{"id":38276,"date":"2023-09-01T12:16:48","date_gmt":"2023-02-19T12:42:51","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91usecallback%e6%98%af%e4%bb%80%e4%b9%88\/"},"modified":"2024-04-30T21:04:53","modified_gmt":"2024-04-30T13:04:53","slug":"%e3%80%90react%e3%80%91usecallback%e6%98%af%e4%bb%80%e4%b9%88","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91usecallback%e6%98%af%e4%bb%80%e4%b9%88\/","title":{"rendered":"\u3010React\u3011useCallback\u662f\u4ec0\u4e48"},"content":{"rendered":"<h1>useCallback\u662f\u4e00\u4e2aReact Hook\uff0c\u7528\u4e8e\u4f18\u5316\u51fd\u6570\u7ec4\u4ef6\u7684\u6027\u80fd\u3002\u5b83\u7528\u4e8e\u9632\u6b62\u5728\u6bcf\u6b21\u6e32\u67d3\u65f6\u91cd\u65b0\u521b\u5efa\u51fd\u6570\u3002<\/h1>\n<p>useCallback()\u8fd4\u56de\u4e86\u4e00\u4e2a\u7f13\u5b58\u7684\u56de\u8c03\u51fd\u6570\u3002<br \/>\n\u53ea\u6709\u4f9d\u8d56\u6570\u7ec4\uff08=[deps] \u5b58\u50a8\u4e86\u56de\u8c03\u51fd\u6570\u6240\u4f9d\u8d56\u7684\u5143\u7d20\u7684\u6570\u7ec4\uff09\u7684\u5143\u7d20\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u624d\u4f1a\u91cd\u65b0\u8ba1\u7b97\u7f13\u5b58\u7684\u503c\u3002<\/p>\n<h1>\u201c\u4ec0\u4e48\u662f\u8bb0\u5fc6\u5316&#8230;?\u201d<\/h1>\n<p>React\u7684\u8bb0\u5fc6\u5316\u662f\u4e00\u79cd\u4fdd\u7559\u8ba1\u7b97\u7ed3\u679c\u5e76\u91cd\u590d\u5229\u7528\u7684\u65b9\u6cd5\u3002\u53ef\u4ee5\u5c06\u5176\u7c7b\u6bd4\u4e3a\u7f13\u5b58\u7684\u6982\u5ff5\u3002\u56e0\u6b64\uff0c\u4ee5\u4e0b\u7684\u8868\u8ff0\u5927\u81f4\u610f\u601d\u76f8\u540c\u3002<\/p>\n<p>\u300c\u8a08\u7b97\u7d50\u679c\u304c\u4fdd\u6301\u3055\u308c\u305f\u5024\u300d=\u300c\u5132\u5b58\u8a08\u7b97\u7d50\u679c\u7684\u503c\u300d<br \/>\n\u300c\u8a08\u7b97\u7d50\u679c\u3092\u518d\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u4fdd\u6301\u3059\u308b\u300d=\u300c\u5132\u5b58\u8a08\u7b97\u7d50\u679c\u4ee5\u4fbf\u518d\u5229\u7528\u300d<\/p>\n<p>\u53ef\u4ee5\u671f\u671b\u901a\u8fc7\u8bb0\u5fc6\u5316\u6765\u63d0\u9ad8\u6027\u80fd\uff0c\u56e0\u4e3a\u4e0d\u518d\u9700\u8981\u6bcf\u6b21\u90fd\u8fdb\u884c\u8ba1\u7b97\u3002<\/p>\n<h1>\u57fa\u672c\u53e5\u6cd5<\/h1>\n<pre class=\"post-pre\"><code><span class=\"nf\">useCallback<\/span><span class=\"p\">(<\/span><span class=\"nx\">callbackFunction<\/span><span class=\"p\">,<\/span> <span class=\"p\">[<\/span><span class=\"nx\">deps<\/span><span class=\"p\">]);<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u60f3\u8981\u5bf9\u8f93\u51fa\u53d8\u91cf\u540d\u4e3aname\u7684\u51fd\u6570\u4f7f\u7528console.log\u8fdb\u884c\u8bb0\u5fc6\u5316\u5904\u7406\uff0c\u53ef\u4ee5\u6309\u4ee5\u4e0b\u65b9\u5f0f\u64cd\u4f5c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">callback<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">useCallback<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">name<\/span><span class=\"p\">),<\/span> <span class=\"p\">[<\/span><span class=\"nx\">name<\/span><span class=\"p\">]);<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u4f9d\u8d56\u7684\u5143\u7d20\u6709\u66f4\u65b0\uff0c\u51fd\u6570\u4f1a\u91cd\u65b0\u751f\u6210\u3002<br \/>\n\u5982\u679c\u6ca1\u6709\u4f9d\u8d56\u7684\u5143\u7d20\uff0c\u4f9d\u8d56\u6570\u7ec4\u4e3a\u7a7a\u4e5f\u662f\u53ef\u4ee5\u7684\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">callback<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">useCallback<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">\u4f55\u304b\u3092\u3059\u308b<\/span><span class=\"dl\">\"<\/span><span class=\"p\">),<\/span> <span class=\"p\">[]);<\/span>\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>useCallback\u662f\u4e00\u4e2aReact Hook\uff0c\u7528\u4e8e\u4f18\u5316\u51fd\u6570\u7ec4\u4ef6\u7684\u6027\u80fd\u3002\u5b83\u7528\u4e8e\u9632\u6b62\u5728\u6bcf\u6b21\u6e32\u67d3\u65f6\u91cd\u65b0\u521b\u5efa\u51fd\u6570\u3002 [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-38276","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u3010React\u3011useCallback\u662f\u4ec0\u4e48 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u3010react\u3011usecallback\u662f\u4ec0\u4e48\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010React\u3011useCallback\u662f\u4ec0\u4e48\" \/>\n<meta property=\"og:description\" content=\"useCallback\u662f\u4e00\u4e2aReact Hook\uff0c\u7528\u4e8e\u4f18\u5316\u51fd\u6570\u7ec4\u4ef6\u7684\u6027\u80fd\u3002\u5b83\u7528\u4e8e\u9632\u6b62\u5728\u6bcf\u6b21\u6e32\u67d3\u65f6\u91cd\u65b0\u521b\u5efa\u51fd\u6570\u3002 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u3010react\u3011usecallback\u662f\u4ec0\u4e48\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-02-19T12:42:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-30T13:04:53+00:00\" \/>\n<meta name=\"author\" content=\"\u6587, \u7fd4\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6587, \u7fd4\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91usecallback%e6%98%af%e4%bb%80%e4%b9%88\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91usecallback%e6%98%af%e4%bb%80%e4%b9%88\/\",\"name\":\"\u3010React\u3011useCallback\u662f\u4ec0\u4e48 - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-02-19T12:42:51+00:00\",\"dateModified\":\"2024-04-30T13:04:53+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/64d5cc7727fffbff2f9a2a8da1de3e5c\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91usecallback%e6%98%af%e4%bb%80%e4%b9%88\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91usecallback%e6%98%af%e4%bb%80%e4%b9%88\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91usecallback%e6%98%af%e4%bb%80%e4%b9%88\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u3010React\u3011useCallback\u662f\u4ec0\u4e48\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/64d5cc7727fffbff2f9a2a8da1de3e5c\",\"name\":\"\u6587, \u7fd4\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/920c3d673e0bccacc98e5e6b7149bb3c22edd8d39cb753e5d7d7e471498118a1?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/920c3d673e0bccacc98e5e6b7149bb3c22edd8d39cb753e5d7d7e471498118a1?s=96&d=mm&r=g\",\"caption\":\"\u6587, \u7fd4\"},\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/author\/wenxiang\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91usecallback%e6%98%af%e4%bb%80%e4%b9%88\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\u3010React\u3011useCallback\u662f\u4ec0\u4e48 - Blog - Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/\u3010react\u3011usecallback\u662f\u4ec0\u4e48\/","og_locale":"zh_CN","og_type":"article","og_title":"\u3010React\u3011useCallback\u662f\u4ec0\u4e48","og_description":"useCallback\u662f\u4e00\u4e2aReact Hook\uff0c\u7528\u4e8e\u4f18\u5316\u51fd\u6570\u7ec4\u4ef6\u7684\u6027\u80fd\u3002\u5b83\u7528\u4e8e\u9632\u6b62\u5728\u6bcf\u6b21\u6e32\u67d3\u65f6\u91cd\u65b0\u521b\u5efa\u51fd\u6570\u3002 [&hellip;]","og_url":"https:\/\/www.silicloud.com\/zh\/blog\/\u3010react\u3011usecallback\u662f\u4ec0\u4e48\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2023-02-19T12:42:51+00:00","article_modified_time":"2024-04-30T13:04:53+00:00","author":"\u6587, \u7fd4","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"\u6587, \u7fd4"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91usecallback%e6%98%af%e4%bb%80%e4%b9%88\/","url":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91usecallback%e6%98%af%e4%bb%80%e4%b9%88\/","name":"\u3010React\u3011useCallback\u662f\u4ec0\u4e48 - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website"},"datePublished":"2023-02-19T12:42:51+00:00","dateModified":"2024-04-30T13:04:53+00:00","author":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/64d5cc7727fffbff2f9a2a8da1de3e5c"},"breadcrumb":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91usecallback%e6%98%af%e4%bb%80%e4%b9%88\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91usecallback%e6%98%af%e4%bb%80%e4%b9%88\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91usecallback%e6%98%af%e4%bb%80%e4%b9%88\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.silicloud.com\/zh\/blog\/"},{"@type":"ListItem","position":2,"name":"\u3010React\u3011useCallback\u662f\u4ec0\u4e48"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website","url":"https:\/\/www.silicloud.com\/zh\/blog\/","name":"Blog - Silicon Cloud","description":"","inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/64d5cc7727fffbff2f9a2a8da1de3e5c","name":"\u6587, \u7fd4","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/920c3d673e0bccacc98e5e6b7149bb3c22edd8d39cb753e5d7d7e471498118a1?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/920c3d673e0bccacc98e5e6b7149bb3c22edd8d39cb753e5d7d7e471498118a1?s=96&d=mm&r=g","caption":"\u6587, \u7fd4"},"url":"https:\/\/www.silicloud.com\/zh\/blog\/author\/wenxiang\/"},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91usecallback%e6%98%af%e4%bb%80%e4%b9%88\/#local-main-organization-logo","url":"","contentUrl":"","caption":"Blog - Silicon Cloud"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/38276","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/comments?post=38276"}],"version-history":[{"count":2,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/38276\/revisions"}],"predecessor-version":[{"id":94291,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/38276\/revisions\/94291"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/media?parent=38276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/categories?post=38276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/tags?post=38276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}