{"id":9929,"date":"2021-04-26T20:12:23","date_gmt":"2021-04-26T12:12:23","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=9929"},"modified":"2021-04-26T21:50:58","modified_gmt":"2021-04-26T13:50:58","slug":"safari-buildin-custom-element-polyfill","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2021\/04\/safari-buildin-custom-element-polyfill\/","title":{"rendered":"Safari\u4e0d\u652f\u6301build-in\u81ea\u5b9a\u4e49\u5143\u7d20\u7684\u517c\u5bb9\u5904\u7406"},"content":{"rendered":"<p>by <a href=\"https:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=9929\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=9929<\/a><br \/>\n\u672c\u6587\u6b22\u8fce\u5206\u4eab\u4e0e\u805a\u5408\uff0c\u5168\u6587\u8f6c\u8f7d\u5c31\u4e0d\u5fc5\u4e86\uff0c\u5c0a\u91cd\u7248\u6743\uff0c\u5708\u5b50\u5c31\u8fd9\u4e48\u5927\uff0c\u82e5\u6025\u7528\u53ef\u4ee5\u8054\u7cfb\u6388\u6743\u3002<\/p>\n<p><script>window.wxShareImgUrl = 'https:\/\/www.zhangxinxu.com\/study\/image\/share\/202104-buildin-polyfill.png';<\/script><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202104\/custom-polyfill-cover.png\" width=\"480\" height=\"330\" alt=\"\u5360\u4f4d\u5c01\u9762\u56fe \u9888\u690e\u5e2e\u52a9\" class=\"alignright clip thumb size-medium\" \/><\/p>\n<h3>\u4e00\u3001Safari\u53c8\u62d6\u540e\u817f\u4e86<\/h3>\n<p>Safari\u6d4f\u89c8\u5668\u4e0d\u652f\u6301build-in\u81ea\u5b9a\u4e49\u5143\u7d20\uff0c\u53ea\u652f\u6301\u533f\u540d\u81ea\u5b9a\u4e49\u5143\u7d20\u3002<\/p>\n<p>\u517c\u5bb9\u6027\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202104\/2021-04-23_102517.png\" width=\"660\" height=\"456\" alt=\"Safari\u4e0d\u652f\u6301\u5185\u7f6e\u81ea\u5b9a\u4e49\u5143\u7d20\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u4e5f\u5c31\u662fSafari\u9ed8\u8ba4\u4ec5\u652f\u6301\u4e0b\u9762\u8fd9\u79cdHTML\u683c\u5f0f\u7684UI\u7ec4\u4ef6\uff1a<\/p>\n<pre>&lt;ui-tips&gt;&lt;\/ui-tips&gt;\r\n&lt;ui-drop&gt;&lt;\/ui-drop&gt;\r\n&lt;ui-tab&gt;&lt;\/ui-tab&gt;\r\n&lt;ui-lighttip&gt;&lt;\/ui-lighttip&gt;<\/pre>\n<p>\u4e0d\u652f\u6301\u4e0b\u9762\u8fd9\u79cd\u901a\u8fc7<code>is<\/code>\u5c5e\u6027\u5728\u539f\u751fHTML\u5143\u7d20\u4e0a\u6269\u5c55\u7684web components\u7ec4\u4ef6\u3002<\/p>\n<pre>&lt;input is=\"ui-color\"&gt;\r\n&lt;select is=\"ui-select\"&gt;&lt;\/select&gt;\r\n&lt;form is=\"ui-form\"&gt;&lt;\/form&gt;\r\n&lt;table is=\"ui-table\"&gt;&lt;\/table&gt;\r\n<\/pre>\n<p>\u8fd9\u5c31\u9ebb\u70e6\u4e86\uff0c\u672c\u6765\u5f88\u5e05\u6c14\u7684UI\u7ec4\u4ef6\uff0c\u5982\u679c\u53ea\u80fd\u4f7f\u7528\u533f\u540d\u81ea\u5b9a\u4e49\u5143\u7d20\u5b9e\u73b0\uff0c\u5c31\u5f88\u5570\u55e6\u4e0e\u4e4f\u5473\u3002<\/p>\n<p>\u6216\u8005\uff0c\u72e0\u72e0\u5fc3\uff0c\u65e0\u89c6Safari\u6d4f\u89c8\u5668\u7528\u6237\u7fa4\u4f53\uff0c\u53ef\u4ee5\u7684\uff0c\u7b49\u7740\u88ab\u89e3\u96c7\u5c31\u884c\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u6700\u597d\u7684\u89e3\u51b3\u65b9\u6cd5\u5c31\u662f\u8ba9Safari\u6d4f\u89c8\u5668\u4e5f\u652f\u6301\u5185\u7f6e\u81ea\u5b9a\u4e49\u5143\u7d20\u7ec4\u4ef6\u7684\u5f00\u53d1\u3002<\/p>\n<p>\u600e\u4e48\u529e\u5462\uff1f<\/p>\n<h3>\u4e8c\u3001Polyfill build-in custom element<\/h3>\n<p>\u89e3\u51b3\u65b9\u6cd5\u6bd4\u8f83\u7b80\u5355\uff0c\u6709\u4e13\u95e8polyfill\uff0c\u53ea\u8981\u5f15\u5165\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n<p>\u9879\u76ee\u5730\u5740\uff1a<\/p>\n<p><a href=\"https:\/\/github.com\/WebReflection\/custom-elements-builtin\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/github.com\/WebReflection\/custom-elements-builtin<\/a><\/p>\n<p>\u9002\u7528\u4e8e\u652f\u6301\u81ea\u5b9a\u4e49\u5143\u7d20\uff0c\u4f46\u662f\u4e0d\u652f\u6301\u5185\u7f6e\u81ea\u5b9a\u4e49\u5143\u7d20\u7684\u573a\u666f\uff0c\u4e3b\u8981\u5c31\u662f\u9488\u5bf9Safari\u6d4f\u89c8\u5668\u3002<\/p>\n<p>\u5176\u4e2d\u7684index.js\u662f\u975e\u538b\u7f29\u7248\uff0ces.js\u662f\u538b\u7f29\u7248\u3002<\/p>\n<p>\u4f7f\u7528\u7684\u65f6\u5019\u53ef\u4ee5\u76f4\u63a5\u8fd9\u4e48\u4f7f\u7528\uff1a<\/p>\n<pre><span><span class=\"green\">&lt;!-- HTML\u6587\u6863\u7684\u9876\u90e8 --&gt;<\/span><\/span>\r\n<span><span class=\"hljs-tag\">&lt;<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><span><span><span class=\"handlebars\"><span class=\"xml\">\r\nif (!(self.chrome || self.navigator))\r\n  document.write('<\/span><\/span><span><span class=\"handlebars\"><span class=\"xml\"><span class=\"hljs-tag\">&lt;<\/span><\/span><\/span><span><span class=\"handlebars\"><span class=\"xml\"><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><\/span><\/span><span class=\"handlebars\"><span class=\"xml\"><span class=\"hljs-tag\"> <\/span><\/span><\/span><span><span class=\"handlebars\"><span class=\"xml\"><span class=\"hljs-tag\"><span class=\"hljs-attr\">src<\/span><\/span><\/span><\/span><\/span><span class=\"handlebars\"><span class=\"xml\"><span class=\"hljs-tag\">=<\/span><\/span><\/span><span><span class=\"handlebars\"><span class=\"xml\"><span class=\"hljs-tag\"><span class=\"hljs-string\">\"\/\/unpkg.com\/@webreflection\/custom-elements-builtin\"<\/span><\/span><\/span><\/span><\/span><span class=\"handlebars\"><span class=\"xml\"><span class=\"hljs-tag\">&gt;<\/span><\/span><\/span><\/span><span><span><span><span class=\"handlebars\"><span class=\"xml\"><span class=\"handlebars\"><span class=\"xml\"><span class=\"hljs-tag\">&lt;<\/span><\/span><\/span><\/span><\/span><span><span class=\"handlebars\"><span class=\"xml\"><span class=\"handlebars\"><span class=\"xml\"><span class=\"hljs-tag\"><span class=\"hljs-name\">\\x2fscript<\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"handlebars\"><span class=\"xml\"><span class=\"handlebars\"><span class=\"xml\"><span class=\"hljs-tag\">&gt;<\/span><\/span><\/span><\/span><\/span><\/span><span class=\"handlebars\"><span class=\"xml\"><span class=\"handlebars\"><span class=\"xml\">');\r\n<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span><span class=\"hljs-tag\">&lt;\/<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><\/pre>\n<p>\u4e0d\u8fc7<code>if<\/code>\u5224\u65ad\u5916\u52a0<code>document.write<\/code>\u5e76\u4e0d\u662f\u4e00\u4e2a\u597d\u7528\u6cd5\uff0c\u4f46\u662f\uff0c\u6211\u4eec\u76f4\u63a5\u5f15\u7528 \/\/unpkg.com\/@webreflection\/custom-elements-builtin \u8fd9\u4e2a\u5730\u5740\u4e5f\u662f\u4e0d\u884c\u7684\u3002<\/p>\n<p>\u56e0\u4e3a\u8fd9\u4e2aPolyfill\u4e2d\u5e76\u6ca1\u6709\u5bf9\u6d4f\u89c8\u5668\u8fdb\u884c\u533a\u5206\uff0c\u6309\u7167\u4f5c\u8005\u7684\u8bdd\uff0c\u5c31\u662f\u6d4f\u89c8\u5668\u7684\u7279\u6027\u662f\u4e00\u76f4\u53d8\u5316\u7684\uff0c\u505a\u6d4f\u89c8\u5668\u7c7b\u578b\u5224\u65ad\u662f\u4e0d\u9760\u8c31\u7684\u3002<\/p>\n<p>\u4e0a\u9762\u8fd9\u53e5\u8bdd\u6ca1\u9519\uff0c\u4f46\u662f\uff0c\u6211\u4eec\u53ef\u4ee5\u4e0d\u8fdb\u884c\u6d4f\u89c8\u5668\u533a\u5206\uff0c\u76f4\u63a5\u57fa\u4e8eAPI\u7279\u6027\u533a\u5206\u5c31\u597d\u4e86\u3002<\/p>\n<p><span class=\"hidden\">\/\/zxx: \u5982\u679c\u4f60\u770b\u5230\u8fd9\u6bb5\u6587\u5b57\uff0c\u8bf4\u660e\u4f60\u73b0\u5728\u8bbf\u95ee\u662f\u4f53\u9a8c\u7cdf\u7cd5\u7684\u5783\u573e\u76d7\u7248\u7f51\u7ad9\uff0c\u4f60\u53ef\u4ee5\u8bbf\u95ee\u539f\u6587\u83b7\u5f97\u5f88\u597d\u7684\u4f53\u9a8c\uff1ahttps:\/\/www.zhangxinxu.com\/wordpress\/?p=9929\uff08\u4f5c\u8005\u5f20\u946b\u65ed\uff09<\/span><\/p>\n<p>\u4e8e\u662f\uff0c\u6211\u5bf9\u539f\u59cb\u7684JS\u4ee3\u7801\u505a\u4e86\u5185\u7f6e\u7684\u5224\u65ad\u5904\u7406\u3002<\/p>\n<p>\u5224\u65ad\u903b\u8f91\u5982\u4e0b\u4ee3\u7801\u6240\u793a\uff1a<\/p>\n<pre><span><span><span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span><\/span><\/span><span class=\"hljs-class\"> <\/span><span><span class=\"hljs-class\"><span class=\"hljs-title\">AnyClass<\/span><\/span><\/span><span class=\"hljs-class\"> <\/span><span><span class=\"hljs-class\"><span class=\"hljs-keyword\">extends<\/span><\/span><\/span><span class=\"hljs-class\"> <\/span><span><span class=\"hljs-class\"><span class=\"hljs-title\">HTMLBRElement<\/span><\/span><\/span><span class=\"hljs-class\"> <\/span><\/span>{\r\n  <span>constructor<\/span> () {\r\n    <span><span class=\"hljs-keyword\">super<\/span><\/span>();\r\n\r\n    <span><span class=\"hljs-keyword\">this<\/span><\/span>.someMethod = <span><span class=\"hljs-literal\">true<\/span><\/span>;\r\n  }\r\n}\r\n\r\n<span><span class=\"hljs-keyword\">if<\/span><\/span> (!customElements.get(<span><span class=\"hljs-symbol\">'any<\/span>-<span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span>'<\/span><\/span><span class=\"hljs-class\">)) <\/span>{\r\n  customElements.define(<span><span class=\"hljs-symbol\">'any<\/span>-<span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span>'<\/span><\/span><span class=\"hljs-class\">, <span class=\"hljs-title\">AnyClass<\/span>, <\/span>{\r\n    <span><span class=\"hljs-keyword\">extends<\/span><\/span>: <span><span class=\"hljs-symbol\">'b<\/span>r'<\/span>\r\n  });\r\n}\r\n\r\n<span><span class=\"hljs-comment green\">\/\/ \u662f\u5426\u652f\u6301 build-in custom element<\/span><\/span>\r\n<span>const<\/span> isSupportBuildIn = <span>document<\/span>.createElement(<span><span class=\"hljs-symbol\">'b<\/span>r'<\/span>, {\r\n  <span>is<\/span>: <span><span class=\"hljs-symbol\">'any<\/span>-<span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span>'<\/span><\/span>\r\n}).someMethod;<\/pre>\n<p>\u57fa\u4e8e\u7279\u6027\u5224\u65ad\u662f\u5f88\u5b89\u5168\u7684\uff0c\u5982\u679c\u6d4f\u89c8\u5668\u652f\u6301\u5185\u7f6e\u81ea\u5b9a\u4e49\u5143\u7d20\uff0c\u5219 <code>isSupportBuildIn<\/code> \u7684\u8fd4\u56de\u503c\u5c31\u662f true\uff0c\u5982\u679c\u6d4f\u89c8\u5668\u4e0d\u652f\u6301\uff0c\u5219\u4f1a\u662f undefined\u3002<\/p>\n<p>\u4f18\u5316\u540e\u7684JS\u4ee3\u7801\u6211\u5df2\u7ecf\u5f00\u6e90\u4e86\uff0c\u653e\u5728\u4e86gitee\u4e0a\uff0c\u8be6\u89c1\uff1a<a href=\"https:\/\/gitee.com\/zhangxinxu\/build-in-custom-element-polyfill\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/gitee.com\/zhangxinxu\/build-in-custom-element-polyfill<\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202104\/2021-04-23_112544.png\" width=\"422\" height=\"219\" alt=\"\u9879\u76ee\u76ee\u6807\u6e90\u7801\u622a\u56fe\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u6211\u7684\u8fd9\u4e2agitee\u8d26\u53f7\u3002<\/p>\n<h3>\u4e09\u3001\u5b8c\u7f8e\u8fd0\u884c\u4e0b\u7684\u95ee\u9898<\/h3>\n<p>\u8fd9\u6bb5Polyfill\u771f\u7684\u633a\u795e\u5947\u7684\uff0c\u539f\u6765\u7684Web Components\u4ee3\u7801\u65e0\u9700\u4efb\u4f55\u4fee\u6539\uff0c\u7ec4\u4ef6\u529f\u80fd\u5728Safari\u6d4f\u89c8\u5668\u4e0b\u5b8c\u7f8e\u652f\u6301\uff0c\u6240\u6709\u7ec4\u4ef6\u90fd\u8fd0\u884c\u826f\u597d\u3002<\/p>\n<p>\u7136\u540e\uff0c\u771f\u6b63\u5230\u4e1a\u52a1\u4ee3\u7801\u4e2d\uff0c\u8fdb\u884c\u7ec4\u4ef6\u4f20\u53c2\u5904\u7406\u7684\u65f6\u5019\uff0c\u53d1\u73b0\u95ee\u9898\u4e86\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5f15\u7528\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre><span>&lt;<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\"> <\/span><span><span class=\"hljs-tag\"><span class=\"hljs-attr\">src<\/span><\/span><\/span><span class=\"hljs-tag\">=<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-string\">\"safari-polyfill.js\"<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><span><span class=\"hljs-tag\">&lt;\/<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span>\r\n<span><span class=\"hljs-tag\">&lt;<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\"> <\/span><span><span class=\"hljs-tag\"><span class=\"hljs-attr\">type<\/span><\/span><\/span><span class=\"hljs-tag\">=<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-string\">\"module\"<\/span><\/span><\/span><span class=\"hljs-tag\"> <\/span><span><span class=\"hljs-tag\"><span class=\"hljs-attr\">src<\/span><\/span><\/span><span class=\"hljs-tag\">=<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-string\">\"my-components.js\"<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><span><span class=\"hljs-tag\">&lt;\/<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span>\r\n<span><span class=\"hljs-tag\">&lt;<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\"> <\/span><span><span class=\"hljs-tag\"><span class=\"hljs-attr\">type<\/span><\/span><\/span><span class=\"hljs-tag\">=<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-string\">\"module\"<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span>\r\nmyComponent.someMethod();\r\n<span><span class=\"hljs-tag\">&lt;\/<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><\/pre>\n<p>\u5728\u539f\u751f\u652f\u6301\u5185\u7f6e\u81ea\u5b9a\u4e49\u5143\u7d20\u7684\u6d4f\u89c8\u5668\u4e0b\uff0cmyComponent.someMethod() \u65b9\u6cd5\u662f\u53ef\u4ee5\u6b63\u5e38\u6267\u884c\u7684\u3002<\/p>\n<p>\u4f46\u662f\u5728Safari\u6d4f\u89c8\u5668\u4e0b\uff0c\u5c31\u4f1a\u62a5\u9519\uff0cundefined\u4e0d\u80fd\u4f5c\u4e3afunction\u51fd\u6570\u6267\u884c\u3002<\/p>\n<p>\u539f\u56e0\u5728\u4e8e\uff0csafari-polyfill.js \u7531\u4e8e\u5b9e\u73b0\u673a\u5236\u7684\u9650\u5236\uff0c\u4f1a\u8ba9\u81ea\u5b9a\u4e49\u5143\u7d20\u521d\u59cb\u5316\u7684\u65f6\u673a\u6bd4\u539f\u751f\u6d4f\u89c8\u5668\u66f4\u9760\u540e\u3002<\/p>\n<p>\u4e5f\u5c31\u662f\u5728Safari\u6d4f\u89c8\u5668\u4e0b\uff0c<code>myComponent.someMethod()<\/code> \u65b9\u6cd5\u6267\u884c\u7684\u65f6\u5019\uff0c<code>myComponent<\/code>\u8fd9\u4e2a\u5143\u7d20\u8fd8\u6ca1\u6709\u53d8\u6210\u5185\u7f6e\u81ea\u5b9a\u4e49\u5143\u7d20\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u6267\u884c\u4f1a\u51fa\u9519\u3002<\/p>\n<p>\u6211\u7684\u89e3\u51b3\u65b9\u6cd5\u662f\u8fd9\u6837\u7684\uff0c\u5728 connectedCallback \u751f\u547d\u5468\u671f\u51fd\u6570\u4e2d\u89e6\u53d1\u4e00\u4e2a\u81ea\u5b9a\u4e49\u7684 <code>'connected'<\/code> \u4e8b\u4ef6\uff0c\u8fd9\u6837\uff0c\u5c31\u53ef\u4ee5\u901a\u8fc7\u7ed1\u5b9a <code>'connected'<\/code> \u4e8b\u4ef6\u7684\u65b9\u5f0f\u4fdd\u8bc1\u4e1a\u52a1\u4ee3\u7801\u6267\u884c\u7684\u65f6\u5019\uff0c\u5143\u7d20\u5df2\u7ecf\u5b8c\u6210\u4e86\u7ec4\u4ef6\u5316\u3002<\/p>\n<p>\u4ee3\u7801\u793a\u610f\uff0c\u7ec4\u4ef6\u4e2d\u7684\u4ee3\u7801\u90e8\u5206\uff1a<\/p>\n<pre><span class=\"hljs-selector-tag\">connectedCallback<\/span> () {\r\n  <span><span class=\"hljs-selector-tag\">this<\/span><\/span><span class=\"hljs-selector-class\">.dispatchEvent<\/span>(<span>new<\/span> CustomEvent(<span><span class=\"hljs-string\">'connected'<\/span><\/span>), {\r\n    <span><span class=\"hljs-attribute\">detail<\/span><\/span>: {\r\n      <span><span class=\"hljs-attribute\">type<\/span><\/span>: <span><span class=\"hljs-string\">'my-components'<\/span><\/span>\r\n    }\r\n  });\r\n}<\/pre>\n<p>\u7136\u540e\uff0c\u4e1a\u52a1\u4ee3\u7801\u6539\u9020\u6210\u8fd9\u6837\u5c31\u53ef\u4ee5\u4e86\uff1a<\/p>\n<pre><span><span class=\"hljs-tag\">&lt;<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\"> <\/span><span><span class=\"hljs-tag\"><span class=\"hljs-attr\">src<\/span><\/span><\/span><span class=\"hljs-tag\">=<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-string\">\"safari-polyfill.js\"<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><span><span class=\"hljs-tag\">&lt;\/<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span>\r\n<span><span class=\"hljs-tag\">&lt;<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\"> <\/span><span><span class=\"hljs-tag\"><span class=\"hljs-attr\">type<\/span><\/span><\/span><span class=\"hljs-tag\">=<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-string\">\"module\"<\/span><\/span><\/span><span class=\"hljs-tag\"> <\/span><span><span class=\"hljs-tag\"><span class=\"hljs-attr\">src<\/span><\/span><\/span><span class=\"hljs-tag\">=<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-string\">\"my-components.js\"<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><span><span class=\"hljs-tag\">&lt;\/<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span>\r\n<span><span class=\"hljs-tag\">&lt;<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><span><span class=\"actionscript\"> \r\nmyComponent.addEventListener(<\/span><span><span class=\"actionscript\"><span class=\"hljs-string\">'connected'<\/span><\/span><\/span><span class=\"actionscript\">, <\/span><span><span><span class=\"actionscript\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span><\/span><\/span><\/span><span class=\"actionscript\"><span class=\"hljs-function\"> <\/span><\/span><span><span class=\"actionscript\"><span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span><\/span><\/span><\/span><span class=\"actionscript\"><span class=\"hljs-function\"> <\/span><\/span><\/span><span class=\"actionscript\">{\r\n    <\/span><span><span class=\"actionscript\"><span class=\"hljs-keyword\">this<\/span><\/span><\/span><span class=\"actionscript\">.someMethod();\r\n});\r\n<\/span><\/span><span><span class=\"hljs-tag\">&lt;\/<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><\/pre>\n<p>\u8fd9\u6837\u5c31\u53ef\u4ee5\u4fdd\u8bc1 someMethod() \u65b9\u6cd5\u6267\u884c\u7684\u65f6\u5019\uff0c\u7ec4\u4ef6\u4e00\u5b9a\u5df2\u7ecf\u5b8c\u6210\u4e86\u521d\u59cb\u5316\u3002<\/p>\n<h3>\u56db\u3001\u60f3\u4e0d\u5230\u8be5\u8bf4\u4ec0\u4e48\u7684\u5c0f\u7ed3<\/h3>\n<p>\u60f3\u4e0d\u5230\u8be5\u8bf4\u4e9b\u4ec0\u4e48\u3002<\/p>\n<p>\u795d\u5927\u5bb6\u4e94\u4e00\u5feb\u4e50\uff01<\/p>\n<p>\u4ec0\u4e48\uff0c\u4e94\u4e00\u8fd8\u6709\u4e00\u5468\u3002<\/p>\n<p>\u90a3\u5c31\u63d0\u524d\u795d\u5927\u5bb6\u4e94\u4e00\u5feb\u4e50\uff0c\u4eca\u5929\u4e94\u4e00\u51fa\u6e38\u4eba\u4f1a\u5f88\u591a\uff0c\u5927\u5bb6\u8bb0\u5f97\u6ce8\u610f\u5b89\u5168\u54e6\u3002<\/p>\n<p>\u6bd4\u5fc3\uff01<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/emtion\/emoji\/2764.svg\" width=\"20\" height=\"20\" align=\"absmiddle\"><\/p>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u6b22\u8fce\u5206\u4eab\uff0c\u52ff\u5168\u6587\u8f6c\u8f7d\uff0c\u5982\u679c\u5b9e\u5728\u559c\u6b22\uff0c\u53ef\u6536\u85cf\uff0c\u6c38\u4e0d\u8fc7\u671f\uff0c\u4e14\u4f1a\u53ca\u65f6\u66f4\u65b0\u77e5\u8bc6\u70b9\u53ca\u4fee\u6b63\u9519\u8bef\uff0c\u9605\u8bfb\u4f53\u9a8c\u4e5f\u66f4\u597d\u3002<br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=9929\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=9929<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202104\/custom-polyfill-cover.png\" width=\"160\" height=\"110\" alt=\"\u5360\u4f4d\u5c01\u9762\u56fe \u9888\u690e\u5e2e\u52a9\" class=\"alignright size-medium\" loading=\"lazy\" \/><\/p>\n<p>\u5927\u5bb6\u5982\u679c\u8fdb\u884c\u539f\u751f\u7684web components\u7ec4\u4ef6\u5f00\u53d1\uff0c\u53ef\u80fd\u4f1a\u9047\u5230build-in\u81ea\u5b9a\u4e49\u5143\u7d20\u5728Safari\u6d4f\u89c8\u5668\u4e0b\u4e0d\u652f\u6301\u7684\u573a\u666f\uff0c\u672c\u6587\u63d0\u4f9b\u4e86\u76f8\u5e94\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u4e3a\u60a8\u7684\u5b9e\u9645\u5f00\u53d1\u52a9\u822a\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[180],"tags":[1481,1650,708,1052,138,1222,1005,1223],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/9929"}],"collection":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/comments?post=9929"}],"version-history":[{"count":0,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/9929\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=9929"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=9929"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=9929"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}