{"id":737,"date":"2025-12-12T10:15:01","date_gmt":"2025-12-12T02:15:01","guid":{"rendered":"https:\/\/www.52runoob.com\/?p=737"},"modified":"2025-12-12T10:15:01","modified_gmt":"2025-12-12T02:15:01","slug":"navigator-useragent","status":"publish","type":"post","link":"https:\/\/www.52runoob.com\/index.php\/2025\/12\/12\/navigator-useragent\/","title":{"rendered":"navigator.useragent"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><code>navigator.userAgent<\/code>&nbsp;\u662f\u6d4f\u89c8\u5668 JavaScript \u73af\u5883\u4e2d\u6700\u5e38\u7528\u7684\u5c5e\u6027\u4e4b\u4e00\uff0c\u7528\u4e8e\u83b7\u53d6&nbsp;<strong>\u7528\u6237\u4ee3\u7406\u5b57\u7b26\u4e32\uff08User-Agent\uff09<\/strong>\uff0c\u5176\u5185\u5bb9\u901a\u5e38\u5305\u542b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6d4f\u89c8\u5668\u540d\u79f0\u4e0e\u7248\u672c<\/li>\n\n\n\n<li>\u64cd\u4f5c\u7cfb\u7edf\u7c7b\u578b\u4e0e\u7248\u672c<\/li>\n\n\n\n<li>\u5f15\u64ce\u4fe1\u606f\uff08WebKit\u3001Blink\u3001Gecko \u7b49\uff09<\/li>\n\n\n\n<li>\u8bbe\u5907\u7c7b\u578b\uff08\u7535\u8111\/\u624b\u673a\/\u5e73\u677f\uff09<\/li>\n\n\n\n<li>\u5176\u4ed6\u9644\u52a0\u4fe1\u606f<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u7ed9\u4f60\u4e00\u4e2a\u5b8c\u6574\u3001\u4e13\u4e1a\u7684\u8bf4\u660e\uff0c\u5305\u542b\u4f7f\u7528\u65b9\u5f0f\u3001\u793a\u4f8b\u3001\u89e3\u6790\u65b9\u6cd5\u4e0e\u6ce8\u610f\u4e8b\u9879\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e00\u3001\u57fa\u672c\u7528\u6cd5<\/h1>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nconsole.log(navigator.userAgent);\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u6267\u884c\u540e\u4f1a\u8f93\u51fa\u5f53\u524d\u6d4f\u89c8\u5668\u7684 User-Agent \u5b57\u7b26\u4e32\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e8c\u3001\u5178\u578b User-Agent \u793a\u4f8b<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0b\u662f\u4f60\u5f53\u524d\u73af\u5883\uff08Mac Safari 16.x\uff09\u7684 User-Agent\uff08\u6765\u81ea\u4f60\u7684\u4f1a\u8bdd\u5143\u6570\u636e\uff09\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nMozilla\/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit\/605.1.15 (KHTML, like Gecko) Version\/26.1 Safari\/605.1.15\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u89e3\u6790\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5b57\u6bb5<\/th><th>\u542b\u4e49<\/th><\/tr><\/thead><tbody><tr><td>Mozilla\/5.0<\/td><td>\u517c\u5bb9\u6807\u8bc6\uff0c\u5386\u53f2\u9057\u7559<\/td><\/tr><tr><td>Macintosh<\/td><td>\u8bbe\u5907\u7c7b\u578b<\/td><\/tr><tr><td>Intel Mac OS X 10_15_7<\/td><td>\u64cd\u4f5c\u7cfb\u7edf<\/td><\/tr><tr><td>AppleWebKit\/605.1.15<\/td><td>\u6e32\u67d3\u5f15\u64ce WebKit<\/td><\/tr><tr><td>Safari\/605.1.15<\/td><td>Safari \u6d4f\u89c8\u5668<\/td><\/tr><tr><td>Version\/26.1<\/td><td>Safari \u7248\u672c\u53f7<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e09\u3001\u5e38\u89c1\u7528\u9014<\/h1>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u5224\u65ad\u8bbe\u5907\u7c7b\u578b\uff08PC\/Mobile\uff09<\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nif (\/Mobi|Android|iPhone|iPad\/i.test(navigator.userAgent)) {\n    console.log(&quot;Mobile device&quot;);\n} else {\n    console.log(&quot;Desktop device&quot;);\n}\n\n<\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">2. \u5224\u65ad\u6d4f\u89c8\u5668\u7c7b\u578b<\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nif (navigator.userAgent.includes(&quot;Chrome&quot;)) {\n    console.log(&quot;Chrome browser&quot;);\n} else if (navigator.userAgent.includes(&quot;Safari&quot;)) {\n    console.log(&quot;Safari browser&quot;);\n}\n\n<\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">3. OS \u7cfb\u7edf\u68c0\u6d4b<\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nif (\/Windows\/i.test(navigator.userAgent)) {\n    console.log(&quot;Windows&quot;);\n}\nif (\/Mac OS X\/i.test(navigator.userAgent)) {\n    console.log(&quot;macOS&quot;);\n}\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u56db\u3001\u63a8\u8350\u66ff\u4ee3 API\uff08\u73b0\u4ee3 Web\uff09<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u4e3a UA \u4f1a\u88ab\u6ee5\u7528\u3001\u5bb9\u6613\u4f2a\u9020\uff0cChrome\u3001Safari \u5df2\u7ecf\u9010\u6b65\u51cf\u5c11\u66b4\u9732\uff0c\u56e0\u6b64\u63a8\u8350\u7528\uff1a<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1.&nbsp;<code>navigator.userAgentData<\/code>\uff08Client Hints\uff09<\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nnavigator.userAgentData.getHighEntropyValues(&#x5B;\n  &quot;platform&quot;,\n  &quot;platformVersion&quot;,\n  &quot;architecture&quot;,\n  &quot;model&quot;,\n  &quot;uaFullVersion&quot;\n]).then(console.log);\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u4f46\u6ce8\u610f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Safari \u76ee\u524d\u8fd8\u00a0<strong>\u4e0d\u5b8c\u5168\u652f\u6301<\/strong><\/li>\n\n\n\n<li>Chrome\u3001Edge \u652f\u6301\u8f83\u597d<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e94\u3001\u5e38\u89c1\u6ce8\u610f\u4e8b\u9879<\/h1>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>User-Agent \u5f88\u5bb9\u6613\u4f2a\u9020<\/strong>\uff08\u901a\u8fc7\u6d4f\u89c8\u5668\u8bbe\u7f6e\u6216 DevTools\uff09\u3002<\/li>\n\n\n\n<li><strong>\u4e0d\u8981\u4f7f\u7528 UA \u505a\u5b89\u5168\u9a8c\u8bc1<\/strong>\uff08\u53ea\u80fd\u7528\u4e8e\u517c\u5bb9\u6027\u5224\u65ad\uff09\u3002<\/li>\n\n\n\n<li><strong>\u4e0d\u8981\u6839\u636e UA \u505a\u4e25\u683c\u8bbe\u5907\u5224\u65ad<\/strong>\uff0c\u4f7f\u7528 \u201cfeature detection\u201d \u66f4\u53ef\u9760\u3002<\/li>\n\n\n\n<li>\u79fb\u52a8\u7aef UA \u7531\u4e8e\u5382\u5546\u788e\u7247\u5316\uff0c\u53ef\u9760\u6027\u66f4\u4f4e\u3002<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4f60\u9700\u8981\uff0c\u6211\u53ef\u4ee5\u63d0\u4f9b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6839\u636e UA \u81ea\u52a8\u5224\u65ad\u6d4f\u89c8\u5668\/\u7cfb\u7edf\u7684\u5b8c\u6574\u4ee3\u7801<\/li>\n\n\n\n<li>\u7528\u6237\u4ee3\u7406\u89e3\u6790\u51fd\u6570\uff08\u4e13\u4e1a\u7248\uff09<\/li>\n\n\n\n<li>UA \u4fe1\u606f\u722c\u866b\u8bc6\u522b\u65b9\u6848<\/li>\n\n\n\n<li>\u624b\u673a\/\u5e73\u677f\/\u684c\u9762\u8bbe\u5907\u7cbe\u51c6\u8bc6\u522b\u7b97\u6cd5<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u544a\u8bc9\u6211\u4f60\u7684\u9700\u6c42\u5373\u53ef\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>navigator.userAgent&nbsp;\u662f\u6d4f\u89c8\u5668 JavaScript&#8230; <a class=\"more-link\" href=\"https:\/\/www.52runoob.com\/index.php\/2025\/12\/12\/navigator-useragent\/\">Continue Reading &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-737","post","type-post","status-publish","format-standard","hentry","category-2"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/737","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/comments?post=737"}],"version-history":[{"count":1,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/737\/revisions"}],"predecessor-version":[{"id":738,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/737\/revisions\/738"}],"wp:attachment":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/media?parent=737"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/categories?post=737"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/tags?post=737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}