u308b\u3068\u8a9e\u3063\u305f\u3002<br \/>\n\u9375\u3068\u306a\u308b\u306e\u306f\u7d30\u304b\u3044\u3001state \u306e\u5909\u66f4\u306e\u76e3\u8996\u304c\u3067\u304d\u308b store \u3092\u7528\u3044\u308b\u3053\u3068\u3060\u3002<br \/>\n\u6b21\u306e\u3088\u3046\u306a store \u3092\u7528\u3044\u308b\u3053\u3068\u3067\u3001\u5909\u66f4\u304c\u3042\u3063\u305f\u5834\u5408\u306b\u5f71\u97ff\u3092\u53d7\u3051\u308b\u90e8\u5206\u3092\u7279\u5b9a\u3057\u3084\u3059\u304f\u306a\u308b\u3002<\/p>\n<div class=\"gyngXe bErrUh QqiLv hhwIzy fSxPrl byaFfl loovcm eoVCwg jbhapY jbcyii kDkpvL fzFRHy fzoNxa coifMe fzoNwz\">\n<pre class=\"shiki vitesse-dark\" style=\"color: #dbd7cacc;\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color:#CB7676\">type<\/span><span style=\"color:#5DA994\"> Store<\/span><span style=\"color:#666666\"><span style=\"color:#5DA994\">T<\/span><span style=\"color:#666666\">&gt;<\/span><span style=\"color:#666666\"> =<\/span><span style=\"color:#666666\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color:#80A665\">\tget<\/span><span style=\"color:#666666\">(<\/span><span style=\"color:#BD976A\">key<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">string<\/span><span style=\"color:#666666\">):<\/span><span style=\"color:#5DA994\"> T<\/span><span style=\"color:#666666\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color:#80A665\">\tsubscribe<\/span><span style=\"color:#666666\">(<\/span><span style=\"color:#BD976A\">key<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">string<\/span><span style=\"color:#666666\">,<\/span><span style=\"color:#80A665\"> cb<\/span><span style=\"color:#666666\">: (<\/span><span style=\"color:#BD976A\">value<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">T<\/span><span style=\"color:#666666\">) =&gt; <\/span><span style=\"color:#5DA994\">void<\/span><span style=\"color:#666666\">):<\/span><span style=\"color:#5DA994\"> Disposable<\/span><span style=\"color:#666666\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color:#80A665\">\tupdate<\/span><span style=\"color:#666666\">(<\/span><span style=\"color:#BD976A\">key<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">string<\/span><span style=\"color:#666666\">,<\/span><span style=\"color:#BD976A\"> value<\/span><span style=\"color:#666666\">: <\/span><span style=\"color:#5DA994\">T<\/span><span style=\"color:#666666\">):<\/span><span style=\"color:#5DA994\"> void<\/span><span style=\"color:#666666\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color:#666666\">};<\/span><\/span><\/span><\/code><\/pre>\n<\/div>\n<p class=\"jdmOYL\"><img alt=\"Store\" decoding=\"async\" height=\"1080\" loading=\"lazy\" src=\"\/img\/reactconf_11-AwRrm4GY-1920x1080.webp 1920w \/img\/reactconf_11-AwRrm4GY-1344x756.webp 1344w \/img\/reactconf_11-AwRrm4GY-941x529.webp 941w \/img\/reactconf_11-AwRrm4GY-659x370.webp 659w \/img\/reactconf_11-AwRrm4GY-461x259.webp 461w \/img\/reactconf_11-AwRrm4GY-323x182.webp 323w\" width=\"1920\"\/><\/p>\n<p class=\"jdmOYL\">Joe \u6c0f\u306f\u3001\u3053\u3046\u3044\u3063\u305f\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u306e\u898b\u76f4\u3057\u3092\u884c\u3046\u3053\u3068\u3067\u3001 React \u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u3055\u3089\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3068\u8a9e\u3063\u305f\u3002<\/p>\n<p class=\"jdmOYL\">\u7d50\u3073\u306b\u3001\u4eca\u306e React \u306b\u3066\u975e\u5e38\u306b\u512a\u308c\u305f\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5f97\u308b\u305f\u3081\u306b\u306f\u3001\u4ee5\u4e0b\u306e 2 \u3064\u304c\u91cd\u8981\u3067\u3042\u308b\u3068\u8a9e\u3063\u305f\u3002<\/p>\n<p class=\"jdmOYL\">\u307e\u305f Future React \u3068\u3057\u3066\u3001 concurrent store for targeted updates \u306b\u3064\u3044\u3066\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u53ef\u80fd\u6027\u3092\u793a\u5506\u3057\u305f\u3002<\/p>\n<p class=\"jdmOYL\"><img alt=\"Future React\" decoding=\"async\" height=\"1080\" loading=\"lazy\" src=\"\/img\/reactconf_12-+Vt5BF38-1920x1080.webp 1920w \/img\/reactconf_12-+Vt5BF38-1344x756.webp 1344w \/img\/reactconf_12-+Vt5BF38-941x529.webp 941w \/img\/reactconf_12-+Vt5BF38-659x370.webp 659w \/img\/reactconf_12-+Vt5BF38-461x259.webp 461w \/img\/reactconf_12-+Vt5BF38-323x182.webp 323w\" width=\"1920\"\/><\/p>\n<\/div>\n<div id=\"\">\n<h3 class=\"kiZNFL hGHvhs ljIhoq facgvO hBirAB dXdGnp jrpcxw fzBLuJ cbWDxH jkcQii jTWvec markdown_heading\" id=\"react-team-qa\" title=\"react-team-qa\"><a target=\"_blank\" aria-hidden=\"true\" href=\"#react-team-qa\" tabindex=\"-1\">React team Q&amp;A<\/a><\/h3>\n<p class=\"jdmOYL\">\u4e00\u65e5\u76ee\u306e\u6700\u5f8c\u306f React core team \u306e\u30e1\u30f3\u30d0\u30fc\u304c\u767b\u58c7\u3057\u3001\u53c2\u52a0\u8005\u304b\u3089\u306e\u8cea\u554f\u306b\u7b54\u3048\u308b Q&amp;A \u30bb\u30c3\u30b7\u30e7\u30f3\u3060\u3063\u305f\u3002<br \/>\n\u500b\u4eba\u7684\u306b\u5370\u8c61\u306b\u6b8b\u3063\u305f\u8cea\u554f\u3092\u3044\u304f\u3064\u304b\u7d39\u4ecb\u3059\u308b\u3002<\/p>\n<ul class=\"jftpCC jNOxdF daDJvV kwORxP XluZh fznPoi\">\n<li>\n<p class=\"jdmOYL\">React Compiler \u3092\u5c0e\u5165\u3057\u3066\u3044\u304f\u4e0a\u3067\u624b\u52d5\u306e memo \u5316\u3092\u6d88\u3059\u5fc5\u8981\u306f\u3042\u308b\u306e\u304b\uff1f\u307e\u305f\u3001 <code class=\"cbxutX iMTzzS cKDsxM atQQh kDkpvL fjBtaK eKuzGa\">useMemo<\/code> \u3084 <code class=\"cbxutX iMTzzS cKDsxM atQQh kDkpvL fjBtaK eKuzGa\">useCallback<\/code> \u306f\u5c06\u6765\u7684\u306b\u5ec3\u6b62\u3055\u308c\u308b\u306e\u304b\uff1f<\/p>\n<ul class=\"jftpCC jNOxdF daDJvV kwORxP XluZh fznPoi\">\n<li>\n<p class=\"jdmOYL\">\u5168\u304f\u305d\u306e\u5fc5\u8981\u306f\u306a\u3044\u3057\u3001\u5c06\u6765\u7684\u306b\u5ec3\u6b62\u3055\u308c\u308b\u4e88\u5b9a\u3082\u4eca\u306e\u3068\u3053\u308d\u306a\u3044<\/p>\n<\/li>\n<li>\n<p class=\"jdmOYL\">React Compiler \u306f\u624b\u52d5\u306e memoization \u3092\u81ea\u52d5\u5316\u3059\u308b\u3053\u3068\u3092\u76ee\u6307\u3057\u3066\u3044\u308b\u304c\u3001\u3059\u3079\u3066\u306e\u30b1\u30fc\u30b9\u3092\u30ab\u30d0\u30fc\u3067\u304d\u308b\u308f\u3051\u3067\u306f\u306a\u3044<\/p>\n<\/li>\n<li>\n<p class=\"jdmOYL\">\u307e\u305f\u3001\u30e1\u30e2\u5316\u3092\u884c\u3046\u3053\u308c\u3089\u306e API \u306f\u3001React Compiler \u306e\u30e1\u30e2\u5316\u306e\u305f\u3081\u306e\u63a8\u8ad6\u306e\u30d2\u30e5\u30fc\u30ea\u30b9\u30c6\u30a3\u30c3\u30af\u306e\u4e00\u90e8\u306b\u306a\u3063\u3066\u3044\u308b<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p class=\"jdmOYL\">React Compiler \u3092\u672c\u756a\u5c0e\u5165\u3067\u304d\u306a\u3044\u610f\u898b\u306e\u4e2d\u3067\u6c17\u3065\u3044\u305f\u3053\u3068\u306f\uff1f<\/p>\n<ul class=\"jftpCC jNOxdF daDJvV kwORxP XluZh fznPoi\">\n<li>\n<p class=\"jdmOYL\">\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e Rust based \u306a\u57fa\u76e4\u306b\u79fb\u884c\u3057\u3066\u3044\u308b\u304c\u3001React Compiler \u306f\u305d\u306e\u6d41\u308c\u306b\u73fe\u72b6\u306f\u4e57\u308c\u3066\u3044\u306a\u3044<\/p>\n<\/li>\n<li>\n<p class=\"jdmOYL\">\u9375\u3068\u306a\u308b\u306e\u306f Static Hermes \u306e AOT \u30b3\u30f3\u30d1\u30a4\u30eb<\/p>\n<ul class=\"jftpCC jNOxdF daDJvV kwORxP XluZh fznPoi\">\n<li>\n<p class=\"jdmOYL\">\u307e\u3060\u5b9f\u9a13\u6bb5\u968e\u3060\u304c\u3001AOT \u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305f Native Code \u3092 Rust \u88fd\u306e\u57fa\u76e4\u3067\u52d5\u304b\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u305f\u3044<\/p>\n<\/li>\n<li>\n<p class=\"jdmOYL\">\u3053\u308c\u304c\u4e0a\u624b\u304f\u3044\u304b\u306a\u304b\u3063\u305f\u5834\u5408\u306f\u3001React Compiler \u81ea\u4f53\u3092\u3088\u308a\u30dd\u30fc\u30bf\u30d3\u30ea\u30c6\u30a3\u306e\u9ad8\u3044\u3082\u306e\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p class=\"jdmOYL\">React Foundation \u306b\u3088\u3063\u3066 React \u3068 Meta \u306e\u95a2\u4fc2\u306f\u5909\u308f\u308b\uff1f<\/p>\n<ul class=\"jftpCC jNOxdF daDJvV kwORxP XluZh fznPoi\">\n<li>\n<p class=\"jdmOYL\">\u5909\u308f\u3089\u305a\u6295\u8cc7\u306f\u7d9a\u304f<\/p>\n<\/li>\n<li>\n<p class=\"jdmOYL\">React Foundation \u767a\u8db3\u524d\u304b\u3089 React \u306b\u5bfe\u3057\u3066\u4f01\u696d\u306f\u53e3\u3092\u51fa\u3057\u3066\u3044\u305f<\/p>\n<\/li>\n<li>\n<p class=\"jdmOYL\">React Foundation \u306f\u305d\u306e\u53e3\u3092\u51fa\u305b\u308b\u7a93\u53e3\u3092\u5e83\u3052\u305f\u3082\u306e\u3067\u3057\u304b\u306a\u3044<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>\n\n<br \/><a href=\"https:\/\/blog.re-taro.dev\/p\/01K72ECG97DYRTNSG7CB6KB6J9\">\u5143\u306e\u8a18\u4e8b\u3092\u78ba\u8a8d\u3059\u308b <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Introduction React Conf 2025 \u306e\u306f\u3058\u307e\u308a\u306f\u3001 Seth Webster \u6c0f\u306e\u6328\u62f6\u304b\u3089\u59cb\u307e\u3063\u305f\u3002 \u77ed\u3044\u6328\u62f6\u3060\u3063\u305f\u304c\u3001\u305d\u306e\u4e2d\u3067\u5f7c\u306f React \u306e\u7d20\u6674\u3089\u3057\u3055\u306f\u305f\u3060\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u306f\u306a\u304f\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e [&hellip;]","protected":false},"author":1,"featured_media":9292,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-9291","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hatena-blog"],"acf":[],"yoast_head":"<!-- This site is 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