{"id":8925,"date":"2019-08-30T01:04:48","date_gmt":"2019-08-29T17:04:48","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=8925"},"modified":"2019-08-30T01:29:23","modified_gmt":"2019-08-29T17:29:23","slug":"js-dom-mutation-observer","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2019\/08\/js-dom-mutation-observer\/","title":{"rendered":"\u804a\u804aJS DOM\u53d8\u5316\u7684\u76d1\u542c\u68c0\u6d4b\u4e0e\u5e94\u7528"},"content":{"rendered":"<p>by <a href=\"https:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=8925\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=8925<\/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<br \/>\n<script>window.wxShareImgUrl = 'https:\/\/www.zhangxinxu.com\/study\/image\/share\/201908-talk.png';<\/script><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201908\/smoke-cover.png\" width=\"484\" height=\"300\" alt=\"DOM\u53d8\u5316\u4e0e\u68c0\u6d4b\" class=\"alignnone size-medium\" \/><\/p>\n<p>JS DOM\u53d8\u5316\u7684\u68c0\u6d4b\u4ece\u4e0a\u5f80\u4e0b\uff0c\u4ece\u4eca\u5f80\u53e4\u6709\u4e0b\u97623-5\u79cd\u65b9\u6cd5\u3002<\/p>\n<h3>\u4e00\u3001\u81ea\u5b9a\u4e49\u5143\u7d20\u58f0\u660e\u5468\u671f\u4e0eDOM\u53d8\u5316\u68c0\u6d4b<\/h3>\n<p>\u5f53\u6211\u4eec\u4f7f\u7528ES6\u7684\u57fa\u7840\u521b\u5efa\u81ea\u5b9a\u4e49\u5143\u7d20\uff08Custom Elements\uff09\u7684\u65f6\u5019\uff0c\u662f\u53ef\u4ee5\u4f7f\u7528\u5176\u5185\u7f6e\u7684\u751f\u547d\u5468\u671f\uff0c\u5bf9DOM\u53d8\u5316\u8fdb\u884c\u5b9e\u65f6\u66f4\u65b0\u7684\u3002<\/p>\n<p>\u6211\u4eec\u76f4\u63a5\u770b\u4f8b\u5b50\u6765\u8bf4\u660e\u5427\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u6211\u4eec\u5e0c\u671b\u81ea\u5b9a\u4e49\u4e00\u4e2a<code>&lt;x-ell&gt;<\/code>\u5143\u7d20\uff0c\u76f4\u63a5\u6839\u636e<code>rows<\/code>\u5c5e\u6027\u503c\u663e\u793a\u591a\u5c11\u884c\u6253\u70b9\u3002<\/p>\n<p>\u4f8b\u59822\u884c\u70b9\u70b9\u70b9\uff1a<\/p>\n<pre>&lt;x-ell rows=\"2\"&gt;<\/pre>\n<p>3\u884c\u70b9\u70b9\u70b9\uff1a<\/p>\n<pre>&lt;x-ell rows=\"3\"&gt;<\/pre>\n<p>\u6b64\u65f6\uff0c\u76f8\u5173JS\u5982\u4e0b\uff08\u751f\u547d\u5468\u671f\u76f8\u5173\u65b9\u6cd5\u7ea2\u8272\u9ad8\u4eae\uff09\uff1a<\/p>\n<pre>class HTMLEllElement extends HTMLElement {\r\n  <span style=\"color:green;\">\/\/ \u6307\u5b9a\u89c2\u5bdf\u7684\u5c5e\u6027\uff0c\u8fd9\u6837attributeChangedCallback\u624d\u4f1a\u8d77\u4f5c\u7528<\/span>\r\n  static get observedAttributes() { return ['rows']; }\r\n\r\n  constructor() {\r\n    super();\r\n  }\r\n\r\n  <span style=\"color:green;\">\/\/ \u4e0b\u97624\u4e2a\u65b9\u6cd5\u4e3a\u5e38\u7528\u751f\u547d\u5468\u671f<\/span>\r\n  <span style=\"color:#cd0000;\">connectedCallback()<\/span> {\r\n    console.log('\u81ea\u5b9a\u4e49\u5143\u7d20\u52a0\u5165\u9875\u9762');\r\n    <span style=\"color:green;\">\/\/ \u6267\u884c\u6e32\u67d3\u66f4\u65b0<\/span>\r\n    this._updateRendering();\r\n  }\r\n  <span style=\"color:#cd0000;\">disconnectedCallback()<\/span> {\r\n    <span style=\"color:green;\">\/\/ \u672c\u4f8b\u5b50\u8be5\u751f\u547d\u5468\u671f\u672a\u4f7f\u7528\uff0c\u5360\u4f4d\u793a\u610f<\/span>\r\n    console.log('\u81ea\u5b9a\u4e49\u5143\u7d20\u4ece\u9875\u9762\u79fb\u9664');\r\n  }\r\n  <span style=\"color:#cd0000;\">adoptedCallback()<\/span> {\r\n    <span style=\"color:green;\">\/\/ \u672c\u4f8b\u5b50\u8be5\u751f\u547d\u5468\u671f\u672a\u4f7f\u7528\uff0c\u5360\u4f4d\u793a\u610f<\/span>\r\n    console.log('\u81ea\u5b9a\u4e49\u5143\u7d20\u8f6c\u79fb\u5230\u65b0\u9875\u9762');\r\n  }\r\n  <span style=\"color:#cd0000;\">attributeChangedCallback(name, oldValue, newValue)<\/span> {\r\n    console.log('\u81ea\u5b9a\u4e49\u5143\u7d20\u5c5e\u6027\u53d1\u751f\u53d8\u5316');\r\n    this._rows = newValue;\r\n    <span style=\"color:green;\">\/\/ \u6267\u884c\u6e32\u67d3\u66f4\u65b0<\/span>\r\n    this._updateRendering();\r\n  }\r\n  <span style=\"color:green;\">\/\/ \u8bbe\u7f6e\u76f4\u63a5get\/set rows\u5c5e\u6027\u7684\u65b9\u6cd5<\/span>\r\n  get rows() {\r\n    return this._rows;\r\n  }\r\n  set rows(v) {\r\n    this.setAttribute('rows', v);\r\n  }\r\n\r\n  _updateRendering() {\r\n    <span style=\"color:green;\">\/\/ \u6839\u636e\u53d8\u5316\u7684\u5c5e\u6027\uff0c\u6539\u53d8\u7ec4\u4ef6\u7684UI\r\n    \/\/ ...<\/span>\r\n  }\r\n}\r\n<span style=\"color:green;\">\/\/ \u5b9a\u4e49x-ell\u6807\u7b7e\u5143\u7d20\u4e3a\u591a\u884c\u6253\u70b9\u5143\u7d20<\/span>\r\ncustomElements.define('x-ell', HTMLEllElement);<\/pre>\n<p>\u5176\u4e2d\u51e0\u4e2a\u751f\u547d\u5468\u671f\u65b9\u6cd5\u5206\u522b\u662f\uff1a<\/p>\n<dl>\n<dt><strong>connectedCallback<\/strong><\/dt>\n<dd>\u6bcf\u6b21\u81ea\u5b9a\u4e49\u5143\u7d20\u8fde\u63a5\u5230\u6587\u6863\u4e2d\u7684\u65f6\u5019\u4f1a\u89e6\u53d1\u3002\u6bcf\u6b21\u79fb\u52a8\u8282\u70b9\u65f6\u4e5f\u4f1a\u53d1\u751f\uff0c\u5e76\u4e14\u53ef\u80fd\u5728\u5143\u7d20\u7684\u5185\u5bb9\u5b8c\u5168\u89e3\u6790\u4e4b\u524d\u53d1\u751f\u3002<\/p>\n<p>\u6ce8\u610f\uff0c\u5143\u7d20\u5982\u679c\u548c\u6587\u6863\u5931\u53bb\u8fde\u63a5\u4e5f\u53ef\u80fd\u89e6\u53d1connectedCallback\uff0c\u6240\u4ee5\u6700\u597d\u5148\u4f7f\u7528Node.isConnected\uff08IE\u4e0d\u652f\u6301\uff09\u786e\u8ba4\u4e0b\u3002<\/dd>\n<dt><strong>disconnectedCallback<\/strong><\/dt>\n<dd>\u6bcf\u6b21\u81ea\u5b9a\u4e49\u5143\u7d20\u548c\u6587\u6863\u8fde\u63a5\u4e2d\u65ad\u7684\u65f6\u5019\u89e6\u53d1\u3002<\/dd>\n<dt><strong>adoptedCallback<\/strong><\/dt>\n<dd>\u6bcf\u6b21\u81ea\u5b9a\u4e49\u5143\u7d20\u79fb\u52a8\u5230\u65b0\u7684\u6587\u6863\u65f6\u5019\u89e6\u53d1\u3002<\/dd>\n<dt><strong>attributeChangedCallback<\/strong><\/dt>\n<dd>\u6bcf\u6b21\u81ea\u5b9a\u4e49\u5143\u7d20\u7684\u5c5e\u6027\u589e\u5220\u6539\u7684\u65f6\u5019\u4f1a\u89e6\u53d1\uff0c\u4e0d\u8fc7\u9700\u8981\u5148\u5728\u5728\u9759\u6001get observedAttributes\u65b9\u6cd5\u4e2d\u6307\u5b9a\u8981\u6ce8\u610f\u66f4\u6539\u7684\u5c5e\u6027\u3002\u4f8b\u5982\u4e0a\u9762\u7684\u6848\u4f8b\u5c31\u662f\u5728observedAttributes\u9759\u6001\u65b9\u6cd5\u4e2d\u8fd4\u56de\u4e86<code>['rows']<\/code>\uff0c\u4e8e\u662f\u5f53rows\u5c5e\u6027\u53d1\u751f\u53d8\u5316\u65f6\u5019\u4f1a\u89e6\u53d1<code>attributeChangedCallback<\/code>\u8fd9\u4e2a\u751f\u547d\u5468\u671f\u3002<\/dd>\n<\/dl>\n<p>\u773c\u89c1\u4e3a\u5b9e\uff0c\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/study\/201803\/custom-element-ellipsis-by-rows.html\" rel=\"noopener\" target=\"_blank\">HTML5\u81ea\u5b9a\u4e49\u5143\u7d20\u4e0erows\u5c5e\u6027\u76f4\u63a5\u63a7\u5236\u51e0\u884c\u6253\u70b9demo<\/a><\/p>\n<p>\u70b9\u51fb\u6309\u94ae\u4f1a\u6267\u884cJS\uff0c\u8ba9\u81ea\u5b9a\u4e49\u5143\u7d20\u7684<code>rows<\/code>\u5c5e\u6027\u503c\u4e3a<code>3<\/code>\uff1a<\/p>\n<pre>document.querySelector('x-ell').rows = '3';<\/pre>\n<p>\u7136\u540e\u53ef\u4ee5\u770b\u5230\u81ea\u52a8\u53d8\u6210\u4e863\u884c\u6253\u70b9\u6548\u679c\uff0c\u5982\u4e0bGif\u622a\u5c4f\u6240\u793a\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201803\/line-rows2-to-rows3-s.gif\" width=\"226\" height=\"114\" alt=\"gif\u622a\u5c4f 2\u884c\u6253\u70b9\u53d83\u884c\" class=\"alignnone\"><\/p>\n<h3>\u4e8c\u3001MutationObserver\u4e0eDOM\u53d8\u5316\u68c0\u6d4b<\/h3>\n<p>\u7136\u800cCustom Elements\u81ea\u5b9a\u4e49\u5143\u7d20IE\u5e76\u4e0d\u652f\u6301\uff0c\u5982\u679c\u6211\u4eec\u60f3\u8981\u517c\u5bb9\u5230IE11\u6d4f\u89c8\u5668\u7684\u8bdd\uff0c\u9700\u8981\u6c42\u52a9\u5176\u4ed6\u65b9\u6cd5\uff0c\u5219\u53ef\u4ee5\u8bd5\u4e00\u8bd5MutationObserver\u3002<\/p>\n<p>Mutation Observer\u662f\u5728DOM level 4\u4e2d\u5b9a\u4e49\u7684\u65b0API\uff0c\u53ef\u4ee5\u76d1\u542cDOM\u7684\u53d8\u5316\uff0c\u5355\u8bcdmutation\u662f\u201c\u7a81\u53d8\u201d\u7684\u610f\u601d\uff0cobserver\u662f\u201c\u89c2\u5bdf\u8005\u201d\u7684\u610f\u601d\uff0c\u8fde\u8d77\u6765\u5c31\u662f\u201c\u7a81\u53d8\u89c2\u5bdf\u8005\u201d\u7684\u610f\u601d\u3002<\/p>\n<p>\u8be5API\u6267\u884c\u903b\u8f91\u662f\u5148\u89c2\u5bdf\uff0c\u518d\u6267\u884c\uff0c\u662f\u4e00\u4e2a\u5f02\u6b65\u7684\u8fc7\u7a0b\u3002<\/p>\n<p>\u8fd9\u6837\u8bb2\u6ca1\u4ec0\u4e48\u611f\u89c9\uff0c\u6211\u4eec\u8fd8\u662f\u4ece\u4f8b\u5b50\u8bf4\u8d77\u5427\uff0c\u8fd8\u662f\u70b9\u70b9\u70b9\u7684\u4f8b\u5b50\uff0c\u4e0b\u9762\u770b\u770b\u6211\u662f\u5982\u4f55\u4f7f\u7528MutationObserver\u5b9e\u73b0IE11\u4e5f\u517c\u5bb9\u7684\u591a\u884c\u6253\u70b9\u7684\u6548\u679c\u7684\u3002<\/p>\n<hr>\n<p>\u4e0b\u9762IE11\u6d4f\u89c8\u5668\u4e0b\u6700\u7ec8\u5b9e\u73b0\u6548\u679c\uff0c\u9ed8\u8ba4HTML\u5982\u4e0b\uff1a<\/p>\n<pre>&lt;x-ell <span style=\"color:#cd0000;\">rows=\"2\"<\/span>&gt;\u5bf9\u4e8e\u73b0\u4ee3\u6d4f\u89c8\u5668...\u7ec4\u5408\u5982\u4e0b\u3002&lt;\/x-ell&gt;<\/pre>\n<p>\u7136\u540e\u6211\u4eec\u70b9\u51fb\u4e0b\u56fe\u6240\u793a\u7684\u6309\u94ae\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201908\/2019-08-29_221010.png\" width=\"359\" height=\"208\" alt=\"\u70b9\u51fb\u6309\u94ae\u8bbe\u7f6erows\u4e3a3\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u4f1a\u6267\u884c\u4e0b\u9762\u7684JavaScript\u4ee3\u7801\uff1a<\/p>\n<pre>document.querySelector('x-ell').rows = '3';<\/pre>\n<p>\u7136\u540e\u5c31\u4f1a\u9b54\u672f\u4e00\u822c\u81ea\u52a8\u53d8\u6210\u4e0b\u9762\u8fd9\u6837\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201908\/2019-08-29_221550.png\" width=\"283\" height=\"195\" alt=\"\u663e\u793a\u4e3a3\u884c\u6253\u70b9\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u6b64\u65f6\u6211\u4eec\u518d\u70b9\u51fb\u540e\u9762\u4e00\u4e2a\u6309\u94ae\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201908\/2019-08-29_221929.png\" width=\"343\" height=\"205\" alt=\"\u6587\u5b57\u5185\u5bb9\u53d8\u5c11\u6309\u94ae\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u53ef\u4ee5\u8ba9<code>&lt;x-ell&gt;<\/code>\u5143\u7d20\u5185\u7684\u6587\u672c\u53d8\u5f97\u5f88\u5c11\uff1a<\/p>\n<pre>document.querySelector('x-ell').innerText = '\u53ea\u6709\u4e00\u884c\u5566\uff01';<\/pre>\n<p>\u7ed3\u679c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201908\/2019-08-29_222105.png\" width=\"320\" height=\"171\" alt=\"\u53ea\u6709\u4e00\u884c\u6548\u679c\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/study\/201908\/mutation-observer-multiple-ellipsis-demo.php\" rel=\"noopener\" target=\"_blank\">MutationObserver\u4e0e\u591a\u884c\u6253\u70b9demo<\/a><\/p>\n<h4>\u591a\u884c\u81ea\u52a8\u6253\u70b9\u7684\u6838\u5fc3JS\u4ee3\u7801<\/h4>\n<p>\u6838\u5fc3JavaScript\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre><span style=\"color:green;\">\/**\r\n @description \u672c\u7740\u6f14\u793a\u76ee\u7684\uff0c\u6211\u4eec\u53ea\u8003\u8651x-ell\u5185\u90e8\u90fd\u662f\u7eaf\u6587\u672c\u7684\u60c5\u51b5\r\n @author zhangxinxu(.com) from https:\/\/www.zhangxinxu.com\/wordpress\/?p=8925\r\n @licence MIT\uff0c\u4fdd\u7559\u539f\u4f5c\u8005\u548c\u51fa\u5904\r\n *\/<\/span>\r\n[].slice.call(document.querySelectorAll('x-ell')).forEach(function (ell) {\r\n    ell.render = function () {\r\n        var rows = this.rows;\r\n        <span style=\"color:green;\">\/\/ \u57fa\u4e8erows\u6253\u70b9\u5b9e\u73b0\u2026\u2026\r\n        \/\/ \u8fd9\u91cc\u4ee3\u7801\u4e0d\u662f\u672c\u6587\u91cd\u70b9\uff0c\u7565\uff01\u6709\u5174\u8da3\u53ef\u4ee5\u53c2\u9605demo\u9875\u9762<\/span>\r\n    };\r\n    \r\n    <span style=\"color:green;\">\/\/ \u91cd\u65b0\u5b9a\u4e49rows\u5c5e\u6027<\/span>\r\n    Object.defineProperty(ell, 'rows', {\r\n        writeable: true,\r\n        enumerable: true,\r\n        get: function () {\r\n            return this.getAttribute('rows');    \r\n        },\r\n        set: function (rows) {\r\n            this.setAttribute('rows', rows);\r\n        }\r\n    });\r\n    \r\n    <span style=\"color:green;\">\/\/ \u6253\u70b9\u663e\u793a<\/span>\r\n    ell.render();\r\n    \r\n    <span style=\"color:green;\">\/\/ \u6784\u9020\u89c2\u5bdfell\u5143\u7d20\u7684\u5b9e\u4f8b<\/span>\r\n    var observer = new MutationObserver(function (mutationsList) {\r\n        <span style=\"color:green;\">\/\/ mutationsList\u53c2\u6570\u662f\u4e2aMutationRecord\u5bf9\u8c61\u6570\u7ec4\uff0c\u63cf\u8ff0\u4e86\u6bcf\u4e2a\u53d1\u751f\u7684\u53d8\u5316<\/span>\r\n        mutationsList.forEach(function (mutation) {\r\n            var target = mutation.target;\r\n            if (!target || !target.render) {\r\n                return;\r\n            }\r\n            <span style=\"color:green;\">\/\/ \u53d8\u5316\u7684\u7c7b\u578b<\/span>\r\n            switch(mutation.type) {\r\n              case 'characterData':\r\n                <span style=\"color:green;\">\/\/ \u6587\u672c\u5185\u5bb9\u53d8\u5316<\/span>\r\n                target.render();\r\n                break;\r\n              case 'attributes':\r\n                <span style=\"color:green;\">\/\/ rows\u5c5e\u6027\u503c\u53d1\u751f\u4e86\u53d8\u5316<\/span>\r\n                target.render();\r\n                break;\r\n            }\r\n        });\r\n    });\r\n    \r\n    <span style=\"color:green;\">\/\/ \u5f00\u59cb\u89c2\u5bdfell\u5143\u7d20\u5e76\u5236\u5b9a\u89c2\u5bdf\u5185\u5bb9<\/span>\r\n    observer.observe(ell, {\r\n        attributes: true,\r\n        subtree: true,\r\n        characterData: true,\r\n        attributeFilter: ['rows']    \r\n    });\r\n});<\/pre>\n<p>\u662f\u4e0d\u662f\u6709\u70b9\u770b\u4e0d\u61c2\uff0c\u4e0d\u77e5\u9053\u8bf4\u7684\u5565\u8ddf\u5565\uff0c\u7a0d\u5b89\u52ff\u8e81\uff0c\u6211\u4eec\u53bb\u7c97\u53d6\u7cbe\u4e00\u4e0b\uff0c\u5176\u5b9e\u6ca1\u4ec0\u4e48\u5185\u5bb9\u3002<\/p>\n<p>MutationObserver\u68c0\u6d4bDOM\u53d8\u5316\u7684\u5957\u8def\u90fd\u662f\u56fa\u5b9a\u7684\uff0c\u6240\u4ee5\u5b9e\u9645\u5f00\u53d1\u7684\u65f6\u5019\u5f80\u5f80\u90fd\u662fCtrl + C\u7136\u540eCtrl +V\u7136\u540e\u6539\u6539\u53c2\u6570\u503c\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n<p>\u5176\u5b9e\u5c31\u4e24\u90e8\u5206\u7ec4\u6210\uff0c\u5982\u4e0b\uff1a<\/p>\n<pre><span style=\"color:green;\">\/\/ part 1<\/span>\r\nvar observer = new MutationObserver(callback);\r\n<span style=\"color:green;\">\/\/ part 2<\/span>\r\nobserver.observe(node, options);<\/pre>\n<p>\u5b9a\u4e49\u4e00\u4e2a\u89c2\u5bdf\u5b9e\u4f8b\uff0c\u5b9e\u4f8b\u65b9\u6cd5\u4e2d\u6709\u4e2a<code>callback<\/code>\u56de\u8c03\u53c2\u6570\uff0c\u7136\u540e\u5f00\u59cb\u89c2\u5bdf\u6307\u5b9a<code>node<\/code>\u8282\u70b9\u7684\u53d8\u5316\uff0c\u89c2\u5bdf\u7684\u5185\u5bb9\u7531<code>options<\/code>\u53c2\u6570\u51b3\u5b9a\u3002<\/p>\n<p>\u7531\u4e8e<code>callback<\/code>\u662f\u6700\u540e\u6267\u884c\uff0c\u6240\u4ee5\u6211\u4eec\u5148\u4e86\u89e3<code>node, options<\/code>\u8fd9\u4e24\u4e2a\u53c2\u6570\uff0c\u518d\u6765\u770b\u770b<code>callback<\/code>\u4e2d\u7684\u53c2\u6570\u3002<\/p>\n<h4>API\u53c2\u6570\u7ec6\u8282\u6df1\u5165<\/h4>\n<dl>\n<dt><strong>observer.observe(node, options)<\/strong><\/dt>\n<\/dl>\n<p><strong>node<\/strong>\u6307\u89c2\u5bdf\u7684\u8282\u70b9\uff0c\u4f8b\u5982\u672c\u4f8b\u4e2d\u662f\u89c2\u5bdf<code>&lt;x-ell&gt;<\/code>\u5143\u7d20\u3002<br \/>\n<strong>options<\/strong>\u662f\u4e00\u4e2aMutationObserverInit\u5bf9\u8c61\uff0c\u5c5e\u6027\u503c\u3001\u7c7b\u578b\u4ee5\u53ca\u63cf\u8ff0\u53c2\u89c1\u4e0b\u8868\uff1a<\/p>\n<table border=\"0\" width=\"100%\" class=\"params_table\" cellspacing=\"1\">\n<thead>\n<tr>\n<th>\u5c5e\u6027<\/th>\n<th>\u7c7b\u578b<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>childList<\/td>\n<td>Boolean<\/td>\n<td>\u89c2\u5bdf\u5b50\u8282\u70b9\u7684\u53d8\u52a8<\/td>\n<\/tr>\n<tr>\n<td>attributes<\/td>\n<td>Boolean<\/td>\n<td>\u89c2\u5bdf\u5c5e\u6027\u7684\u53d8\u52a8<\/td>\n<\/tr>\n<tr>\n<td>characterData<\/td>\n<td>Boolean<\/td>\n<td>\u89c2\u5bdf\u8282\u70b9\u5185\u5bb9\u6216\u8282\u70b9\u6587\u672c\u7684\u53d8\u52a8<\/td>\n<\/tr>\n<tr>\n<td>subtree<\/td>\n<td>Boolean<\/td>\n<td>\u89c2\u5bdf\u6240\u6709\u540e\u4ee3\u8282\u70b9\u7684\u53d8\u52a8<\/td>\n<\/tr>\n<tr>\n<td>attributeOldValue<\/td>\n<td>Boolean<\/td>\n<td>\u5f53\u89c2\u5bdf\u5230attributes\u53d8\u52a8\u65f6\uff0c\u662f\u5426\u8bb0\u5f55\u53d8\u52a8\u524d\u7684\u5c5e\u6027\u503c<\/td>\n<\/tr>\n<tr>\n<td>characterDataOldValue<\/td>\n<td>Boolean<\/td>\n<td>\u5f53\u89c2\u5bdf\u5230characterData\u53d8\u52a8\u65f6\uff0c\u662f\u5426\u8bb0\u5f55\u53d8\u52a8\u524d\u7684\u5c5e\u6027\u503c<\/td>\n<\/tr>\n<tr>\n<td>attributeFilter<\/td>\n<td>Array<\/td>\n<td>\u6307\u5b9a\u9700\u8981\u89c2\u5bdf\u7684\u7279\u5b9a\u5c5e\u6027\uff08\u6bd4\u5982[&#8216;src&#8217;, &#8216;rows&#8217;]\uff09\uff0c\u4e0d\u5728\u6b64\u6570\u7ec4\u4e2d\u7684\u5c5e\u6027\u53d8\u5316\u65f6\u5c06\u88ab\u5ffd\u7565<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4e0d\u80fd\u5355\u72ec\u89c2\u5bdf<code>subtree<\/code>\u53d8\u52a8\uff0c\u5fc5\u987b\u540c\u65f6\u6307\u5b9a<code>childList<\/code>\u3001<code>attributes<\/code>\u548c<code>characterData<\/code>\u4e2d\u7684\u4e00\u79cd\u6216\u591a\u79cd\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u672c\u6587\u6253\u70b9\u7684\u4f8b\u5b50\u4e2d\uff0c<code>options<\/code>\u8bbe\u7f6e\u7684\u503c\u662f\uff1a<\/p>\n<pre>{\r\n    attributes: true,\r\n    subtree: true,\r\n    characterData: true,\r\n    attributeFilter: ['rows']    \r\n}<\/pre>\n<p>\u8868\u793a\u89c2\u5bdf\u6240\u6709\u5b50\u8282\u70b9\u7684\u5c5e\u6027\u53d8\u5316\u4ee5\u53ca\u5b50\u8282\u70b9\u5b57\u7b26\u6570\u636e\u7684\u53d8\u5316\uff0c\u5176\u4e2d\uff0c\u89c2\u5bdf\u7684\u5c5e\u6027\u53ea\u89c2\u5bdf<code>'rows'<\/code>\uff0c\u5176\u4ed6\u5c5e\u6027\u53d8\u5316\u5219\u5ffd\u7565\u3002<\/p>\n<dl>\n<dt><strong>new MutationObserver(callback)<\/strong><\/dt>\n<\/dl>\n<p><strong>callback<\/strong>\u662f\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u5176\u652f\u6301\u4e24\u4e2a\u53c2\u6570\uff08\u89c1\u4e0b\u9762\u4ee3\u7801\u7ea2\u8272\u9ad8\u4eae\uff09\uff1a<\/p>\n<pre>new MutationObserver(function (<span style=\"color:#cd0000;\">mutationsList<\/span>, <span style=\"color:#cd0000;\">mutationObserver<\/span>) {})<\/pre>\n<p>\u5176\u4e2d\uff0c<code>mutationsList<\/code>\u662f\u4e00\u4e2aMutationRecord\u5bf9\u8c61\u6570\u7ec4\uff0c<code>mutationObserver<\/code>\u5c31\u662f\u8fd4\u56de\u7684MutationObserver\u5b9e\u4f8b\u672c\u8eab\uff0c\u53ef\u4ee5\u7528\u6765\u6e05\u7a7aMutationRecord\u6216\u8005\u4e2d\u65ad\u89c2\u5bdf\uff0c\u4e0d\u8fc7\u5b9e\u9645\u5f00\u53d1\u7528\u5230\u7684\u4e0d\u591a\u3002<\/p>\n<h4>MutationRecord\u5bf9\u8c61<\/h4>\n<p><code>mutationsList<\/code>\u662f\u4e00\u4e2aMutationRecord\u5bf9\u8c61\u6570\u7ec4\uff0c\u5305\u542b\u6240\u6709\u89c2\u5bdf\u7684\u6570\u636e\u3002<\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528<code>forEach<\/code>\u904d\u5386<code>mutationsList<\/code>\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>mutationsList.forEach(function(mutation) {\r\n    <span style=\"color:green;\">\/\/ \u6b64\u65f6mutation\u5c31\u662f\u4e00\u4e2aMutationRecord\u5bf9\u8c61<\/span>\r\n}); <\/pre>\n<p>\u4e0a\u9762\u5faa\u73af\u4e2d\u7684<code>mutation<\/code>\u5c31\u662f\u4e00\u4e2aMutationRecord\u5bf9\u8c61\uff0c\u5176\u5305\u542b\u4e0b\u8868\u6240\u793a\u7684\u5c5e\u6027\u4ee5\u53ca\u63cf\u8ff0\u5185\u5bb9\uff1a<\/p>\n<table border=\"0\" width=\"100%\" class=\"params_table\" cellspacing=\"1\">\n<thead>\n<tr>\n<th>\u5c5e\u6027<\/th>\n<th>\u7c7b\u578b<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>type<\/td>\n<td>String<\/td>\n<td>\u6839\u636e\u53d8\u52a8\u7c7b\u578b\u7684\u4e0d\u540c\uff0c\u503c\u53ef\u80fd\u4e3aattributes\uff0ccharacterData\u6216\u8005childList<\/td>\n<\/tr>\n<tr>\n<td>target<\/td>\n<td>Node<\/td>\n<td>\u53d1\u751f\u53d8\u52a8\u7684DOM\u8282\u70b9\uff0c\u53ef\u80fd\u662f\u5220\u9664\u8282\u70b9\u7684\u7236\u5143\u7d20<\/td>\n<\/tr>\n<tr>\n<td>addedNodes<\/td>\n<td>NodeList<\/td>\n<td>\u88ab\u6dfb\u52a0\u7684\u8282\u70b9\uff0c\u5982\u679c\u6ca1\u6709\u5219\u662fnull<\/td>\n<\/tr>\n<tr>\n<td>removedNodes<\/td>\n<td>NodeList<\/td>\n<td>\u88ab\u5220\u9664\u7684\u8282\u70b9\uff0c\u5982\u679c\u6ca1\u6709\u5219\u662fnull<\/td>\n<\/tr>\n<tr>\n<td>previousSibling<\/td>\n<td>Node<\/td>\n<td>\u88ab\u6dfb\u52a0\u6216\u88ab\u5220\u9664\u7684\u8282\u70b9\u7684\u524d\u4e00\u4e2a\u5144\u5f1f\u8282\u70b9\uff0c\u5982\u679c\u6ca1\u6709\u5219\u662fnull<\/td>\n<\/tr>\n<tr>\n<td>nextSibling<\/td>\n<td>Node<\/td>\n<td>\u88ab\u6dfb\u52a0\u6216\u88ab\u5220\u9664\u7684\u8282\u70b9\u7684\u540e\u4e00\u4e2a\u5144\u5f1f\u8282\u70b9\uff0c\u5982\u679c\u6ca1\u6709\u5219\u662fnull<\/td>\n<\/tr>\n<tr>\n<td>attributeName<\/td>\n<td>String<\/td>\n<td>\u53d1\u751f\u53d8\u66f4\u7684\u5c5e\u6027\u7684\u540d\u79f0\uff0c\u5982\u679c\u6ca1\u6709\u5219\u662fnull<\/td>\n<\/tr>\n<tr>\n<td>attributeNamespace<\/td>\n<td>String<\/td>\n<td>\u53d1\u751f\u53d8\u66f4\u7684\u5c5e\u6027\u7684\u547d\u540d\u7a7a\u95f4\uff0c\u5728SVG\u5143\u7d20\u64cd\u4f5c\u65f6\u6bd4\u8f83\u6709\u7528\uff0c\u5982\u679c\u6ca1\u6709\u5219\u662fnull<\/td>\n<\/tr>\n<tr>\n<td>oldValue<\/td>\n<td>String<\/td>\n<td>\u5982\u679ctype\u4e3aattributes\uff0c\u5219\u8fd4\u56de\u8be5\u5c5e\u6027\u53d8\u5316\u4e4b\u524d\u7684\u5c5e\u6027\u503c\uff1b\u5982\u679ctype\u4e3acharacterData\uff0c\u5219\u8fd4\u56de\u8be5\u8282\u70b9\u53d8\u5316\u4e4b\u524d\u7684\u6587\u672c\u6570\u636e\uff1b\u5982\u679ctype\u4e3achildList\uff0c\u5219\u8fd4\u56denull<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5728\u672c\u6587\u7684\u6253\u70b9\u6848\u4f8b\u4e2d\uff0ccallback\u662f\u4e0b\u9762\u8fd9\u6837\u5904\u7406\u7684\uff08\u5b9e\u9645\u5f00\u53d1case\u8bed\u53e5\u53ef\u4ee5\u5408\u5728\u4e00\u8d77\uff0c\u8fd9\u91cc\u4e3a\u4e86\u6f14\u793a\u6e05\u6670\u5206\u5f00\u4e86\uff09\uff1a<\/p>\n<pre>new MutationObserver(function (mutationsList) {\r\n   <span style=\"color:green;\">\/\/ \u904d\u5386\u51fa\u6240\u6709\u7684MutationRecord\u5bf9\u8c61<\/span>\r\n   mutationsList.forEach(function (mutation) {\r\n        switch (mutation.type) {\r\n          case 'characterData':\r\n            <span style=\"color:green;\">\/\/ \u6587\u672c\u5185\u5bb9\u53d8\u5316\uff0c\u89e6\u53d1\u91cd\u6e32\u67d3...<\/span>\r\n            target.render();\r\n            break;\r\n          case 'attributes':\r\n            <span style=\"color:green;\">\/\/ rows\u5c5e\u6027\u503c\u53d1\u751f\u4e86\u53d8\u5316\uff0c\u89e6\u53d1\u91cd\u6e32\u67d3...<\/span>\r\n            render();\r\n            break;\r\n        }\r\n    });\r\n});<\/pre>\n<p>\u662f\u4e0d\u662f\u5c31\u5f88\u597d\u7406\u89e3\u4e86\u3002<\/p>\n<h4>MutationObserver\u5b9e\u4f8b\u7684\u5176\u4ed6\u65b9\u6cd5<\/h4>\n<pre>var observer = new MutationObserver(callback)<\/pre>\n<p>\u4e0a\u9762\u7684observer\u5c31\u662f\u4e00\u4e2a\u5b9e\u4f8b\u5bf9\u8c61\uff0c\u652f\u6301\u4e0b\u97623\u4e2a\u65b9\u6cd5\uff1a<\/p>\n<dl>\n<dt><strong>observer.observe(node, options)<\/strong><\/dt>\n<dd>\u4e0a\u9762\u5df2\u7ecf\u4ecb\u7ecd\u8fc7\u4e86\uff0c\u8fd9\u91cc\u7565\u3002<\/dd>\n<dt><strong>observer.takeRecords()<\/strong><\/dt>\n<dd>\u6ca1\u6709\u53c2\u6570\u3002\u8fd4\u56de\u89c2\u5bdf\u8005\u56de\u8c03\u51fd\u6570\u68c0\u6d4b\u5230\u4f46\u5c1a\u672a\u5904\u7406\u7684\u6240\u6709\u5339\u914d\u7684DOM\u66f4\u6539\u7684\u5217\u8868\uff0c\u4f7f\u53d8\u5316\u961f\u5217\u4e3a\u7a7a\u3002\u6700\u5e38\u89c1\u7684\u4f7f\u7528\u60c5\u51b5\u662f\u5728\u65ad\u5f00\u89c2\u5bdf\u8005\u8fde\u63a5\u4e4b\u524d\u7acb\u5373\u83b7\u53d6\u6240\u6709\u6302\u8d77\u7684\u53d8\u5316\u8bb0\u5f55\uff0c\u4ee5\u4fbf\u5728\u505c\u6b62\u89c2\u5bdf\u8005\u65f6\u5904\u7406\u4efb\u4f55\u6302\u8d77\u7684\u53d8\u5316\u3002<\/dd>\n<dt><strong>observer.disconnect()<\/strong><\/dt>\n<dd>\u6ca1\u6709\u53c2\u6570\u3002\u505c\u6b62\u5bf9DOM\u53d8\u5316\u7684\u89c2\u5bdf\uff0c\u76f4\u5230\u91cd\u65b0\u8c03\u7528<code>observe()<\/code>\u65b9\u6cd5\u3002<\/dd>\n<\/dl>\n<h4>MutationObserver\u6a21\u5f0f\u7684\u4f18\u70b9<\/h4>\n<p>\u76f8\u6bd4\u4e0b\u4e00\u8282\u8981\u4ecb\u7ecd\u7684Mutation events\uff0cMutationObserver\u6027\u80fd\u8981\u66f4\u9ad8\u3002Mutation Events\u662f\u540c\u6b65\u6267\u884c\u7684\uff0c\u5b83\u7684\u6bcf\u6b21\u8c03\u7528\uff0c\u90fd\u9700\u8981\u4ece\u4e8b\u4ef6\u961f\u5217\u4e2d\u53d6\u51fa\u4e8b\u4ef6\uff0c\u6267\u884c\uff0c\u7136\u540e\u4e8b\u4ef6\u961f\u5217\u4e2d\u79fb\u9664\uff0c\u671f\u95f4\u9700\u8981\u79fb\u52a8\u961f\u5217\u5143\u7d20\u3002\u5982\u679c\u4e8b\u4ef6\u89e6\u53d1\u7684\u8f83\u4e3a\u9891\u7e41\u7684\u8bdd\uff0c\u6bcf\u4e00\u6b21\u90fd\u9700\u8981\u6267\u884c\u4e0a\u9762\u7684\u8fd9\u4e9b\u6b65\u9aa4\uff0c\u90a3\u4e48\u6d4f\u89c8\u5668\u4f1a\u88ab\u62d6\u6162\u3002\u800cMutationObserver\u6240\u6709\u76d1\u542c\u64cd\u4f5c\u4ee5\u53ca\u76f8\u5e94\u5904\u7406\u90fd\u662f\u5728\u5176\u4ed6\u811a\u672c\u6267\u884c\u5b8c\u6210\u4e4b\u540e\u5f02\u6b65\u6267\u884c\u7684\uff0c\u5e76\u4e14\u662f\u6240\u4ee5\u53d8\u52a8\u89e6\u53d1\u4e4b\u540e\uff0c\u5c06\u53d8\u5f97\u8bb0\u5f55\u5728\u6570\u7ec4\u4e2d\uff0c\u7edf\u4e00\u8fdb\u884c\u56de\u8c03\u7684\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u5f53\u4f60\u4f7f\u7528observer\u76d1\u542c\u591a\u4e2aDOM\u53d8\u5316\u65f6\uff0c\u5e76\u4e14\u8fd9\u82e5\u5e72\u4e2aDOM\u53d1\u751f\u4e86\u53d8\u5316\uff0c\u90a3\u4e48observer\u4f1a\u5c06\u53d8\u5316\u8bb0\u5f55\u5230\u53d8\u5316\u6570\u7ec4\u4e2d\uff0c\u7b49\u5f85\u4e00\u8d77\u90fd\u7ed3\u675f\u4e86\uff0c\u7136\u540e\u4e00\u6b21\u6027\u7684\u4ece\u53d8\u5316\u6570\u7ec4\u4e2d\u6267\u884c\u5176\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u5982\u679c\u4f60\u7684\u6d4f\u89c8\u5668\u4e0d\u9700\u8981\u517c\u5bb9IE9\uff0cIE10\u6d4f\u89c8\u5668\uff0c\u63a8\u8350\u4f7f\u7528MutationObserver\u5b9e\u73b0DOM\u53d8\u5316\u7684\u68c0\u6d4b\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201908\/2019-08-29_233716.png\" width=\"569\" height=\"383\" alt=\"Mutation Observer\u517c\u5bb9\u6027\" class=\"alignnone size-medium\" \/><\/p>\n<p><span class=\"s\">\/\/zxx: Chrome\u6d4f\u89c8\u5668\u8fd8\u652f\u6301ResizeObserver\uff0c\u6d4f\u89c8\u5668\u7f29\u653e\u65f6\u5019\u7684\u89c2\u5bdf\u4e0e\u53d8\u5316\u68c0\u6d4b\u3002<\/span><\/p>\n<h3>\u4e09\u3001Mutation events\u4e0eDOM\u53d8\u5316\u68c0\u6d4b<\/h3>\n<p>\u5982\u679c\u4f60\u7684\u9879\u76ee\u9700\u8981\u517c\u5bb9IE9\uff0cIE10\u6d4f\u89c8\u5668\uff0c\u540c\u65f6\u60f3\u8981\u5b9e\u73b0\u5bf9DOM\u53d8\u5316\u7684\u68c0\u6d4b\uff0c\u5219\u53ef\u4ee5\u8bd5\u8bd5Mutation events\u3002<\/p>\n<p>Mutation events\u8bed\u6cd5\u4e0a\u76f8\u5bf9\u7b80\u5355\u6613\u61c2\u5f88\u591a\u3002<\/p>\n<p>\u4f60\u5c31\u8ba4\u4e3a\u662f\u548c<code>'click'<\/code>, <code>'mouseover'<\/code>\u4e00\u6837\u7684DOM\u4e8b\u4ef6\u7528\u5c31\u597d\u4e86\u3002<\/p>\n<p>\u652f\u6301\u7684\u4e8b\u4ef6\u5217\u8868\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li><code>DOMAttrModified<\/code> &nbsp; <span style=\"color:#cd0000;\">Chrome\/Safari\u4e0d\u652f\u6301<\/span><\/li>\n<li><code>DOMAttributeNameChanged<\/code><\/li>\n<li><code>DOMCharacterDataModified<\/code><\/li>\n<li><code>DOMElementNameChanged<\/code><\/li>\n<li><code>DOMNodeInserted<\/code><\/li>\n<li><code>DOMNodeInsertedIntoDocument<\/code> &nbsp; <span style=\"color:#cd0000;\">IE\u4e0d\u652f\u6301<\/span><\/li>\n<li><code>DOMNodeRemoved<\/code><\/li>\n<li><code>DOMNodeRemovedFromDocument<\/code>  &nbsp; <span style=\"color:#cd0000;\">IE\u4e0d\u652f\u6301<\/span><\/li>\n<li><code>DOMSubtreeModified<\/code><\/li>\n<\/ul>\n<p>\u5177\u4f53\u63cf\u8ff0\u89c1\u4e0b\u8868\uff08IE\u4e0d\u652f\u6301\u7684\u4e24\u4e2a\u6211\u4eec\u5ffd\u7565\uff0c\u8fd9\u4e2a\u5c31\u7b97\u6ca1\u517c\u5bb9\u6027\u95ee\u9898\u548c\u5f88\u5c11\u7528\u5230\uff09\uff1a<\/p>\n<table border=\"0\" width=\"100%\" class=\"params_table\" cellspacing=\"1\">\n<thead>\n<tr>\n<th>\u4e8b\u4ef6\u540d\u79f0<\/th>\n<th>\u4e8b\u4ef6\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>DOMAttrModified<\/td>\n<td>DOM\u5c5e\u6027\u53d1\u751f\u4fee\u6539<\/td>\n<\/tr>\n<tr>\n<td>DOMAttributeNameChanged<\/td>\n<td>DOM\u5c5e\u6027\u540d\u53d1\u751f\u53d8\u5316<\/td>\n<\/tr>\n<tr>\n<td>DOMCharacterDataModified<\/td>\n<td>DOM\u6587\u672c\u6570\u636e\u53d1\u751f\u4fee\u6539<\/td>\n<\/tr>\n<tr>\n<td>DOMElementNameChanged<\/td>\n<td>DOM\u5143\u7d20\u540d\u53d1\u751f\u53d8\u5316<\/td>\n<\/tr>\n<tr>\n<td>DOMNodeInserted<\/td>\n<td>DOM\u8282\u70b9\u63d2\u5165<\/td>\n<\/tr>\n<tr>\n<td>DOMNodeRemoved<\/td>\n<td>DOM\u8282\u70b9\u5220\u9664<\/td>\n<\/tr>\n<tr>\n<td>DOMSubtreeModified<\/td>\n<td>DOM\u5b50\u5143\u7d20\u4fee\u6539<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4f7f\u7528\u4f8b\u5b50\uff1a<\/p>\n<pre>element.addEventListener(\"DOMNodeInserted\", function (event) {\r\n    <span style=\"color:green;\">\/\/ event.target\u5c31\u662f\u4f9d\u6b21\u63d2\u5165\u7684DOM\u8282\u70b9<\/span>\r\n}, false);<\/pre>\n<p>\u5982\u679c\u6211\u4eec\u4f7f\u7528Mutation events\u5b9e\u73b0\u517c\u5bb9IE9\u6d4f\u89c8\u5668\u7684\u591a\u884c\u6253\u70b9\u6548\u679c\u8be5\u600e\u4e48\u5b9e\u73b0\u5462\uff1f<\/p>\n<p>\u4ee3\u7801\u53ef\u5c31\u7b80\u5355\u591a\u4e86\uff0c\u5c31\u4e0b\u9762\u8fd9\u51e0\u884c\u5c31\u597d\u4e86\uff1a<\/p>\n<pre><span style=\"color:green;\">\/**\r\n @description \u672c\u7740\u6f14\u793a\u76ee\u7684\uff0c\u6211\u4eec\u53ea\u8003\u8651x-ell\u5185\u90e8\u90fd\u662f\u7eaf\u6587\u672c\u7684\u60c5\u51b5\r\n @author zhangxinxu(.com) from https:\/\/www.zhangxinxu.com\/wordpress\/?p=8925\r\n @licence MIT\uff0c\u4fdd\u7559\u539f\u4f5c\u8005\u548c\u51fa\u5904\r\n *\/<\/span>\r\n[].slice.call(document.querySelectorAll('x-ell')).forEach(function (ell) {\r\n    ell.render = function () {\r\n        var rows = this.rows;\r\n        <span style=\"color:green;\">\/\/ \u57fa\u4e8erows\u6253\u70b9\u5b9e\u73b0\u2026\u2026\r\n        \/\/ \u8fd9\u91cc\u4ee3\u7801\u4e0d\u662f\u672c\u6587\u91cd\u70b9\uff0c\u7565\uff01\u6709\u5174\u8da3\u53ef\u4ee5\u53c2\u9605demo\u9875\u9762<\/span>\r\n    };\r\n    \r\n    <span style=\"color:green;\">\/\/ \u91cd\u65b0\u5b9a\u4e49rows\u5c5e\u6027<\/span>\r\n    Object.defineProperty(ell, 'rows', { <span style=\"color:green;\">\/* ... *\/<\/span> });\r\n    \r\n    <span style=\"color:green;\">\/\/ \u6253\u70b9\u663e\u793a<\/span>\r\n    ell.render();\r\n    \r\n    <span style=\"color:green;\">\/\/ \u5f00\u59cb\u89c2\u5bdfell\u5143\u7d20<\/span>\r\n    ell.addEventListener('<span style=\"color:#cd0000;\">DOMCharacterDataModified<\/span>', function () {\r\n        this.render();    \r\n    });\r\n    ell.addEventListener('<span style=\"color:#cd0000;\">DOMAttrModified<\/span>', function () {\r\n        this.render();    \r\n    });\r\n});<\/pre>\n<p>\u4e0a\u9762\u4ee3\u7801\u5927\u5bb6\u4e00\u770b\u5c31\u77e5\u9053\u600e\u4e48\u56de\u4e8b\u4e86\uff0c\u7ed1\u5b9aDOMCharacterDataModified\u4e8b\u4ef6\uff0c\u610f\u5473\u7740\u5982\u679c<code>&lt;x-ell&gt;<\/code>\u5143\u7d20\u5185\u90e8\u6587\u5b57\u53d8\u5316\u4e86\uff0c\u6267\u884c\u4e00\u6b21\u91cd\u7ed8\uff1b\u7ed1\u5b9a\u4e86DOMAttrModified\u4e8b\u4ef6\uff0c\u610f\u5473\u7740\u5c5e\u6027\u53d1\u751f\u53d8\u5316\u7684\u65f6\u5019\u91cd\u7ed8\u3002<\/p>\n<p>\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/study\/201908\/mutation-events-multiple-ellipsis-demo.php\" rel=\"noopener\" target=\"_blank\">Mutation Events\u4e0e\u591a\u884c\u6253\u70b9demo<\/a><\/p>\n<p>\u4e0b\u9762\u8fd9\u4e2aGIF\u662fIE9\u6d4f\u89c8\u5668\u4e0b\u7684\u5f55\u5c4f\u6548\u679c\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201908\/ie9-ellipsis.gif\" width=\"293\" height=\"203\" alt=\"IE9\u4e0b\u591a\u884c\u6253\u70b9\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<h4>Mutation events\u66f4\u771f\u5b9e\u7684\u5e94\u7528<\/h4>\n<p>\u5b9e\u9645\u4e0a\uff0cMutation events\u66f4\u591a\u7684\u662f\u7ed1\u5b9a\u5728document.body\u8fd9\u79cd\u7ea7\u522b\u7684\u5bb9\u5668\u5143\u7d20\u4e0a\uff0c\u8981\u6765\u68c0\u6d4b\u4e0b\u9762\u5b50\u5143\u7d20\u7684\u66f4\u65b0\u6216\u5220\u9664\uff0c\u800c\u4e0d\u662f\u50cf\u4e0a\u9762\u8fd9\u4e2a\u4f8b\u5b50\u8fd9\u6837\uff0c\u76f4\u63a5\u7ed1\u5b9a\u5728\u76ee\u6807\u5143\u7d20\u4e0a\u3002<\/p>\n<p>\u4f8b\u5982\u60f3\u8981\u77e5\u9053\u9875\u9762\u4e0a\u662f\u4e0d\u662f\u65b0\u589e\u4e86\u4e00\u4e2atextarea\u5143\u7d20\uff0c\u4f1a\u6709\u7c7b\u4f3c\u4e0b\u9762\u4ee3\u7801\uff1a<\/p>\n<pre>document.addEventListener('DOMNodeInserted', function(event) {\r\n    var target = event.target;\r\n\r\n    if (target.nodeName.toLowerCase() === 'textarea') {\r\n        <span style=\"color:green;\">\/\/ \u5982\u679c\u662ftextarea\u5143\u7d20...<\/span>\r\n    }\r\n});<\/pre>\n<p>\u770b\u4e0a\u53bb\u5e73\u6de1\u65e0\u5947\uff0c\u4f46\u5b9e\u9645\u4e0a\u5374\u662f\u4e2a\u5f88\u70e7\u7684\u4e1c\u897f\uff0c\u4f8b\u5982\u9875\u9762\u662fappend\u4e00\u4e2a\u5de8\u5927\u7684\u8868\u5355\uff0c\u5176DOM\u8282\u70b9\u5143\u7d20\u6709500\u4e2a\u4e4b\u591a\uff0c\u90a3&#8217;DOMNodeInserted&#8217;\u5bf9\u5e94\u7684\u4e8b\u4ef6\u4e5f\u4f1a\u6267\u884c500\u6b21\uff0c\u6bcf\u6b21\u6267\u884c<code>event.target<\/code>\u5c31\u662f\u4e00\u4e2a\u8282\u70b9\u5143\u7d20\uff0c\u5173\u952e\u662f\u6bcf\u6b21\u6267\u884c\u90fd\u662f\u540c\u6b65\u7684\uff0c\u4e00\u65e6\u6211\u4eec\u7684DOM\u5904\u7406\u903b\u8f91\u6bd4\u8f83\u590d\u6742\uff0c\u90a3\u6574\u4e2a\u9875\u9762\u7684\u6027\u80fd\u5c31\u4f1a\u6709\u5de8\u5927\u7684\u9690\u60a3\u3002<\/p>\n<p>\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48Mutation events\u89c4\u8303\u540e\u6765\u88ab\u820d\u5f03\u7684\u539f\u56e0\uff0c\u867d\u7136\u5176API\u7528\u8d77\u6765\u771f\u7684\u662f\u987a\u624b\u3002<\/p>\n<h4>\u548cMutationObserver\u7ec6\u8282\u7684\u5dee\u5f02<\/h4>\n<p>\u62ffDOMNodeRemoved\u5220\u9664\u5177\u4f53\uff0c\u5728Mutation events\u4e2d\uff0c\u5f53\u89c2\u5bdf\u5230\u5220\u9664\u884c\u4e3a\u53d1\u751f\u7684\u65f6\u5019\uff0cDOM\u5143\u7d20\u8fd8\u5728\u6587\u6863\u6d41\u4e2d\uff0c\u4f46\u662f\u5728Mutation Observer\u4e2d\uff0cDOM\u5143\u7d20\u5df2\u7ecf\u4e0d\u5728\u6587\u6863\u6d41\u4e2d\u4e86\uff0c\u8fd9\u4e2aDOM\u5143\u7d20\u5bf9\u8c61\u672c\u8eab\u8fd8\u5728\uff0c\u4f46\u662f\uff0c\u7c7b\u4f3c<code>dom.parentElement<\/code>\u8fd9\u6837\u7684\u6267\u884c\u5c31\u4f1a\u5931\u8d25\uff0c\u56e0\u4e3a\u4e0d\u5728\u6587\u6863\u6d41\u4e2d\uff0c\u65e0\u6cd5\u8fdb\u884cDOM\u67e5\u8be2\uff0c\u4f46\u662fMutation events\u4e2d\u5374\u53ef\u4ee5\u3002<\/p>\n<h4>Chrome\/Safari\u4e0d\u652f\u6301DOMAttrModified\u7684\u5904\u7406<\/h4>\n<p>Chrome\/Safari\u4e0d\u652f\u6301DOMAttrModified\uff0c\u5982\u4e0b\u517c\u5bb9\u6027\u56fe\u6240\u793a\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201908\/2019-08-30_004538.png\" width=\"608\" height=\"403\" alt=\"Mutation events\u517c\u5bb9\u6027\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u4f46\u662f\u5728\u8fd9\u4e9b\u6d4f\u89c8\u5668\u4e0b\uff0cdemo\u9875\u9762\u529f\u80fd\u4e5f\u5b8c\u5168\u6b63\u5e38\uff0c\u8fd9\u662f\u600e\u4e48\u56de\u4e8b\u5462\uff1f<\/p>\n<p>\u8fd9\u5c31\u5f15\u51fa\u6700\u540e\u4e00\u4e2aDOM\u53d8\u5316\u68c0\u6d4b\u65b9\u6cd5\uff0cObject.defineProperty\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5bf9\u81ea\u5b9a\u4e49\u5c5e\u6027\u7684\u53d8\u5316\u8fdb\u884c\u68c0\u6d4b\u3002<\/p>\n<h3>\u56db\u3001Object.defineProperty\u4e0e\u5c5e\u6027\u53d8\u5316\u68c0\u6d4b<\/h3>\n<p>\u5982\u679c\u6211\u4eec\u53ea\u60f3\u68c0\u6d4b\u67d0\u51e0\u4e2aDOM\u5c5e\u6027\u7684\u53d8\u5316\uff0c\u800c\u4e0d\u9700\u5173\u5fc3DOM\u8282\u70b9\u7684\u589e\u5220\u6539\uff0c\u5219Object.defineProperty\u53ef\u4ee5\u8bf4\u662f\u975e\u5e38\u597d\u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u4f8b\u5982\u8fd9\u91cc\uff0c\u6211\u4eec\u60f3\u8981\u5b9e\u73b0<code>'rows'<\/code>\u5c5e\u6027\u503c\u53d1\u73b0\u53d8\u5316\u7684\u65f6\u5019\u81ea\u52a8\u91cd\u65b0\u786e\u8ba4\uff0c\u5219\u53ef\u4ee5\u50cf\u4e0b\u9762\u8fd9\u6837\u5904\u7406\uff1a<\/p>\n<pre><span style=\"color:green;\">\/\/ \u91cd\u65b0\u5b9a\u4e49rows\u5c5e\u6027<\/span>\r\nObject.defineProperty(ell, 'rows', {\r\n    writeable: true,\r\n    enumerable: true,\r\n    get: function () {\r\n        return this.getAttribute('rows');    \r\n    },\r\n    set: function (rows) {\r\n        this.setAttribute('rows', rows);\r\n        <span style=\"color:green;\">\/\/ rows\u53d8\u5316\u4e86\uff0c\u91cd\u6e32\u67d3<\/span>\r\n        <span style=\"color:#cd0000;\">this.render(); <\/span>\r\n    }\r\n});<\/pre>\n<p>\u6211\u4eec\u91cd\u65b0\u7ed9<code>ell<\/code>\u8fd9\u4e2aDOM\u5bf9\u8c61\u81ea\u5b9a\u4e49\u4e00\u4e2a<code>'rows'<\/code>\u5c5e\u6027\u3002\u5176\u4e2d\uff0c\u5f53\u6211\u4eec<code>ell.rows<\/code>\u53d6\u503c\u7684\u65f6\u5019\u4f1a\u6267\u884cget\u65b9\u6cd5\uff0c\u5f53<code>ell.rows = 'xxx'<\/code>\u8d4b\u503c\u7684\u65f6\u5019\u4f1a\u6267\u884cset\u65b9\u6cd5\u3002<\/p>\n<p>\u4e8e\u662f\uff0c\u6211\u4eec\u53ea\u8981\u5728set\u65b9\u6cd5\u4e2d\u57cb\u4e00\u4e2a\u6267\u884c\u91cd\u6e32\u67d3\u7684\u65b9\u6cd5\uff0c\u90a3\u4e48\u6bcf\u6b21rows\u5c5e\u6027\u8d4b\u503c\u7684\u65f6\u5019\u90fd\u4f1a\u81ea\u52a8\u89e6\u53d1\u91cd\u6e32\u67d3\uff0c\u5b9e\u73b0\u4e86DOM\u5143\u7d20\u5c5e\u6027\u7684\u68c0\u6d4b\u529f\u80fd\u3002<\/p>\n<p>Object.defineProperty\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>Object.defineProperty(obj, prop, descriptor)<\/pre>\n<p>\u81f3\u4e8e\u5404\u4e2a\u53c2\u6570\u662f\u4ec0\u4e48\u542b\u4e49\uff0c\u6211\u8fd9\u91cc\u4e0d\u5c55\u5f00\u554a\uff0c\u56e0\u4e3a\u5185\u5bb9\u6bd4\u8f83\u591a\uff0c\u7f51\u4e0a\u6587\u7ae0\u4e5f\u5f88\u591a\uff0c\u4e0d\u4e86\u89e3\u7684\u4eba\u53ef\u4ee5\u770b\u770b<a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/JavaScript\/Reference\/Global_Objects\/Object\/defineProperty\" rel=\"noopener nofollow\" target=\"_blank\">MDN\u6587\u6863<\/a>\u4e0a\u7684\u4ecb\u7ecd\u3002<\/p>\n<h3>\u4e94\u3001CSS3 animation\u52a8\u753b\u4e0e\u68c0\u6d4b<\/h3>\n<p>\u8fd9\u4e2a\u65b9\u6cd5\u4e3b\u8981\u501f\u52a9<code>animationend<\/code>\u56de\u8c03\u5224\u65adDOM\u5143\u7d20\u7684\u53d8\u5316\uff0c\u6b64\u65b9\u6cd5\u53ef\u4ee5\u8bc6\u522b\u6dfb\u52a0\uff0c\u5c5e\u6027\u53d8\u5316\uff0c\u751a\u81f3DOM\u5220\u9664\u90fd\u53ef\u4ee5\uff08\u914d\u5408\u5408\u9002\u7684\u9009\u62e9\u5668\u5373\u53ef\uff09\u3002<\/p>\n<p><a href=\"https:\/\/juejin.im\/post\/5b18e6606fb9a01e5c45434c\" rel=\"noopener nofollow\" target=\"_blank\">\u8fd9\u7bc7\u6587\u7ae0<\/a>\u6700\u540e\u6709\u4ecb\u7ecd\uff0c\u5927\u5bb6\u53ef\u4ee5\u5148\u4e86\u89e3\u4e86\u89e3\uff0c\u91cc\u9762\u65b9\u6848\u5e76\u4e0d\u662f\u5f88\u5b8c\u7f8e\uff0c\u4ee5\u540e\u6709\u673a\u4f1a\u6211\u518d\u5c55\u5f00\u4ecb\u7ecd\u3002<\/p>\n<p>\u7136\u540e\u501f\u52a9CSS3\u52a8\u753b\u68c0\u6d4bDOM\u53d8\u5316\u8fd8\u6709\u4e13\u95e8\u7684Github\u9879\u76ee\uff0c\u5927\u5bb6\u53ef\u4ee5\u4e86\u89e3\u4e0b\uff1a<a href=\"https:\/\/github.com\/muicss\/sentineljs\" rel=\"noopener nofollow\" target=\"_blank\">https:\/\/github.com\/muicss\/sentineljs<\/a><\/p>\n<p>\u6b64\u65b9\u6cd5\u975e\u672c\u6587\u91cd\u70b9\u5185\u5bb9\uff0c\u4e0d\u5c55\u5f00\u3002<\/p>\n<h3>\u516d\u3001\u788e\u788e\u5ff5\u548c\u53c2\u8003\u6587\u6863<\/h3>\n<p>\u5468\u4e00\u665a\u4e0a\u5230\u5468\u56db\u665a\u4e0a\uff0c\u7206\u809d\u4e864\u4e2a\u665a\u4e0a\u5b8c\u6210\uff0c\u5e73\u574722:00~1:30\uff0c\u4e2d\u95f4\u770b\u52a8\u6f2b\u5237\u5fae\u535a\u7528\u6389\u4e00\u4e2a\u5c0f\u65f6\uff0c\u6240\u4ee5\u6bcf\u5929\u5927\u6982\u82b1\u8d39\u4e24\u4e2a\u534a\u5c0f\u65f6\uff0c\u603b\u5171\u6587\u7ae0\u82b1\u8d3910\u4e2a\u5c0f\u65f6\u65f6\u95f4\uff0c\u7d2f\u79ef\u5c06\u8fd11\u4e07\u5b57\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201908\/2019-08-30_012632.png\" width=\"166\" height=\"92\" alt=\"\u5b57\u6570\u7edf\u8ba1\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u4e0d\u51fa\u610f\u5916\uff0c\u4e0b\u4e2a\u6708\u6211\u7684\u7b2c\u4e8c\u672c\u4e66\u7c4d\u300aCSS\u9009\u62e9\u5668\u4e16\u754c\u300b\u5c31\u8981\u51fa\u7248\u4e86\uff0c\u5199\u4e66\u7684\u65f6\u95f4\u54ea\u91cc\u6765\u7684\uff0c\u5c31\u662f\u6bcf\u5929\u4e0b\u73ed\u56de\u5bb6\u575a\u6301\u5199\u4e00\u70b9\uff0c\u5c31\u7b97\u5e73\u5747\u6bcf\u5929\u5c31\u4e00\u4e2a\u5c0f\u65f6\uff0c\u4e0d\u65ad\u7d2f\u79ef\uff0c\u4e0d\u65ad\u91cd\u590d\uff0c\u7ed3\u679c\u534a\u5e74\u4e0b\u6765\u4e00\u672c\u4e66\u5c31\u5199\u597d\u4e86\uff0c\u5c31\u662f\u8fd9\u4e48\u7b80\u5355\u3002<\/p>\n<p>\u521b\u4f5c\u5c31\u662f\u8fd9\u4e48\u7b80\u5355\uff0c\u4e0d\u9700\u8981\u7a81\u7136\u67d0\u4e00\u5929\u9e21\u8840\uff0c\u53ea\u8981\u6bcf\u5929\u90fd\u6709\u4e00\u70b9\u4ea7\u51fa\uff0c\u6301\u7eed\u4e0d\u95f4\u65ad\uff0c\u4e45\u800c\u4e45\u4e4b\uff0c\u5c31\u6709\u4e0d\u9519\u7684\u6210\u679c\u51fa\u73b0\u4e86\u3002\u8d77\u70b9\u4e0a\u5199\u5c0f\u8bf4\u7684\u90a3\u4e9b\u5927\u795e\u4e5f\u662f\u5982\u6b64\uff0c\u5076\u5c14\u66b4\u8d70\u4e00\u5929\u51991\u4e07\u5b57\u6ca1\u9524\u5b50\u7528\uff0c\u6bcf\u5929\u4e0d\u95f4\u65ad3000\u5b57\u624d\u662f\u738b\u8005\u3002<\/p>\n<p>\u9152\u9999\u4e5f\u6015\u5df7\u5b50\u6df1\uff0c\u5982\u679c\u4f60\u89c9\u5f97\u8fd9\u7bc7\u6587\u7ae0\u4e0d\u9519\uff0c\u6b22\u8fce\u5206\u4eab\u5230\u7fa4\u554a\uff0c\u670b\u53cb\u5708\uff0c\u770b\u5f97\u4eba\u591a\u4e86\uff0c\u6211\u66f4\u65b0\u4e5f\u66f4\u6709\u52a8\u529b\u4e86\u3002<\/p>\n<p><strong>\u53c2\u8003\u6587\u6863<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/MutationObserver\" rel=\"noopener nofollow\" target=\"_blank\">MDN MutationObserver<\/a><\/li>\n<li><a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/MutationEvent\" rel=\"noopener nofollow\" target=\"_blank\">MDN MutationEvent<\/a><\/li>\n<li><a href=\"https:\/\/juejin.im\/entry\/57de3fc30bd1d00057f2ea33\" rel=\"noopener nofollow\" target=\"_blank\">\u6df1\u5165 MutationObserver<\/a><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/emtion\/emoji\/1f618.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\u5185\u5bb9\u4f60\u5b9e\u5728\u559c\u6b22\uff0c\u53ef\u4ee5\u52a0\u5165\u6536\u85cf\u5939\uff0c\u6c38\u4e0d\u8fc7\u671f\uff0c\u800c\u4e14\u8fd8\u4f1a\u53ca\u65f6\u66f4\u65b0\u77e5\u8bc6\u70b9\u4ee5\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=8925\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=8925<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201908\/smoke-cover.png\" width=\"161\" height=\"100\" alt=\"DOM\u53d8\u5316\u4e0e\u68c0\u6d4b\" class=\"alignright size-medium\" loading=\"lazy\" \/><\/p>\n<p>\u5b9e\u9645\u5f00\u53d1\u7684\u65f6\u5019\uff0c\u6211\u4eec\u9700\u8981\u77e5\u9053DOM\u5143\u7d20\u662f\u5426\u53d1\u751f\u4e86\u53d8\u5316\uff0c\u6216\u5c5e\u6027\u53d8\u5316\uff0c\u6216DOM\u8282\u70b9\u7684\u65b0\u589e\u6216\u5220\u9664\uff0c\u4eceIE9\u6d4f\u89c8\u5668\u5f00\u59cb\uff0c\u6d4f\u89c8\u5668\u542f\u7528\u4e86\u591a\u79cd\u65b9\u6cd5\uff0c\u53ef\u4ee5\u76d1\u542cDOM\u6811\u7684\u53d8\u5316\uff0c\u672c\u6587\u5c31\u5c06\u7ed3\u5408\u5b9e\u4f8b\u8be6\u7ec6\u804a\u804a\u5176\u4e2d\u7684\u5404\u79cd\u65b9\u6cd5\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1284],"tags":[215,1482,195,1481,1474,182,1476,1475,142,1224,1478,1480,1479,1237,1223],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/8925"}],"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=8925"}],"version-history":[{"count":0,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/8925\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=8925"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=8925"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=8925"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}