{"id":38078,"date":"2023-04-06T21:46:27","date_gmt":"2024-01-19T00:24:02","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8-react-profiler-api-%e6%9d%a5%e8%af%86%e5%88%ab-react-%e5%ba%94%e7%94%a8%e4%b8%ad%e7%9a%84%e6%80%a7%e8%83%bd%e7%93%b6%e9%a2%88%ef%bc%81%e9%80%9a%e8%bf%87%e5%88%86%e6%9e%90%e6%80%a7\/"},"modified":"2024-04-29T22:15:44","modified_gmt":"2024-04-29T14:15:44","slug":"%e4%bd%bf%e7%94%a8-react-profiler-api-%e6%9d%a5%e8%af%86%e5%88%ab-react-%e5%ba%94%e7%94%a8%e4%b8%ad%e7%9a%84%e6%80%a7%e8%83%bd%e7%93%b6%e9%a2%88%ef%bc%81%e9%80%9a%e8%bf%87%e5%88%86%e6%9e%90%e6%80%a7","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8-react-profiler-api-%e6%9d%a5%e8%af%86%e5%88%ab-react-%e5%ba%94%e7%94%a8%e4%b8%ad%e7%9a%84%e6%80%a7%e8%83%bd%e7%93%b6%e9%a2%88%ef%bc%81%e9%80%9a%e8%bf%87%e5%88%86%e6%9e%90%e6%80%a7\/","title":{"rendered":"\u4f7f\u7528 React Profiler API \u6765\u8bc6\u522b React \u5e94\u7528\u4e2d\u7684\u6027\u80fd\u74f6\u9888\uff01\u901a\u8fc7\u5206\u6790\u6027\u80fd\u6765\u4e86\u89e3\u5982\u4f55\u4f18\u5316"},"content":{"rendered":"<p>\u4f60\u60f3\u8981\u627e\u51fa\u548c\u4f18\u5316React\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u74f6\u9888\u5417\uff1f\u501f\u52a9React Profiler API\uff0c\u8fd9\u662f\u53ef\u80fd\u7684\u3002\u672c\u6587\u5c06\u63d0\u4f9b\u4eceReact Profiler API\u7684\u57fa\u7840\u5230\u56de\u8c03\u51fd\u6570\u7684\u8be6\u7ec6\u89e3\u91ca\u3002<\/p>\n<h2>\u76ee\u5f55<\/h2>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u9996\u5148<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>React Profiler\u662f\u4ec0\u4e48<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>React Profiler API\u7684\u57fa\u672c\u6982\u8ff0<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u56de\u8c03\u51fd\u6570\u7684\u8be6\u7ec6\u89e3\u91ca<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5b9e\u9645\u4f7f\u7528\u793a\u4f8b<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u603b\u7ed3<\/ol>\n<h3>\u9996\u5148<\/h3>\n<p>React Profiler API\u662fReact\u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\u5206\u6790\u7684\u5f3a\u5927\u5de5\u5177\u3002\u8fd9\u7bc7\u6587\u7ae0\u5c06\u6df1\u5165\u63a2\u8ba8\u5b83\u7684\u5438\u5f15\u529b\u3002<\/p>\n<h3>2. \u4ec0\u4e48\u662f React Profiler?<\/h3>\n<p>React Profiler \u662f\u4e00\u4e2a\u7528\u4e8e\u5206\u6790\u7ec4\u4ef6\u6e32\u67d3\u4fe1\u606f\u7684\u5de5\u5177\u3002<\/p>\n<h3>React Profiler API\u7684\u57fa\u7840<\/h3>\n<p>\u901a\u8fc7\u4f7f\u7528Profiler\u7ec4\u4ef6\uff0c\u53ef\u4ee5\u83b7\u53d6\u7ec4\u4ef6\u7684\u6027\u80fd\u4fe1\u606f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"nx\">React<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">Profiler<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">react<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">function<\/span> <span class=\"nf\">MyComponent<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return <\/span><span class=\"p\">(<\/span>\r\n    <span class=\"p\">&lt;<\/span><span class=\"nc\">Profiler<\/span> <span class=\"na\">id<\/span><span class=\"p\">=<\/span><span class=\"s\">\"MyComponent\"<\/span> <span class=\"na\">onRender<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">callback<\/span><span class=\"si\">}<\/span><span class=\"p\">&gt;<\/span>\r\n      <span class=\"si\">{<\/span><span class=\"cm\">\/* \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u5185\u5bb9 *\/<\/span><span class=\"si\">}<\/span>\r\n    <span class=\"p\">&lt;\/<\/span><span class=\"nc\">Profiler<\/span><span class=\"p\">&gt;<\/span>\r\n  <span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h3>4. callback\u51fd\u6570\u7684\u8be6\u7ec6\u89e3\u91ca<\/h3>\n<p>onRender\u56de\u8c03\u51fd\u6570\u63a5\u6536\u6e32\u67d3\u7684\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">function<\/span> <span class=\"nf\">callback<\/span><span class=\"p\">(<\/span>\r\n  <span class=\"nx\">id<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">phase<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">actualDuration<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">baseDuration<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">startTime<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">commitTime<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">interactions<\/span>\r\n<span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"c1\">\/\/ \u3053\u3053\u3067\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u30c7\u30fc\u30bf\u3092\u6271\u3046<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>id: \u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u3055\u308c\u3066\u3044\u308bProfiler\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u4e00\u610f\u306eID\u3002\u8907\u6570\u306eProfiler\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306b\u8b58\u5225\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>phase: &#8220;mount&#8221;\u307e\u305f\u306f&#8221;update&#8221;\u306e\u3044\u305a\u308c\u304b\u3002\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u6bb5\u968e\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<p>actualDuration: \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u305d\u306e\u5b50\u5b6b\u304c\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u308b\u306e\u306b\u304b\u304b\u3063\u305f\u5b9f\u969b\u306e\u6642\u9593\uff08\u30df\u30ea\u79d2\uff09\u3002\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3092\u7279\u5b9a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>baseDuration: \u7121\u99c4\u306a\u518d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u306a\u3044\u5834\u5408\u306e\u7406\u60f3\u7684\u306a\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u6642\u9593\uff08\u30df\u30ea\u79d2\uff09\u3002<\/p>\n<p>startTime: React\u304c\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u958b\u59cb\u3057\u305f\u6642\u9593\u3002\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u52b9\u7387\u3092\u8a08\u6e2c\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>commitTime: React\u304c\u5909\u66f4\u3092DOM\u306b\u30b3\u30df\u30c3\u30c8\u3057\u305f\u6642\u9593\u3002\u30d6\u30e9\u30a6\u30b6\u304c\u63cf\u753b\u3057\u305f\u6642\u9593\u3092\u77e5\u308b\u305f\u3081\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>interactions: \u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306b\u95a2\u9023\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u306e\u30a4\u30f3\u30bf\u30e9\u30af\u30b7\u30e7\u30f3\u3002\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u304c\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306b\u3069\u3046\u5f71\u97ff\u3057\u305f\u304b\u3092\u8ffd\u8de1\u3057\u307e\u3059\u3002<\/p>\n<h3>5. \u5b9e\u9645\u4f7f\u7528\u6848\u4f8b<\/h3>\n<pre class=\"post-pre\"><code><span class=\"kd\">function<\/span> <span class=\"nf\">callback<\/span><span class=\"p\">(<\/span><span class=\"nx\">id<\/span><span class=\"p\">,<\/span> <span class=\"nx\">phase<\/span><span class=\"p\">,<\/span> <span class=\"nx\">actualDuration<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"s2\">`\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8 <\/span><span class=\"p\">${<\/span><span class=\"nx\">id<\/span><span class=\"p\">}<\/span><span class=\"s2\"> \u304c <\/span><span class=\"p\">${<\/span><span class=\"nx\">phase<\/span><span class=\"p\">}<\/span><span class=\"s2\"> \u30d5\u30a7\u30fc\u30ba\u3067 <\/span><span class=\"p\">${<\/span><span class=\"nx\">actualDuration<\/span><span class=\"p\">}<\/span><span class=\"s2\"> \u30df\u30ea\u79d2\u304b\u304b\u308a\u307e\u3057\u305f\u3002`<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u5c06\u6e32\u67d3\u5177\u4f53\u7ec4\u4ef6\u6240\u9700\u7684\u65f6\u95f4\u7b49\u4fe1\u606f\u8f93\u51fa\u5230\u65e5\u5fd7\u4e2d\u3002<\/p>\n<h3>6. \u6c47\u603b<\/h3>\n<p>React Profiler API\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u7528\u4e8e\u5206\u6790\u548c\u4f18\u5316React\u5e94\u7528\u7684\u6027\u80fd\u3002\u7279\u522b\u662f\u901a\u8fc7\u4f7f\u7528\u56de\u8c03\u51fd\u6570\uff0c\u53ef\u4ee5\u8fdb\u884c\u5177\u4f53\u7684\u5206\u6790\u3002<\/p>\n<p>\u5982\u679c\u6709\u559c\u6b61\u6216\u8a55\u8ad6\uff0c\u8acb\u96a8\u610f\u767c\u8868\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f60\u60f3\u8981\u627e\u51fa\u548c\u4f18\u5316React\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u74f6\u9888\u5417\uff1f\u501f\u52a9React Profiler API\uff0c\u8fd9\u662f\u53ef\u80fd\u7684\u3002\u672c\u6587\u5c06\u63d0 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-38078","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This 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\u5e94\u7528\u4e2d\u7684\u6027\u80fd\u74f6\u9888\uff01\u901a\u8fc7\u5206\u6790\u6027\u80fd\u6765\u4e86\u89e3\u5982\u4f55\u4f18\u5316\" \/>\n<meta property=\"og:description\" content=\"\u4f60\u60f3\u8981\u627e\u51fa\u548c\u4f18\u5316React\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u74f6\u9888\u5417\uff1f\u501f\u52a9React Profiler API\uff0c\u8fd9\u662f\u53ef\u80fd\u7684\u3002\u672c\u6587\u5c06\u63d0 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528-react-profiler-api-\u6765\u8bc6\u522b-react-\u5e94\u7528\u4e2d\u7684\u6027\u80fd\u74f6\u9888\uff01\u901a\u8fc7\u5206\u6790\u6027\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-01-19T00:24:02+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-29T14:15:44+00:00\" \/>\n<meta name=\"author\" content=\"\u97f5, \u79d1\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" 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