{"id":39572,"date":"2024-01-03T10:17:24","date_gmt":"2024-01-03T10:17:24","guid":{"rendered":"https:\/\/www.carmatec.com\/?p=39572"},"modified":"2024-01-10T06:31:12","modified_gmt":"2024-01-10T06:31:12","slug":"%e3%82%a2%e3%83%97%e3%83%aa%e3%82%92%e9%ab%98%e9%80%9f%e5%8c%96%e3%81%99%e3%82%8breact%e3%83%91%e3%83%95%e3%82%a9%e3%83%bc%e3%83%9e%e3%83%b3%e3%82%b9%e6%9c%80%e9%81%a9%e5%8c%96%e3%81%ae%e3%83%92","status":"publish","type":"post","link":"https:\/\/www.carmatec.com\/ja\/blog\/react-performance-optimization-tips-for-speeding-up-your-app\/","title":{"rendered":"React\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316\uff1a\u30a2\u30d7\u30ea\u3092\u9ad8\u901f\u5316\u3059\u308b\u30d2\u30f3\u30c8"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"39572\" class=\"elementor elementor-39572\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-0fbda84 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0fbda84\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a10d743\" data-id=\"a10d743\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4b43258 elementor-widget elementor-widget-text-editor\" data-id=\"4b43258\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">\u30da\u30fc\u30b9\u306e\u901f\u3044\u30a6\u30a7\u30d6\u958b\u767a\u306e\u4e16\u754c\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u304c\u6700\u3082\u91cd\u8981\u3067\u3059\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u8907\u96d1\u5316\u3059\u308b\u306b\u3064\u308c\u3001\u6700\u9069\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u306a\u691c\u8a0e\u4e8b\u9805\u306b\u306a\u308a\u307e\u3059\u3002\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b <a href=\"https:\/\/www.carmatec.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/%e6%9c%80%e9%ab%98%e3%81%ae-20-%e3%81%ae-javascript-%e3%83%a9%e3%82%a4%e3%83%96%e3%83%a9%e3%83%aa%e3%81%a8%e3%83%95%e3%83%ac%e3%83%bc%e3%83%a0%e3%83%af%e3%83%bc%e3%82%af\/\">JavaScript\u30e9\u30a4\u30d6\u30e9\u30ea<\/a> \u306f\u3001\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u3067\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306a\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306e\u5805\u7262\u306a\u57fa\u76e4\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u898f\u6a21\u304c\u5927\u304d\u304f\u306a\u308b\u306b\u3064\u308c\u3066\u3001\u958b\u767a\u8005\u306f\u3057\u3070\u3057\u3070\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u554f\u984c\u306b\u906d\u9047\u3057\u307e\u3059\u3002\u3053\u306e\u30d6\u30ed\u30b0\u3067\u306f <\/span><b>React\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u6226\u7565\u3068\u30d2\u30f3\u30c8<\/b><span style=\"font-weight: 400;\">\u30a2\u30d7\u30ea\u304c\u30b9\u30e0\u30fc\u30ba\u304b\u3064\u52b9\u7387\u7684\u306b\u52d5\u4f5c\u3059\u308b\u3088\u3046\u30b5\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><\/p>\n<h2><b>React\u306f\u306a\u305c\u901f\u3044\u306e\u304b\uff1f<\/b><\/h2>\n<p><\/p>\n<p><span style=\"font-weight: 400;\">React\u306e\u30b9\u30d4\u30fc\u30c9\u3068\u52b9\u7387\u6027\u306f\u3001\u305d\u306e\u8a2d\u8a08\u3068\u958b\u767a\u54f2\u5b66\u306b\u7d44\u307f\u8fbc\u307e\u308c\u305f\u3044\u304f\u3064\u304b\u306e\u4e3b\u8981\u306a\u6a5f\u80fd\u3068\u6700\u9069\u5316\u6280\u8853\u306b\u7531\u6765\u3059\u308b\u3002\u4ee5\u4e0b\u306b\u3001React\u306e\u30b9\u30d4\u30fc\u30c9\u306b\u8ca2\u732e\u3059\u308b\u3044\u304f\u3064\u304b\u306e\u8981\u56e0\u3092\u7d39\u4ecb\u3059\u308b\uff1a<\/span><\/p>\n<p><b><\/b><\/p>\n<ul>\n<li aria-level=\"1\"><b>\u30d0\u30fc\u30c1\u30e3\u30ebDOM\uff1a<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">React\u306f\u3001\u66f4\u65b0\u30d7\u30ed\u30bb\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306b\u4eee\u60f3DOM\uff08Document Object Model\uff09\u3092\u5229\u7528\u3059\u308b\u3002\u30d6\u30e9\u30a6\u30b6\u306eDOM\u3092\u76f4\u63a5\u64cd\u4f5c\u3059\u308b\u4ee3\u308f\u308a\u306b\u3001React\u306f\u307e\u305aDOM\u306e\u4eee\u60f3\u8868\u73fe\u306b\u5909\u66f4\u3092\u52a0\u3048\u308b\u3002\u305d\u306e\u5f8c\u3001\u5b9f\u969b\u306eDOM\u3092\u66f4\u65b0\u3059\u308b\u6700\u3082\u52b9\u7387\u7684\u306a\u65b9\u6cd5\u3092\u8a08\u7b97\u3057\u3001\u5fc5\u8981\u306a\u5909\u66f4\u306e\u307f\u3092\u9069\u7528\u3059\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30d6\u30e9\u30a6\u30b6\u306e\u30ea\u30d5\u30ed\u30fc\u3084\u518d\u63cf\u753b\u304c\u6700\u5c0f\u9650\u306b\u6291\u3048\u3089\u308c\u3001\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u9ad8\u901f\u5316\u3055\u308c\u308b\u3002<\/span><\/p>\n<p><b><\/b><\/p>\n<ul>\n<li aria-level=\"1\"><b>\u548c\u89e3\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\uff1a<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">React\u306f\u3001\u4eee\u60f3DOM\u3068\u5b9f\u969b\u306eDOM\u3092\u540c\u671f\u3055\u305b\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u6700\u5c0f\u9650\u306e\u66f4\u65b0\u56de\u6570\u3092\u6c7a\u5b9a\u3059\u308b\u305f\u3081\u306b\u3001\u975e\u5e38\u306b\u52b9\u7387\u7684\u306a\u548c\u89e3\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u63a1\u7528\u3057\u3066\u3044\u308b\u3002\u3053\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u30c4\u30ea\u30fc\u306e\u5909\u66f4\u3092\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30c8\u306b\u8b58\u5225\u3057\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u90e8\u5206\u306e\u307f\u3092\u66f4\u65b0\u3059\u308b\u3002\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u3088\u308a\u3001\u66f4\u65b0\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306b\u4f34\u3046\u8a08\u7b97\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u5927\u5e45\u306b\u524a\u6e1b\u3055\u308c\u308b\u3002<\/span><\/p>\n<p><b><\/b><\/p>\n<ul>\n<li aria-level=\"1\"><b>\u62e1\u6563\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\uff1a<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u30ea\u30b3\u30f3\u30b7\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\uff08\u8abf\u6574\uff09\u30d7\u30ed\u30bb\u30b9\u306e\u4e00\u90e8\u3067\u3042\u308bReact\u306e\u5dee\u5206\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u3001\u4eee\u60f3DOM\u306e\u4ee5\u524d\u306e\u72b6\u614b\u3068\u73fe\u5728\u306e\u72b6\u614b\u306e\u9593\u306e\u5909\u66f4\u3092\u52b9\u7387\u7684\u306b\u8b58\u5225\u3059\u308b\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u308b\u3002DOM\u3092\u66f4\u65b0\u3059\u308b\u6700\u3082\u6700\u9069\u306a\u65b9\u6cd5\u3092\u6c7a\u5b9a\u3059\u308b\u305f\u3081\u306b\u30d2\u30e5\u30fc\u30ea\u30b9\u30c6\u30a3\u30c3\u30af\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u63a1\u7528\u3059\u308b\u3053\u3068\u3067\u3001React\u306f\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306b\u5fc5\u8981\u306a\u6642\u9593\u3068\u30ea\u30bd\u30fc\u30b9\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u307e\u3059\u3002<\/span><\/p>\n<p><b><\/b><\/p>\n<ul>\n<li aria-level=\"1\"><b>\u4eee\u60f3DOM\u306e\u4e00\u62ec\u66f4\u65b0\uff1a<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">React\u306f\u3001\u4eee\u60f3DOM\u3078\u306e\u8907\u6570\u306e\u66f4\u65b0\u3092\u5b9f\u969b\u306eDOM\u3078\u306e\u5358\u4e00\u306e\u66f4\u65b0\u306b\u30d0\u30c3\u30c1\u51e6\u7406\u3059\u308b\u3053\u3068\u3067\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u3002\u3053\u306e\u30d0\u30c3\u30c1\u51e6\u7406\u3068\u975e\u540c\u671f\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u4f7f\u7528\u306b\u3088\u308a\u3001React\u306f\u66f4\u65b0\u306e\u512a\u5148\u9806\u4f4d\u3092\u4ed8\u3051\u3001\u4e2d\u65ad\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3001\u52b9\u7387\u3092\u6700\u5927\u5316\u3059\u308b\u9806\u5e8f\u3067\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3092\u7d44\u3080\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/span><\/p>\n<p><b><\/b><\/p>\n<ul>\n<li aria-level=\"1\"><b>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u624b\u6cd5\uff1a<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">shouldComponentUpdate\u3084componentDidUpdate\u3068\u3044\u3063\u305fReact\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u66f4\u65b0\u30bf\u30a4\u30df\u30f3\u30b0\u3092\u304d\u3081\u7d30\u304b\u304f\u5236\u5fa1\u3067\u304d\u308b\u3002\u3053\u308c\u3089\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u6226\u7565\u7684\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u4e0d\u8981\u306a\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u56de\u907f\u3057\u3001\u3088\u308a\u5408\u7406\u7684\u3067\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u9ad8\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><b><\/b><\/p>\n<ul>\n<li aria-level=\"1\"><b>\u30e1\u30e2\u5316\uff1a<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u30e1\u30e2\u5316\u306f\u3001React\u304c\u9ad8\u4fa1\u306a\u95a2\u6570\u547c\u3073\u51fa\u3057\u306e\u7d50\u679c\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u305f\u3081\u306b\u63a1\u7528\u3059\u308b\u30c6\u30af\u30cb\u30c3\u30af\u3067\u3059\u3002React.memo()\u9ad8\u6b21\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u3001\u6a5f\u80fd\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u30e1\u30e2\u5316\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u305d\u308c\u306b\u3088\u3063\u3066\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306eprops\u304c\u5909\u66f4\u3055\u308c\u306a\u3044\u307e\u307e\u3067\u3042\u308b\u5834\u5408\u306b\u5197\u9577\u306a\u518d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u56de\u907f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><b><\/b><\/p>\n<ul>\n<li aria-level=\"1\"><b>\u30d5\u30a1\u30a4\u30d0\u30fc\u30fb\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\uff1a<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">React Fiber\u306f\u3001React\u306e\u30b3\u30a2\u30fb\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u5b8c\u5168\u306b\u66f8\u304d\u76f4\u3057\u305f\u3082\u306e\u3067\u3001\u3088\u308a\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30bf\u30eb\u306b\u3001\u3088\u308a\u9069\u5fdc\u7684\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u3002Fiber\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u3088\u308a\u3001React\u306f\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u4e00\u6642\u505c\u6b62\u3068\u518d\u958b\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30bf\u30b9\u30af\u306e\u512a\u5148\u9806\u4f4d\u4ed8\u3051\u3084\u5272\u308a\u8fbc\u307f\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5168\u4f53\u306e\u5fdc\u7b54\u6027\u304c\u5411\u4e0a\u3059\u308b\u3002<\/span><\/p>\n<p><b><\/b><\/p>\n<ul>\n<li aria-level=\"1\"><b>\u30b3\u30f3\u30ab\u30ec\u30f3\u30c8\u30fb\u30e2\u30fc\u30c9\uff1a<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">React\u306e\u30b3\u30f3\u30ab\u30ec\u30f3\u30c8\u30fb\u30e2\u30fc\u30c9\u306f\u3001React\u304c\u8907\u6570\u306e\u30bf\u30b9\u30af\u3092\u540c\u6642\u306b\u51e6\u7406\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u5b9f\u9a13\u7684\u306a\u6a5f\u80fd\u3067\u3042\u308b\u3002\u3053\u306e\u6a5f\u80fd\u306b\u3088\u308a\u3001\u8a08\u7b97\u96c6\u7d04\u7684\u306a\u51e6\u7406\u306b\u76f4\u9762\u3057\u305f\u5834\u5408\u3067\u3082\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5fdc\u7b54\u6027\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u3088\u308a\u30b9\u30e0\u30fc\u30ba\u306a\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/span><\/p>\n<p><\/p>\n<h2><b>React\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u51e6\u7406\u3092\u7406\u89e3\u3059\u308b<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af\u306b\u98db\u3073\u8fbc\u3080\u524d\u306b\u3001React\u304c\u3069\u306e\u3088\u3046\u306b\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u51e6\u7406\u3059\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u4e0d\u53ef\u6b20\u3060\u3002React\u306f\u3001\u4eee\u60f3DOM\u3092\u4f7f\u3063\u3066\u5b9f\u969b\u306eDOM\u3092\u52b9\u7387\u7684\u306b\u66f4\u65b0\u3059\u308b\u3002\u30b9\u30c6\u30fc\u30c8\u3084\u30d7\u30ed\u30c3\u30d7\u304c\u5909\u66f4\u3055\u308c\u308b\u3068\u3001React\u306f\u4eee\u60f3DOM\u3068\u5b9f\u969b\u306eDOM\u3092\u7167\u5408\u3057\u3001\u5fc5\u8981\u306a\u90e8\u5206\u306e\u307f\u3092\u66f4\u65b0\u3059\u308b\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u52b9\u7387\u7684\u3060\u304c\u3001\u7279\u5b9a\u306e\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u3088\u3063\u3066\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u3055\u3089\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/span><\/p>\n<p><\/p>\n<ol>\n<li><b> \u4e0d\u8981\u306a\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u7279\u5b9a\u3068\u524a\u9664<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">React\u306f\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u72b6\u614b\u3084props\u304c\u5909\u66f4\u3055\u308c\u308b\u3068\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3059\u308b\u3002\u3057\u304b\u3057\u3001\u3059\u3079\u3066\u306e\u5909\u66f4\u304c\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u518d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u5fc5\u8981\u3068\u3059\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002shouldComponentUpdate\u3092\u5b9f\u88c5\u3059\u308b\u304b\u3001React\u306ePureComponent\u3092\u4f7f\u7528\u3057\u3066\u3001\u4e0d\u8981\u306a\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u9632\u6b62\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u66f4\u65b0\u3059\u308b\u3001\u307e\u305f\u306f\u66f4\u65b0\u3057\u306a\u3044\u6761\u4ef6\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u6700\u9069\u5316\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><\/p>\n<ol start=\"2\">\n<li><b> React.memo()\u306b\u3088\u308b\u30e1\u30e2\u5316<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">React\u306f\u3001\u6a5f\u80fd\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u30e1\u30e2\u5316\u3059\u308b\u305f\u3081\u306e\u9ad8\u6b21\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8React.memo()\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30e1\u30e2\u5316\u306f\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u7d50\u679c\u3092props\u306b\u57fa\u3065\u3044\u3066\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u3053\u3068\u3067\u3001\u4e0d\u8981\u306a\u518d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u9632\u3050\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/span><\/p>\n<p><\/p>\n<ol start=\"3\">\n<li><b> \u30ad\u30fc\u306b\u3088\u308b\u30ea\u30b9\u30c8\u30fb\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u6700\u9069\u5316<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">\u30ea\u30b9\u30c8\u3092\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3059\u308b\u969b\u3001\u5404\u30a2\u30a4\u30c6\u30e0\u304c\u4e00\u610f\u306e\u30ad\u30fc\u3092\u6301\u3063\u3066\u3044\u308b\u3068\u3001React\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3059\u308b\u3002\u30ad\u30fc\u306f\u3001React\u304c\u3069\u306e\u9805\u76ee\u304c\u5909\u66f4\u3055\u308c\u305f\u304b\u3001\u8ffd\u52a0\u3055\u308c\u305f\u304b\u3001\u524a\u9664\u3055\u308c\u305f\u304b\u3092\u8b58\u5225\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u914d\u5217\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u30ad\u30fc\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\u306e\u306f\u907f\u3051\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<p><\/p>\n<ol start=\"4\">\n<li><b> \u30ec\u30a4\u30b8\u30fc\u30fb\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u3068\u30b3\u30fc\u30c9\u5206\u5272<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u5c0f\u3055\u306a\u584a\u306b\u5206\u5272\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002React\u306e\u9045\u5ef6\u30ed\u30fc\u30c9\u3068\u30b3\u30fc\u30c9\u5206\u5272\u6a5f\u80fd\u306b\u3088\u308a\u3001\u5fc5\u8981\u306a\u3068\u304d\u3060\u3051\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u30ed\u30fc\u30c9\u3057\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u521d\u671f\u30ed\u30fc\u30c9\u6642\u9593\u3092\u77ed\u7e2e\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><\/p>\n<ol start=\"5\">\n<li><b> React Profiler\u3092\u4f7f\u7528\u3059\u308b<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">React \u306b\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3092\u7279\u5b9a\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u30d7\u30ed\u30d5\u30a1\u30a4\u30e9\u304c\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3057\u305f\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u4e00\u90e8\u3092\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u30e9\u30c3\u30d7\u3057\u3001Chrome DevTools Performance\u30bf\u30d6\u306e\u3088\u3046\u306a\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u7d50\u679c\u3092\u5206\u6790\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><\/p>\n<ol start=\"6\">\n<li><b> Web Workers\u3067\u91cd\u3044\u51e6\u7406\u3092\u6700\u9069\u5316\u3059\u308b<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">\u8a08\u7b97\u91cf\u306e\u591a\u3044\u51e6\u7406\u3092\u30a6\u30a7\u30d6 \u30ef\u30fc\u30ab\u30fc\u306b\u79fb\u3057\u3001\u30e1\u30a4\u30f3 \u30b9\u30ec\u30c3\u30c9\u306e\u30d6\u30ed\u30c3\u30af\u3092\u56de\u907f\u3057\u307e\u3059\u3002\u30a6\u30a7\u30d6 \u30ef\u30fc\u30ab\u30fc\u306f\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u3067\u5b9f\u884c\u3055\u308c\u308b\u305f\u3081\u3001\u30e1\u30a4\u30f3 \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3 \u30b9\u30ec\u30c3\u30c9\u306f\u5fdc\u7b54\u3057\u7d9a\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><\/p>\n<ol start=\"7\">\n<li><b> \u30ea\u30a2\u30af\u30c8\u3068\u4f9d\u5b58\u95a2\u4fc2\u306e\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">React\u3068\u305d\u306e\u4f9d\u5b58\u95a2\u4fc2\u306e\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u65b0\u3057\u3044\u30ea\u30ea\u30fc\u30b9\u306b\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6539\u5584\u3084\u6700\u9069\u5316\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u5b9a\u671f\u7684\u306b\u66f4\u65b0\u3057\u3066\u3001\u3053\u308c\u3089\u306e\u6a5f\u80fd\u5f37\u5316\u306e\u6069\u6075\u3092\u53d7\u3051\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<p><\/p>\n<h2><b>\u7d50\u8ad6<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u4e3b\u5f79\u3068\u3057\u3066 <a href=\"https:\/\/www.carmatec.com\/ja\/%e5%8f%8d%e5%bf%9c%e3%81%99%e3%82%8bjs%e9%96%8b%e7%99%ba\/\">ReactJS\u958b\u767a\u4f1a\u793e<\/a> React\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306f\u3001\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3001\u30c4\u30fc\u30eb\u3001\u305d\u3057\u3066React\u306e\u52d5\u4f5c\u306b\u95a2\u3059\u308b\u6df1\u3044\u7406\u89e3\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u5fc5\u8981\u3068\u3059\u308b\u7d99\u7d9a\u7684\u306a\u30d7\u30ed\u30bb\u30b9\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3053\u306e\u30d6\u30ed\u30b0\u3067\u7d39\u4ecb\u3059\u308b\u30d2\u30f3\u30c8\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u3001React\u306e\u30b9\u30d4\u30fc\u30c9\u3068\u5fdc\u7b54\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 <a href=\"https:\/\/www.carmatec.com\/ja\/%e3%83%aa%e3%82%a2%e3%82%af%e3%82%b7%e3%83%a7%e3%83%b3%e3%83%8d%e3%82%a4%e3%83%86%e3%82%a3%e3%83%96%e3%82%a2%e3%83%97%e3%83%aa%e9%96%8b%e7%99%ba%e4%bc%9a%e7%a4%be\/\">\u30ea\u30a2\u30af\u30c8\u30fb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/a>\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u5b9a\u671f\u7684\u306b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u3068\u30c6\u30b9\u30c8\u3092\u884c\u3063\u3066\u6539\u5584\u70b9\u3092\u7279\u5b9a\u3057\u3001React\u306e\u6700\u65b0\u306e\u9032\u6b69\u306b\u3064\u3044\u3066\u5e38\u306b\u60c5\u5831\u3092\u5f97\u308b\u3053\u3068\u3067\u3001\u6700\u9ad8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u8a73\u3057\u304f\u306f\u3053\u3061\u3089 <a href=\"https:\/\/www.carmatec.com\/ja\/%e3%81%8a%e5%95%8f%e3%81%84%e5%90%88%e3%82%8f%e3%81%9b\/\">\u30ab\u30fc\u30de\u30c6\u30c3\u30af\u3068\u3064\u306a\u304c\u308b<\/a>.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7284b26 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7284b26\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e037000\" data-id=\"e037000\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-83138a2 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"83138a2\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInDown&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>\u3088\u304f\u3042\u308b\u8cea\u554f<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c8769f5 elementor-widget elementor-widget-accordion\" data-id=\"c8769f5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"accordion.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-2101\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-2101\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">\u306a\u305cReact\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u304c\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u3068\u3063\u3066\u91cd\u8981\u306a\u306e\u304b\uff1f<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2101\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-2101\"><p>React\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316\u306f\u3001\u30b9\u30e0\u30fc\u30ba\u3067\u5fdc\u7b54\u6027\u306e\u9ad8\u3044\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u6975\u3081\u3066\u91cd\u8981\u3067\u3059\u3002\u6700\u9069\u5316\u3055\u308c\u305f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u8aad\u307f\u8fbc\u307f\u304c\u901f\u304f\u306a\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u30a4\u30f3\u30bf\u30e9\u30af\u30b7\u30e7\u30f3\u306b\u7d20\u65e9\u304f\u53cd\u5fdc\u3057\u3001\u7279\u306b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u304c\u8907\u96d1\u5316\u3059\u308b\u306b\u3064\u308c\u3066\u5168\u4f53\u7684\u306b\u512a\u308c\u305f\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-2102\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-2102\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">React\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u4e0d\u8981\u306a\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u7279\u5b9a\u3059\u308b\u306b\u306f\uff1f<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2102\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-2102\"><p>shouldComponentUpdate\u306e\u3088\u3046\u306a\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u304b\u3001React\u306ePureComponent\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4e0d\u8981\u306a\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u7279\u5b9a\u3057\u3001\u6392\u9664\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u3067\u306f\u3001\u72b6\u614b\u3084\u30d7\u30ed\u30c3\u30d7\u306e\u5909\u66f4\u306b\u57fa\u3065\u3044\u3066\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u66f4\u65b0\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u3092\u5236\u5fa1\u3057\u3001\u4e0d\u8981\u306a\u518d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-2103\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-2103\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">\u30e1\u30e2\u5316\u3068\u306f\u4f55\u304b\u3001React.memo()\u306f\u6700\u9069\u5316\u306b\u3069\u306e\u3088\u3046\u306b\u5f79\u7acb\u3064\u306e\u304b\uff1f<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2103\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-2103\"><p>\u30e1\u30e2\u5316\u306f\u3001\u9ad8\u4fa1\u306a\u95a2\u6570\u547c\u3073\u51fa\u3057\u306e\u7d50\u679c\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u6280\u8853\u3067\u3042\u308b\u3002React\u3067\u306f\u3001React.memo()\u306f\u95a2\u6570\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u30e1\u30e2\u5316\u3059\u308b\u9ad8\u6b21\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3059\u3002\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u7d50\u679c\u3092props\u306b\u57fa\u3065\u3044\u3066\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u3053\u3068\u3067\u3001\u4e0d\u8981\u306a\u518d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-2104\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-2104\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">\u30ec\u30a4\u30b8\u30fc\u30fb\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u3068\u30b3\u30fc\u30c9\u5206\u5272\u306f\u3001React\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306b\u3069\u306e\u3088\u3046\u306b\u8ca2\u732e\u3059\u308b\u306e\u304b\uff1f<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2104\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-2104\"><p>\u00a0\u30ec\u30a4\u30b8\u30fc\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u3068\u30b3\u30fc\u30c9\u5206\u5272\u306b\u3088\u308a\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u7ba1\u7406\u3057\u3084\u3059\u3044\u5c0f\u3055\u306a\u584a\u306b\u5206\u5272\u3057\u307e\u3059\u3002\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u30aa\u30f3\u30c7\u30de\u30f3\u30c9\u3067\u30ed\u30fc\u30c9\u3055\u308c\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u521d\u671f\u30ed\u30fc\u30c9\u6642\u9593\u3092\u77ed\u7e2e\u3057\u307e\u3059\u3002\u5fc5\u8981\u306a\u3068\u304d\u306b\u5fc5\u8981\u306a\u90e8\u5206\u3060\u3051\u3092\u30ed\u30fc\u30c9\u3059\u308b\u3053\u3068\u3067\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3057\u3001\u5168\u4f53\u7684\u306a\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-2105\" class=\"elementor-tab-title\" data-tab=\"5\" role=\"button\" aria-controls=\"elementor-tab-content-2105\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">React Profiler\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30fb\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306e\u7279\u5b9a\u306b\u3069\u306e\u3088\u3046\u306b\u5f79\u7acb\u3061\u307e\u3059\u304b\uff1f<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2105\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"5\" role=\"region\" aria-labelledby=\"elementor-tab-title-2105\"><p>React Profiler\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3092\u7279\u5b9a\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u7d44\u307f\u8fbc\u307f\u30c4\u30fc\u30eb\u3067\u3059\u3002\u30b3\u30fc\u30c9\u306e\u7279\u5b9a\u306e\u90e8\u5206\u3092  \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u30e9\u30c3\u30d7\u3059\u308b\u3053\u3068\u3067\u3001\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u6642\u9593\u3068\u30a4\u30f3\u30bf\u30e9\u30af\u30b7\u30e7\u30f3\u3092\u5206\u6790\u3067\u304d\u307e\u3059\u3002\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u306e\u7d50\u679c\u306f\u3001Chrome DevTools Performance \u30bf\u30d6\u306e\u3088\u3046\u306a\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u3055\u3089\u306b\u8abf\u3079\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u6700\u9069\u5316\u306e\u305f\u3081\u306e\u9818\u57df\u3092\u7279\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>In the fast-paced world of web development, user experience is paramount. As applications grow in complexity, maintaining optimal performance becomes a critical consideration. React, a widely-used JavaScript library for building user interfaces, provides a robust foundation for creating dynamic and responsive web applications. However, as projects scale, developers often encounter performance challenges. This blog explores [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":39581,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,73],"tags":[],"class_list":["post-39572","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-react"],"_links":{"self":[{"href":"https:\/\/www.carmatec.com\/ja\/wp-json\/wp\/v2\/posts\/39572","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.carmatec.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.carmatec.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.carmatec.com\/ja\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.carmatec.com\/ja\/wp-json\/wp\/v2\/comments?post=39572"}],"version-history":[{"count":0,"href":"https:\/\/www.carmatec.com\/ja\/wp-json\/wp\/v2\/posts\/39572\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.carmatec.com\/ja\/wp-json\/wp\/v2\/media\/39581"}],"wp:attachment":[{"href":"https:\/\/www.carmatec.com\/ja\/wp-json\/wp\/v2\/media?parent=39572"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.carmatec.com\/ja\/wp-json\/wp\/v2\/categories?post=39572"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.carmatec.com\/ja\/wp-json\/wp\/v2\/tags?post=39572"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}