{"id":56073,"date":"2025-08-14T12:14:33","date_gmt":"2025-08-14T04:14:33","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/56073.html"},"modified":"2025-08-14T12:14:33","modified_gmt":"2025-08-14T04:14:33","slug":"javascript%e6%89%8b%e5%bd%9516-%e5%ae%9a%e6%97%b6%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/56073.html","title":{"rendered":"JavaScript\u624b\u5f5516-\u5b9a\u65f6\u5668"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250814041430-689d62a6561de.jpg\" alt=\"\u753b\u677f\" \/><\/p>\n<p>\u5728JavaScript\u4e2d&#xff0c;\u5b9a\u65f6\u5668\u662f\u7528\u4e8e\u5ef6\u8fdf\u6267\u884c\u4ee3\u7801\u6216\u5468\u671f\u6027\u6267\u884c\u4ee3\u7801\u7684\u5de5\u5177&#xff0c;\u6838\u5fc3\u6709\u4e24\u4e2aAPI&#xff1a;setTimeout&#xff08;\u5ef6\u8fdf\u6267\u884c\u4e00\u6b21&#xff09;\u548csetInterval&#xff08;\u5468\u671f\u6027\u91cd\u590d\u6267\u884c&#xff09;&#xff0c;\u5b83\u4eec\u4f9d\u8d56JavaScript\u7684\u5355\u7ebf\u7a0b\u4e8b\u4ef6\u5faa\u73af\u673a\u5236\u5de5\u4f5c\u3002<\/p>\n<h3>\u4e00\u3001\u5b9a\u65f6\u5668\u7684\u6838\u5fc3API<\/h3>\n<h4>setTimeout&#xff1a;\u5ef6\u8fdf\u6307\u5b9a\u65f6\u95f4\u540e\u6267\u884c\u4e00\u6b21\u4ee3\u7801<\/h4>\n<ul>\n<li>\u4f5c\u7528&#xff1a;\u5728\u6307\u5b9a\u7684\u5ef6\u8fdf\u65f6\u95f4\u540e&#xff0c;\u6267\u884c\u4e00\u6b21\u56de\u8c03\u51fd\u6570&#xff08;\u6216\u4ee3\u7801\u7247\u6bb5&#xff09;\u3002<\/li>\n<li>\u8bed\u6cd5&#xff1a;<\/li>\n<\/ul>\n<p><span class=\"token keyword\">const<\/span> timerId <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span>callback<span class=\"token punctuation\">,<\/span> delay<span class=\"token punctuation\">,<\/span> arg1<span class=\"token punctuation\">,<\/span> arg2<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&#8230;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>&#8211; &#096;callback&#096;&#xff1a;\u5ef6\u8fdf\u540e\u8981\u6267\u884c\u7684\u51fd\u6570&#xff08;\u5fc5\u9009&#xff09;\u3002<br \/>\n&#8211; &#096;delay&#096;&#xff1a;\u5ef6\u8fdf\u65f6\u95f4&#xff08;\u5355\u4f4d&#xff1a;\u6beb\u79d2&#xff0c;ms&#xff09;&#xff0c;\u9ed8\u8ba4\u503c\u4e3a0&#xff08;\u53ef\u9009&#xff09;\u3002<br \/>\n&#8211; &#096;arg1, arg2&#8230;&#096;&#xff1a;\u4f20\u9012\u7ed9&#096;callback&#096;\u7684\u53c2\u6570&#xff08;\u53ef\u9009&#xff09;\u3002<br \/>\n&#8211; \u8fd4\u56de\u503c&#xff1a;&#096;timerId&#096;&#xff08;\u5b9a\u65f6\u5668ID&#xff0c;\u7528\u4e8e\u540e\u7eed\u6e05\u9664\u5b9a\u65f6\u5668&#xff09;\u3002<\/p>\n<ul>\n<li>\u793a\u4f8b&#xff1a;<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ 3\u79d2\u540e\u6253\u5370&#034;\u5ef6\u8fdf\u6267\u884c&#034;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> timer <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">msg<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>msg<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8f93\u51fa&#xff1a;&#034;\u5ef6\u8fdf\u6267\u884c&#034;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3000<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u5ef6\u8fdf\u6267\u884c&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <\/p>\n<h4>setInterval&#xff1a;\u6bcf\u9694\u6307\u5b9a\u65f6\u95f4\u91cd\u590d\u6267\u884c\u4ee3\u7801<\/h4>\n<ul>\n<li>\u4f5c\u7528&#xff1a;\u6bcf\u9694delay\u6beb\u79d2&#xff0c;\u91cd\u590d\u6267\u884c\u4e00\u6b21\u56de\u8c03\u51fd\u6570&#xff0c;\u76f4\u5230\u88ab\u624b\u52a8\u6e05\u9664\u3002<\/li>\n<li>\u8bed\u6cd5&#xff1a;<\/li>\n<\/ul>\n<p><span class=\"token keyword\">const<\/span> timerId <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setInterval<\/span><span class=\"token punctuation\">(<\/span>callback<span class=\"token punctuation\">,<\/span> delay<span class=\"token punctuation\">,<\/span> arg1<span class=\"token punctuation\">,<\/span> arg2<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&#8230;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>&#8211; \u53c2\u6570\u542b\u4e49\u4e0e&#096;setTimeout&#096;\u4e00\u81f4\u3002<br \/>\n&#8211; \u8fd4\u56de\u503c&#xff1a;&#096;timerId&#096;&#xff08;\u7528\u4e8e\u6e05\u9664\u5b9a\u65f6\u5668&#xff09;\u3002<\/p>\n<ul>\n<li>\u793a\u4f8b&#xff1a;<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ \u6bcf\u96941\u79d2\u6253\u5370\u5f53\u524d\u65f6\u95f4<\/span><br \/>\n<span class=\"token keyword\">let<\/span> count <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> timer <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setInterval<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token string\">\u7b2c<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>count<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\">\u6b21\u6267\u884c&#xff1a;<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Date<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toLocaleTimeString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token comment\">\/\/ \u6267\u884c3\u6b21\u540e\u505c\u6b62<\/span><br \/>\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>count <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">clearInterval<\/span><span class=\"token punctuation\">(<\/span>timer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>\u6e05\u9664\u5b9a\u65f6\u5668&#xff1a;clearTimeout\u4e0eclearInterval<\/h4>\n<p>\u5b9a\u65f6\u5668\u521b\u5efa\u540e\u4f1a\u4e00\u76f4\u5b58\u5728&#xff08;setTimeout\u6267\u884c\u540e\u81ea\u52a8\u5931\u6548&#xff0c;setInterval\u4f1a\u6301\u7eed\u6267\u884c&#xff09;&#xff0c;\u82e5\u9700\u63d0\u524d\u7ec8\u6b62&#xff0c;\u9700\u7528\u4ee5\u4e0b\u65b9\u6cd5&#xff1a;<\/p>\n<ul>\n<li>clearTimeout(timerId)&#xff1a;\u6e05\u9664setTimeout\u521b\u5efa\u7684\u5b9a\u65f6\u5668\u3002<\/li>\n<li>clearInterval(timerId)&#xff1a;\u6e05\u9664setInterval\u521b\u5efa\u7684\u5b9a\u65f6\u5668\u3002<\/li>\n<\/ul>\n<p>\u793a\u4f8b&#xff1a;\u63d0\u524d\u6e05\u9664setTimeout<\/p>\n<p><span class=\"token keyword\">const<\/span> timer <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8fd9\u6bb5\u4ee3\u7801\u4e0d\u4f1a\u6267\u884c&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ 1\u79d2\u540e\u6e05\u9664\u5b9a\u65f6\u5668<\/span><br \/>\n<span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">clearTimeout<\/span><span class=\"token punctuation\">(<\/span>timer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5b9a\u65f6\u5668\u5df2\u88ab\u6e05\u9664&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h3>\u4e8c\u3001\u5173\u952e\u7279\u6027\u4e0e\u6ce8\u610f\u4e8b\u9879<\/h3>\n<h4>\u5ef6\u8fdf\u65f6\u95f4\u5e76\u975e\u201c\u7cbe\u786e\u6267\u884c\u65f6\u95f4\u201d<\/h4>\n<ul>\n<li>delay\u662f\u201c\u6700\u5c0f\u5ef6\u8fdf\u65f6\u95f4\u201d&#xff0c;\u800c\u975e\u201c\u7cbe\u786e\u6267\u884c\u65f6\u95f4\u201d\u3002\u56e0\u4e3aJavaScript\u662f\u5355\u7ebf\u7a0b\u7684&#xff0c;\u82e5\u4e3b\u7ebf\u7a0b\u88ab\u5176\u4ed6\u4efb\u52a1&#xff08;\u5982\u540c\u6b65\u4ee3\u7801\u3001\u5176\u4ed6\u56de\u8c03&#xff09;\u963b\u585e&#xff0c;\u5b9a\u65f6\u5668\u56de\u8c03\u4f1a\u88ab\u653e\u5165\u4efb\u52a1\u961f\u5217\u7b49\u5f85&#xff0c;\u5b9e\u9645\u6267\u884c\u65f6\u95f4\u4f1a\u6bd4delay\u957f\u3002  \u793a\u4f8b&#xff1a;<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ \u540c\u6b65\u4ee3\u7801\u963b\u585e\u4e3b\u7ebf\u7a0b5\u79d2<\/span><br \/>\nconsole<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5f00\u59cb&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> start <span class=\"token operator\">&#061;<\/span> Date<span class=\"token punctuation\">.<\/span><span class=\"token function\">now<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>Date<span class=\"token punctuation\">.<\/span><span class=\"token function\">now<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> start <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">5000<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span> <span class=\"token comment\">\/\/ \u963b\u585e5\u79d2<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u867d\u7136\u8bbe\u7f6e\u4e861\u79d2\u5ef6\u8fdf&#xff0c;\u4f46\u5b9e\u9645\u4f1a\u57285\u79d2\u540e&#xff08;\u4e3b\u7ebf\u7a0b\u7a7a\u95f2\u65f6&#xff09;\u6267\u884c<\/span><br \/>\n<span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u4e86&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 5\u79d2\u540e\u624d\u8f93\u51fa<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>\u5b9a\u65f6\u5668\u56de\u8c03\u4e2d\u7684this\u6307\u5411<\/h4>\n<ul>\n<li>\u666e\u901a\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u65f6&#xff0c;this\u9ed8\u8ba4\u6307\u5411\u5168\u5c40\u5bf9\u8c61&#xff08;\u6d4f\u89c8\u5668\u4e2d\u4e3awindow&#xff0c;\u4e25\u683c\u6a21\u5f0f\u4e0b\u4e3aundefined&#xff09;\u3002<\/li>\n<li>\u7bad\u5934\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u65f6&#xff0c;this\u7ee7\u627f\u5916\u5c42\u4f5c\u7528\u57df\u7684this&#xff08;\u4e0e\u5b9a\u4e49\u65f6\u7684\u4e0a\u4e0b\u6587\u4e00\u81f4&#xff09;\u3002  \u793a\u4f8b&#xff1a;<\/li>\n<\/ul>\n<p><span class=\"token keyword\">const<\/span> obj <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token literal-property property\">name<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#034;\u6d4b\u8bd5&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n  <span class=\"token function-variable function\">func1<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">function<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u666e\u901a\u51fd\u6570\u56de\u8c03&#xff1a;this\u6307\u5411window<\/span><br \/>\n    <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">function<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8f93\u51fa&#xff1a;undefined&#xff08;window\u65e0name\u5c5e\u6027&#xff09;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u7bad\u5934\u51fd\u6570\u56de\u8c03&#xff1a;this\u7ee7\u627f\u81eafunc1\u7684this&#xff08;\u5373obj&#xff09;<\/span><br \/>\n    <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8f93\u51fa&#xff1a;&#034;\u6d4b\u8bd5&#034;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\nobj<span class=\"token punctuation\">.<\/span><span class=\"token function\">func1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>setInterval\u7684\u201c\u7d2f\u79ef\u6267\u884c\u201d\u98ce\u9669<\/h4>\n<p>setInterval\u4f1a\u4e25\u683c\u6309\u7167delay\u95f4\u9694\u5b89\u6392\u4e0b\u4e00\u6b21\u6267\u884c&#xff0c;\u82e5\u524d\u4e00\u6b21\u56de\u8c03\u6267\u884c\u65f6\u95f4\u8d85\u8fc7delay&#xff08;\u5982\u56de\u8c03\u5185\u6709\u8017\u65f6\u64cd\u4f5c&#xff09;&#xff0c;\u4f1a\u5bfc\u81f4\u591a\u4e2a\u56de\u8c03\u5806\u79ef&#xff0c;\u5728\u4e3b\u7ebf\u7a0b\u7a7a\u95f2\u65f6\u8fde\u7eed\u6267\u884c\u3002<\/p>\n<p>\u89e3\u51b3\u529e\u6cd5&#xff1a;\u7528setTimeout\u5d4c\u5957\u8c03\u7528\u66ff\u4ee3setInterval&#xff0c;\u786e\u4fdd\u524d\u4e00\u6b21\u6267\u884c\u5b8c\u6210\u540e\u518d\u5b89\u6392\u4e0b\u4e00\u6b21&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u5d4c\u5957setTimeout&#xff1a;\u907f\u514d\u7d2f\u79ef\u6267\u884c<\/span><br \/>\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">repeatTask<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u4efb\u52a1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token comment\">\/\/ \u524d\u4e00\u6b21\u6267\u884c\u5b8c\u540e&#xff0c;\u518d\u5ef6\u8fdf1\u79d2\u5b89\u6392\u4e0b\u4e00\u6b21<\/span><br \/>\n  <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span>repeatTask<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token function\">repeatTask<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>\u5ef6\u8fdf\u65f6\u95f4\u4e3a0\u7684\u7279\u6b8a\u4f5c\u7528<\/h4>\n<p>setTimeout(callback, 0)\u4e0d\u4f1a\u7acb\u5373\u6267\u884c&#xff0c;\u800c\u662f\u5c06\u56de\u8c03\u653e\u5165\u201c\u5b8f\u4efb\u52a1\u961f\u5217\u201d&#xff0c;\u7b49\u5f85\u4e3b\u7ebf\u7a0b\u540c\u6b65\u4ee3\u7801\u6267\u884c\u5b8c\u6bd5\u540e\u7acb\u5373\u6267\u884c\u3002\u5e38\u7528\u4e8e&#xff1a;<\/p>\n<ul>\n<li>\u5c06\u8017\u65f6\u64cd\u4f5c\u63a8\u8fdf\u5230\u4e3b\u7ebf\u7a0b\u7a7a\u95f2\u65f6\u6267\u884c&#xff0c;\u907f\u514d\u963b\u585eUI\u6e32\u67d3\u3002<\/li>\n<li>\u8c03\u6574\u4ee3\u7801\u6267\u884c\u987a\u5e8f&#xff08;\u8ba9\u5f02\u6b65\u4ee3\u7801\u5728\u540c\u6b65\u4ee3\u7801\u540e\u6267\u884c&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u793a\u4f8b&#xff1a;<\/p>\n<p>console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u540c\u6b65\u4ee3\u78011&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ef6\u8fdf0ms\u7684\u4ee3\u7801&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6700\u540e\u6267\u884c&#xff08;\u5728\u540c\u6b65\u4ee3\u7801\u540e&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nconsole<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u540c\u6b65\u4ee3\u78012&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u8f93\u51fa\u987a\u5e8f&#xff1a;\u540c\u6b65\u4ee3\u78011 \u2192 \u540c\u6b65\u4ee3\u78012 \u2192 \u5ef6\u8fdf0ms\u7684\u4ee3\u7801<\/span><\/p>\n<h3>\u4e09\u3001\u5b9a\u65f6\u5668\u7684\u5e94\u7528\u573a\u666f<\/h3>\n<h4>\u5ef6\u8fdf\u6267\u884c&#xff1a;\u5355\u6b21\u5ef6\u8fdf\u540e\u89e6\u53d1\u64cd\u4f5c&#xff08;setTimeout \u4e3a\u4e3b&#xff09;<\/h4>\n<h5>\u9875\u9762\u52a0\u8f7d\u540e\u7684\u975e\u5173\u952e\u8d44\u6e90\u521d\u59cb\u5316<\/h5>\n<p>\u9875\u9762\u6838\u5fc3\u5185\u5bb9&#xff08;\u5982\u9996\u5c4fDOM\u3001\u5173\u952e\u6837\u5f0f&#xff09;\u52a0\u8f7d\u5b8c\u6210\u540e&#xff0c;\u5ef6\u8fdf\u521d\u59cb\u5316\u975e\u7d27\u6025\u8d44\u6e90&#xff08;\u5982\u5e7f\u544a\u3001\u7edf\u8ba1\u811a\u672c\u3001\u975e\u9996\u5c4f\u7ec4\u4ef6&#xff09;&#xff0c;\u907f\u514d\u963b\u585e\u4e3b\u7ebf\u7a0b&#xff0c;\u63d0\u5347\u9996\u5c4f\u52a0\u8f7d\u901f\u5ea6\u3002  &#xff08;\u4f18\u5316\u7528\u6237\u4f53\u9a8c&#xff09;<\/p>\n<p><span class=\"token comment\">\/\/ \u9875\u9762\u52a0\u8f7d\u5b8c\u6210\u540e&#xff0c;\u5ef6\u8fdf2\u79d2\u521d\u59cb\u5316\u975e\u5173\u952e\u5e7f\u544a\u7ec4\u4ef6<\/span><br \/>\nwindow<span class=\"token punctuation\">.<\/span><span class=\"token function\">addEventListener<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;load&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">initAdComponent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u521d\u59cb\u5316\u5e7f\u544a<\/span><br \/>\n    <span class=\"token function\">initAnalytics<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u521d\u59cb\u5316\u7edf\u8ba1<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h5>\u7528\u6237\u64cd\u4f5c\u540e\u7684\u5ef6\u8fdf\u53cd\u9988<\/h5>\n<p>\u7528\u6237\u89e6\u53d1\u64cd\u4f5c&#xff08;\u5982\u70b9\u51fb\u3001\u8f93\u5165&#xff09;\u540e&#xff0c;\u5ef6\u8fdf\u6267\u884c\u63d0\u793a\u6216\u540e\u7eed\u64cd\u4f5c&#xff0c;\u63d0\u5347\u4ea4\u4e92\u4f53\u9a8c\u3002\u4f8b\u5982&#xff1a;<\/p>\n<ul>\n<li>\u6309\u94ae\u70b9\u51fb\u540e\u5ef6\u8fdf\u7981\u7528&#xff08;\u907f\u514d\u5feb\u901f\u91cd\u590d\u70b9\u51fb&#xff09;&#xff1b;<\/li>\n<li>\u8f93\u5165\u6846\u5185\u5bb9\u53d8\u5316\u540e&#xff0c;\u5ef6\u8fdf\u9a8c\u8bc1&#xff08;\u51cf\u5c11\u9891\u7e41\u6821\u9a8c\u7684\u6027\u80fd\u6d88\u8017&#xff09;\u3002<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ \u6309\u94ae\u70b9\u51fb\u540e\u5ef6\u8fdf1\u79d2\u6062\u590d\u53ef\u70b9\u51fb\u72b6\u6001&#xff08;\u9632\u6b62\u91cd\u590d\u63d0\u4ea4&#xff09;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> submitBtn <span class=\"token operator\">&#061;<\/span> document<span class=\"token punctuation\">.<\/span><span class=\"token function\">getElementById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;submit&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nsubmitBtn<span class=\"token punctuation\">.<\/span><span class=\"token function-variable function\">onclick<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">function<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>disabled <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u7acb\u5373\u7981\u7528<\/span><br \/>\n  <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>disabled <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 1\u79d2\u540e\u6062\u590d<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h5>\u6a21\u62df\u5f02\u6b65\u64cd\u4f5c&#xff08;\u6d4b\u8bd5\/\u8c03\u8bd5&#xff09;<\/h5>\n<p>\u5f00\u53d1\u4e2d\u82e5\u9700\u6a21\u62df\u540e\u7aefAPI\u7684\u5ef6\u8fdf\u54cd\u5e94&#xff08;\u5982\u63a5\u53e3\u8bf7\u6c42\u8017\u65f6&#xff09;&#xff0c;\u53ef\u7528 setTimeout \u6a21\u62df\u5f02\u6b65\u7b49\u5f85&#xff0c;\u65e0\u9700\u4f9d\u8d56\u771f\u5b9e\u63a5\u53e3\u3002<\/p>\n<p><span class=\"token comment\">\/\/ \u6a21\u62df\u63a5\u53e3\u8bf7\u6c42&#xff08;\u5ef6\u8fdf1.5\u79d2\u8fd4\u56de\u6570\u636e&#xff09;<\/span><br \/>\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">mockApiRequest<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Promise<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">resolve<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token function\">resolve<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span> <span class=\"token literal-property property\">code<\/span><span class=\"token operator\">:<\/span> <span class=\"token number\">200<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token literal-property property\">data<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;\u6a21\u62df\u6570\u636e&#039;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1500<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4f7f\u7528&#xff1a;\u50cf\u8c03\u7528\u771f\u5b9e\u63a5\u53e3\u4e00\u6837\u4f7f\u7528<\/span><br \/>\n<span class=\"token function\">mockApiRequest<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">res<\/span> <span class=\"token operator\">&#061;&gt;<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>res<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>\u5468\u671f\u6027\u64cd\u4f5c&#xff1a;\u91cd\u590d\u6267\u884c\u67d0\u4efb\u52a1&#xff08;setInterval \u6216\u5d4c\u5957 setTimeout&#xff09;<\/h4>\n<h5>\u5b9e\u65f6\u6570\u636e\u5237\u65b0<\/h5>\n<p>\u9700\u5b9a\u671f\u4ece\u540e\u7aef\u62c9\u53d6\u6700\u65b0\u6570\u636e\u7684\u573a\u666f&#xff08;\u5982\u5b9e\u65f6\u76d1\u63a7\u9762\u677f\u3001\u804a\u5929\u6d88\u606f\u5217\u8868\u3001\u80a1\u7968\u884c\u60c5&#xff09;&#xff0c;\u901a\u8fc7\u5b9a\u65f6\u5668\u5468\u671f\u6027\u8bf7\u6c42\u63a5\u53e3\u3002&#xff08;\u8f6e\u8be2&#xff09;<\/p>\n<p><span class=\"token comment\">\/\/ \u6bcf\u969430\u79d2\u5237\u65b0\u4e00\u6b21\u7528\u6237\u5728\u7ebf\u72b6\u6001<\/span><br \/>\n<span class=\"token keyword\">let<\/span> statusTimer<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">startRefreshStatus<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  statusTimer <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setInterval<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">async<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> res <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> <span class=\"token function\">fetch<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/api\/user\/status&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> status <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> res<span class=\"token punctuation\">.<\/span><span class=\"token function\">json<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">updateStatusUI<\/span><span class=\"token punctuation\">(<\/span>status<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u66f4\u65b0UI\u663e\u793a<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">30000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 30\u79d2\u4e00\u6b21<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u9875\u9762\u79bb\u5f00\u65f6\u505c\u6b62\u5237\u65b0&#xff08;\u907f\u514d\u65e0\u6548\u8bf7\u6c42&#xff09;<\/span><br \/>\nwindow<span class=\"token punctuation\">.<\/span><span class=\"token function\">addEventListener<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;beforeunload&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">clearInterval<\/span><span class=\"token punctuation\">(<\/span>statusTimer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h5>\u5012\u8ba1\u65f6\/\u8ba1\u65f6\u5668<\/h5>\n<p>\u79d2\u6740\u6d3b\u52a8\u3001\u8003\u8bd5\u65f6\u95f4\u3001\u8ba2\u5355\u8d85\u65f6\u7b49\u573a\u666f&#xff0c;\u9700\u5b9e\u65f6\u663e\u793a\u5269\u4f59\u65f6\u95f4&#xff0c;\u901a\u8fc7\u5b9a\u65f6\u5668\u6bcf\u79d2\u66f4\u65b0\u4e00\u6b21\u65f6\u95f4\u6233\u3002<\/p>\n<p><span class=\"token comment\">\/\/ \u5012\u8ba1\u65f6&#xff1a;\u4ece10\u79d2\u5f00\u59cb\u9012\u51cf<\/span><br \/>\n<span class=\"token keyword\">let<\/span> countdown <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> countdownEl <span class=\"token operator\">&#061;<\/span> document<span class=\"token punctuation\">.<\/span><span class=\"token function\">getElementById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;countdown&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> timer <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setInterval<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  countdown<span class=\"token operator\">&#8212;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  countdownEl<span class=\"token punctuation\">.<\/span>innerText <span class=\"token operator\">&#061;<\/span> <span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token string\">\u5269\u4f59<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>countdown<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\">\u79d2<\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>countdown <span class=\"token operator\">&lt;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">clearInterval<\/span><span class=\"token punctuation\">(<\/span>timer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    countdownEl<span class=\"token punctuation\">.<\/span>innerText <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;\u65f6\u95f4\u5230&#xff01;&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h5>\u8f6e\u64ad\u56fe\/\u5e7b\u706f\u7247\u81ea\u52a8\u5207\u6362<\/h5>\n<p>\u8f6e\u64ad\u7ec4\u4ef6\u9700\u8981\u6bcf\u9694\u56fa\u5b9a\u65f6\u95f4\u81ea\u52a8\u5207\u6362\u56fe\u7247&#xff0c;\u7528\u5b9a\u65f6\u5668\u63a7\u5236\u5207\u6362\u903b\u8f91&#xff0c;\u540c\u65f6\u652f\u6301\u7528\u6237\u4ea4\u4e92&#xff08;\u5982\u70b9\u51fb\u3001hover&#xff09;\u65f6\u6682\u505c\/\u6062\u590d\u3002<\/p>\n<p><span class=\"token keyword\">const<\/span> carousel <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token literal-property property\">currentIndex<\/span><span class=\"token operator\">:<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span><br \/>\n  <span class=\"token literal-property property\">timer<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">,<\/span><br \/>\n  <span class=\"token comment\">\/\/ \u542f\u52a8\u8f6e\u64ad&#xff08;\u6bcf\u96945\u79d2\u5207\u6362\u4e00\u5f20&#xff09;<\/span><br \/>\n  <span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>timer <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setInterval<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>currentIndex <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>currentIndex <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">%<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5047\u8bbe5\u5f20\u56fe<\/span><br \/>\n      <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">switchTo<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>currentIndex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5207\u6362\u5230\u5f53\u524d\u7d22\u5f15\u56fe\u7247<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">5000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n  <span class=\"token comment\">\/\/ \u6682\u505c\u8f6e\u64ad&#xff08;\u7528\u6237hover\u65f6&#xff09;<\/span><br \/>\n  <span class=\"token function\">pause<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">clearInterval<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>timer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u521d\u59cb\u5316\u8f6e\u64ad<\/span><br \/>\ncarousel<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u9f20\u6807\u60ac\u505c\u65f6\u6682\u505c&#xff0c;\u79bb\u5f00\u65f6\u6062\u590d<\/span><br \/>\ndocument<span class=\"token punctuation\">.<\/span><span class=\"token function\">querySelector<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;.carousel&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">addEventListener<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;mouseenter&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  carousel<span class=\"token punctuation\">.<\/span><span class=\"token function\">pause<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\ndocument<span class=\"token punctuation\">.<\/span><span class=\"token function\">querySelector<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;.carousel&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">addEventListener<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;mouseleave&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  carousel<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>\u4f18\u5316\u4ea4\u4e92\u4f53\u9a8c&#xff1a;\u63a7\u5236\u64cd\u4f5c\u9891\u7387<\/h4>\n<h5>\u9632\u6296&#xff08;Debounce&#xff09;&#xff1a;\u5ef6\u8fdf\u6267\u884c\u9ad8\u9891\u64cd\u4f5c<\/h5>\n<p>\u5bf9\u4e8e\u9ad8\u9891\u89e6\u53d1\u7684\u4e8b\u4ef6&#xff08;\u5982\u8f93\u5165\u6846\u8f93\u5165\u3001\u7a97\u53e3resize\u3001\u6eda\u52a8&#xff09;&#xff0c;\u901a\u8fc7 setTimeout \u5ef6\u8fdf\u6267\u884c&#xff0c;\u907f\u514d\u9891\u7e41\u89e6\u53d1\u5bfc\u81f4\u7684\u6027\u80fd\u95ee\u9898\u3002&#xff08;\u6027\u80fd\u4f18\u5316&#xff09;\u4f8b\u5982&#xff1a;<\/p>\n<ul>\n<li>\u641c\u7d22\u8f93\u5165\u6846&#xff1a;\u7528\u6237\u505c\u6b62\u8f93\u5165\u540e\u624d\u89e6\u53d1\u641c\u7d22\u8bf7\u6c42&#xff1b;<\/li>\n<li>\u7a97\u53e3\u8c03\u6574&#xff1a;\u7528\u6237\u505c\u6b62\u62d6\u62fd\u7a97\u53e3\u540e\u624d\u91cd\u65b0\u8ba1\u7b97\u5e03\u5c40\u3002<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ \u641c\u7d22\u8f93\u5165\u6846\u9632\u6296&#xff1a;\u505c\u6b62\u8f93\u51651\u79d2\u540e\u624d\u8bf7\u6c42\u63a5\u53e3<\/span><br \/>\n<span class=\"token keyword\">let<\/span> searchTimer<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> searchInput <span class=\"token operator\">&#061;<\/span> document<span class=\"token punctuation\">.<\/span><span class=\"token function\">getElementById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;search&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nsearchInput<span class=\"token punctuation\">.<\/span><span class=\"token function-variable function\">oninput<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">function<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">e<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">clearTimeout<\/span><span class=\"token punctuation\">(<\/span>searchTimer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6bcf\u6b21\u8f93\u5165\u90fd\u6e05\u9664\u4e0a\u4e00\u6b21\u7684\u5b9a\u65f6\u5668<\/span><br \/>\n  searchTimer <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">fetch<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token string\">\/api\/search?keyword&#061;<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>e<span class=\"token punctuation\">.<\/span>target<span class=\"token punctuation\">.<\/span>value<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6267\u884c\u641c\u7d22<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 1\u79d2\u5185\u65e0\u8f93\u5165\u5219\u89e6\u53d1<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h5>\u81ea\u52a8\u4fdd\u5b58&#xff08;\u5982\u8868\u5355\u3001\u7f16\u8f91\u5668&#xff09;<\/h5>\n<p>\u5728\u7ebf\u6587\u6863\u3001\u8868\u5355\u7f16\u8f91\u65f6&#xff0c;\u6bcf\u9694\u4e00\u6bb5\u65f6\u95f4\u81ea\u52a8\u4fdd\u5b58\u5185\u5bb9&#xff0c;\u907f\u514d\u7528\u6237\u56e0\u610f\u5916&#xff08;\u5982\u5237\u65b0\u3001\u5173\u95ed&#xff09;\u4e22\u5931\u6570\u636e\u3002&#xff08;\u6570\u636e\u5b89\u5168&#xff09;<\/p>\n<p><span class=\"token comment\">\/\/ \u7f16\u8f91\u5668\u6bcf30\u79d2\u81ea\u52a8\u4fdd\u5b58<\/span><br \/>\n<span class=\"token keyword\">let<\/span> saveTimer<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">startAutoSave<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  saveTimer <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setInterval<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> content <span class=\"token operator\">&#061;<\/span> editor<span class=\"token punctuation\">.<\/span><span class=\"token function\">getValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u83b7\u53d6\u7f16\u8f91\u5668\u5185\u5bb9<\/span><br \/>\n    localStorage<span class=\"token punctuation\">.<\/span><span class=\"token function\">setItem<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;draft&#039;<\/span><span class=\"token punctuation\">,<\/span> content<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4fdd\u5b58\u5230\u672c\u5730\u5b58\u50a8<\/span><br \/>\n    <span class=\"token function\">showSaveTip<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u663e\u793a\u201c\u5df2\u81ea\u52a8\u4fdd\u5b58\u201d\u63d0\u793a<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">30000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u9875\u9762\u5173\u95ed\u524d\u6e05\u9664\u5b9a\u65f6\u5668<\/span><br \/>\nwindow<span class=\"token punctuation\">.<\/span><span class=\"token function\">addEventListener<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;beforeunload&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">clearInterval<\/span><span class=\"token punctuation\">(<\/span>saveTimer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>\u52a8\u753b\u4e0e\u8fc7\u6e21\u6548\u679c<\/h4>\n<p>\u7b80\u5355\u7684\u6570\u503c\u53d8\u5316\u52a8\u753b&#xff08;\u5982\u6570\u5b57\u6eda\u52a8\u3001\u8fdb\u5ea6\u6761\u52a0\u8f7d&#xff09;\u53ef\u901a\u8fc7\u5b9a\u65f6\u5668\u5b9e\u73b0&#xff08;\u590d\u6742\u52a8\u753b\u66f4\u63a8\u8350 requestAnimationFrame&#xff0c;\u4f46\u5b9a\u65f6\u5668\u9002\u5408\u8f7b\u91cf\u5316\u573a\u666f&#xff09;\u3002  &#xff08;\u4f18\u5316\u4ea4\u4e92\u4f53\u9a8c&#xff09;<\/p>\n<p><span class=\"token comment\">\/\/ \u8fdb\u5ea6\u6761\u4ece0%\u52a8\u753b\u5230100%&#xff08;1\u79d2\u5b8c\u6210&#xff09;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> progressBar <span class=\"token operator\">&#061;<\/span> document<span class=\"token punctuation\">.<\/span><span class=\"token function\">getElementById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;progress&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">let<\/span> progress <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> timer <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setInterval<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  progress <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  progressBar<span class=\"token punctuation\">.<\/span>style<span class=\"token punctuation\">.<\/span>width <span class=\"token operator\">&#061;<\/span> <span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>progress<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\">%<\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>progress <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">clearInterval<\/span><span class=\"token punctuation\">(<\/span>timer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6bcf10ms\u66f4\u65b0\u4e00\u6b21&#xff0c;1\u79d2\u5185\u5b8c\u6210100\u6b65<\/span><\/p>\n<h4>\u6ce8\u610f\u4e8b\u9879&#xff08;\u907f\u5751\u6307\u5357&#xff09;<\/h4>\n<li>\u53ca\u65f6\u6e05\u9664\u5b9a\u65f6\u5668&#xff1a;\u4e0d\u518d\u9700\u8981\u7684\u5b9a\u65f6\u5668\u5fc5\u987b\u7528 clearTimeout\/clearInterval \u6e05\u9664&#xff0c;\u5426\u5219\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f&#xff08;\u5c24\u5176\u662f\u5355\u9875\u5e94\u7528\u4e2d\u7ec4\u4ef6\u9500\u6bc1\u65f6&#xff09;\u3002<\/li>\n<li>\u907f\u514d setInterval \u7d2f\u79ef\u6267\u884c&#xff1a;\u82e5\u56de\u8c03\u51fd\u6570\u6267\u884c\u65f6\u95f4\u8d85\u8fc7 delay&#xff08;\u5982\u8017\u65f6\u64cd\u4f5c&#xff09;&#xff0c;setInterval \u4f1a\u5bfc\u81f4\u591a\u4e2a\u56de\u8c03\u5806\u79ef\u3002\u6b64\u65f6\u63a8\u8350\u7528 **\u5d4c\u5957 **setTimeout \u66ff\u4ee3&#xff0c;\u786e\u4fdd\u524d\u4e00\u6b21\u6267\u884c\u5b8c\u6210\u540e\u518d\u5b89\u6392\u4e0b\u4e00\u6b21&#xff1a;<\/li>\n<p><span class=\"token comment\">\/\/ \u5b89\u5168\u7684\u5468\u671f\u6027\u6267\u884c&#xff08;\u524d\u4e00\u6b21\u5b8c\u6210\u540e\u518d\u5ef6\u8fdf&#xff09;<\/span><br \/>\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">safeRepeat<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">doHeavyTask<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u53ef\u80fd\u8017\u65f6\u7684\u4efb\u52a1<\/span><br \/>\n  <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span>safeRepeat<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4efb\u52a1\u5b8c\u6210\u540e\u518d\u5ef6\u8fdf1\u79d2<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token function\">safeRepeat<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<li>\u5904\u7406 this \u6307\u5411&#xff1a;\u5b9a\u65f6\u5668\u56de\u8c03\u4e2d\u7684\u666e\u901a\u51fd\u6570 this \u6307\u5411\u5168\u5c40\u5bf9\u8c61&#xff08;window&#xff09;&#xff0c;\u9700\u7528\u7bad\u5934\u51fd\u6570\u6216 bind \u7ed1\u5b9a\u6b63\u786e\u7684\u4e0a\u4e0b\u6587&#xff1a;<\/li>\n<p><span class=\"token keyword\">const<\/span> obj <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token literal-property property\">name<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;\u6d4b\u8bd5&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n  <span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u7bad\u5934\u51fd\u6570\u7ee7\u627fobj\u7684this<\/span><br \/>\n    <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6b63\u786e\u8f93\u51fa\u201c\u6d4b\u8bd5\u201d<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h3>\u56db\u3001\u9632\u6296\u4e0e\u8282\u6d41<\/h3>\n<p>\u8282\u6d41&#xff08;Throttle&#xff09;\u548c\u9632\u6296&#xff08;Debounce&#xff09;\u662f\u524d\u7aef\u5f00\u53d1\u4e2d\u7528\u4e8e\u63a7\u5236\u9ad8\u9891\u4e8b\u4ef6\u89e6\u53d1\u9891\u7387\u7684\u4e24\u79cd\u4f18\u5316\u6280\u672f&#xff0c;\u6838\u5fc3\u533a\u522b\u5728\u4e8e\u6267\u884c\u65f6\u673a\u548c\u89e6\u53d1\u89c4\u5219&#xff1a;<\/p>\n<ul>\n<li>\u9632\u6296&#xff08;Debounce&#xff09;&#xff1a;\u4e8b\u4ef6\u89e6\u53d1\u540e&#xff0c;\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\u518d\u6267\u884c\u51fd\u6570&#xff1b;\u5982\u679c\u5728\u8fd9\u6bb5\u65f6\u95f4\u5185\u4e8b\u4ef6\u518d\u6b21\u89e6\u53d1&#xff0c;\u5219\u91cd\u65b0\u8ba1\u65f6&#xff0c;\u76f4\u5230\u6700\u540e\u4e00\u6b21\u89e6\u53d1\u540e\u7b49\u5f85\u65f6\u95f4\u7ed3\u675f\u624d\u6267\u884c\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250814041431-689d62a748119.jpg\" alt=\"\u753b\u677f\" \/><\/p>\n<ul>\n<li>\u8282\u6d41&#xff08;Throttle&#xff09;&#xff1a;\u4e8b\u4ef6\u89e6\u53d1\u540e&#xff0c;\u7acb\u5373\u6267\u884c\u51fd\u6570&#xff0c;\u7136\u540e\u5728\u63a5\u4e0b\u6765\u7684\u4e00\u6bb5\u65f6\u95f4\u5185&#xff08;\u51b7\u5374\u671f&#xff09;&#xff0c;\u65e0\u8bba\u4e8b\u4ef6\u89e6\u53d1\u591a\u5c11\u6b21&#xff0c;\u90fd\u4e0d\u518d\u6267\u884c&#xff0c;\u76f4\u5230\u51b7\u5374\u671f\u7ed3\u675f\u540e\u624d\u80fd\u518d\u6b21\u6267\u884c\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250814041431-689d62a7b52d5.jpg\" alt=\"\u753b\u677f\" \/><\/p>\n<h4>\u9632\u6296&#xff08;Debounce&#xff09;\u793a\u4f8b&#xff1a;\u641c\u7d22\u8f93\u5165\u6846<\/h4>\n<p>\u573a\u666f&#xff1a;\u7528\u6237\u5728\u641c\u7d22\u6846\u8f93\u5165\u65f6&#xff0c;\u4e0d\u9700\u8981\u6bcf\u6b21\u8f93\u5165\u90fd\u7acb\u5373\u8bf7\u6c42\u63a5\u53e3&#xff08;\u5982\u8f93\u5165\u201c\u82f9\u679c\u201d&#xff0c;\u53ef\u80fd\u89e6\u53d1\u201c\u82f9\u201d\u201c\u82f9\u679c\u201d\u591a\u6b21\u8bf7\u6c42&#xff09;&#xff0c;\u800c\u662f\u7b49\u7528\u6237\u505c\u6b62\u8f93\u51651\u79d2\u540e\u518d\u8bf7\u6c42&#xff0c;\u51cf\u5c11\u65e0\u6548\u8bf7\u6c42\u3002<\/p>\n<p>\u4ee3\u7801\u5b9e\u73b0&#xff1a;<\/p>\n<p><span class=\"token keyword\">function<\/span> <span class=\"token function\">debounce<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">fn<span class=\"token punctuation\">,<\/span> delay<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">let<\/span> timer <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4fdd\u5b58\u5b9a\u65f6\u5668ID<\/span><br \/>\n  <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">function<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\"><span class=\"token operator\">&#8230;<\/span>args<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6bcf\u6b21\u89e6\u53d1\u65f6&#xff0c;\u6e05\u9664\u4e0a\u4e00\u6b21\u7684\u5b9a\u65f6\u5668&#xff08;\u91cd\u65b0\u8ba1\u65f6&#xff09;<\/span><br \/>\n    <span class=\"token function\">clearTimeout<\/span><span class=\"token punctuation\">(<\/span>timer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u91cd\u65b0\u8bbe\u7f6e\u5b9a\u65f6\u5668&#xff0c;\u5ef6\u8fdfdelay\u540e\u6267\u884c\u51fd\u6570<\/span><br \/>\n    timer <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token function\">fn<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">apply<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span> args<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6267\u884c\u76ee\u6807\u51fd\u6570<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> delay<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6a21\u62df\u641c\u7d22\u8bf7\u6c42\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">search<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">keyword<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token string\">\u641c\u7d22&#xff1a;<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>keyword<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4e3a\u8f93\u5165\u6846\u7ed1\u5b9a\u9632\u6296\u5904\u7406\u540e\u7684\u641c\u7d22\u51fd\u6570&#xff08;\u5ef6\u8fdf1000ms&#xff09;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> input <span class=\"token operator\">&#061;<\/span> document<span class=\"token punctuation\">.<\/span><span class=\"token function\">getElementById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;search-input&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\ninput<span class=\"token punctuation\">.<\/span>oninput <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">debounce<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">e<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">search<\/span><span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">.<\/span>target<span class=\"token punctuation\">.<\/span>value<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u6548\u679c&#xff1a;<\/p>\n<ul>\n<li>\u7528\u6237\u5feb\u901f\u8f93\u5165\u201c\u82f9\u2192\u82f9\u679c\u201d&#xff0c;\u6574\u4e2a\u8fc7\u7a0b\u4e2d\u8f93\u5165\u95f4\u9694\u5c0f\u4e8e1\u79d2&#xff0c;\u53ea\u4f1a\u5728\u6700\u540e\u4e00\u6b21\u8f93\u5165&#xff08;\u201c\u82f9\u679c\u201d&#xff09;\u540e\u7b49\u5f851\u79d2&#xff0c;\u6267\u884c\u4e00\u6b21search(&#034;\u82f9\u679c&#034;)\u3002<\/li>\n<li>\u5982\u679c\u7528\u6237\u8f93\u5165\u201c\u82f9\u201d\u540e\u505c\u987f2\u79d2&#xff0c;\u4f1a\u6267\u884csearch(&#034;\u82f9&#034;)\u3002<\/li>\n<\/ul>\n<h4>\u8282\u6d41&#xff08;Throttle&#xff09;\u793a\u4f8b&#xff1a;\u6eda\u52a8\u52a0\u8f7d\u6570\u636e<\/h4>\n<p>\u573a\u666f&#xff1a;\u7528\u6237\u6eda\u52a8\u9875\u9762\u65f6&#xff0c;\u9700\u8981\u76d1\u542c\u6eda\u52a8\u4f4d\u7f6e&#xff08;\u5982\u5224\u65ad\u662f\u5426\u5230\u8fbe\u5e95\u90e8\u52a0\u8f7d\u66f4\u591a&#xff09;&#xff0c;\u4f46\u4e0d\u9700\u8981\u6bcf\u6b21\u6eda\u52a8\u90fd\u89e6\u53d1&#xff08;\u53ef\u80fd1\u79d2\u5185\u89e6\u53d1\u51e0\u5341\u6b21&#xff09;&#xff0c;\u800c\u662f\u6bcf\u9694500ms\u89e6\u53d1\u4e00\u6b21&#xff0c;\u907f\u514d\u9891\u7e41\u8ba1\u7b97\u3002<\/p>\n<p>\u4ee3\u7801\u5b9e\u73b0&#xff1a;<\/p>\n<p><span class=\"token keyword\">function<\/span> <span class=\"token function\">throttle<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">fn<span class=\"token punctuation\">,<\/span> interval<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">let<\/span> lastTime <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8bb0\u5f55\u4e0a\u4e00\u6b21\u6267\u884c\u7684\u65f6\u95f4<\/span><br \/>\n  <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">function<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\"><span class=\"token operator\">&#8230;<\/span>args<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> now <span class=\"token operator\">&#061;<\/span> Date<span class=\"token punctuation\">.<\/span><span class=\"token function\">now<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5f53\u524d\u65f6\u95f4\u6233<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5982\u679c\u5f53\u524d\u65f6\u95f4 &#8211; \u4e0a\u4e00\u6b21\u6267\u884c\u65f6\u95f4 &gt;&#061; \u95f4\u9694\u65f6\u95f4&#xff0c;\u5219\u6267\u884c<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>now <span class=\"token operator\">&#8211;<\/span> lastTime <span class=\"token operator\">&gt;&#061;<\/span> interval<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token function\">fn<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">apply<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span> args<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6267\u884c\u76ee\u6807\u51fd\u6570<\/span><br \/>\n      lastTime <span class=\"token operator\">&#061;<\/span> now<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u66f4\u65b0\u4e0a\u4e00\u6b21\u6267\u884c\u65f6\u95f4<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6a21\u62df\u6eda\u52a8\u4f4d\u7f6e\u68c0\u67e5\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">checkScroll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">const<\/span> scrollTop <span class=\"token operator\">&#061;<\/span> document<span class=\"token punctuation\">.<\/span>documentElement<span class=\"token punctuation\">.<\/span>scrollTop<span class=\"token punctuation\">;<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token string\">\u6eda\u52a8\u4f4d\u7f6e&#xff1a;<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>scrollTop<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\">px<\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span><span class=\"token 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