initial commit

1 files changed, 110 insertions, 0 deletions

diff --git a/files/zh-cn/web/api/mutationobserver/index.html b/files/zh-cn/web/api/mutationobserver/index.html
new file mode 100644
index 0000000000..21cd5d2ffc
--- /dev/null
+++ b/files/zh-cn/web/api/mutationobserver/index.html
@@ -0,0 +1,110 @@
+---
+title: MutationObserver
+slug: Web/API/MutationObserver
+tags:
+  - API
+  - Advanced
+  - DOM
+  - DOM Reference
+  - MutationObserver
+  - requestAnimationFrame
+  - resize
+translation_of: Web/API/MutationObserver
+---
+<p>{{APIRef("DOM WHATWG")}}</p>
+
+<p>{{domxref("MutationObserver")}}接口提供了监视对DOM树所做更改的能力。它被设计为旧的Mutation Events功能的替代品，该功能是DOM3 Events规范的一部分。</p>
+
+<h2 id="构造函数">构造函数</h2>
+
+<dl>
+ <dt>{{domxref("MutationObserver.MutationObserver", "MutationObserver()")}}</dt>
+ <dd>创建并返回一个新的 <code>MutationObserver</code> 它会在指定的DOM发生变化时被调用。</dd>
+</dl>
+
+<h2 id="Instance_methods" name="Instance_methods">方法</h2>
+
+<dl>
+ <dt>{{domxref("MutationObserver.disconnect", "disconnect()")}}</dt>
+ <dd><code><font face="Open Sans, arial, x-locale-body, sans-serif"><span style="background-color: #ffffff;">阻止 </span></font>MutationObserver</code> 实例继续接收的通知，直到再次调用其{{domxref("MutationObserver.observe", "observe()")}}方法，该观察者对象包含的回调函数都不会再被调用。</dd>
+ <dt>{{domxref("MutationObserver.observe", "observe()")}}</dt>
+ <dd>配置<code>MutationObserver</code>在DOM更改匹配给定选项时，通过其回调函数开始接收通知。</dd>
+ <dt>{{domxref("MutationObserver.takeRecords", "takeRecords()")}}</dt>
+ <dd>从MutationObserver的通知队列中删除所有待处理的通知，并将它们返回到{{domxref("MutationRecord")}}对象的新{{jsxref("Array")}}中。</dd>
+</dl>
+
+<h2 id="Mutation_Observer_customize_resize_event_listener_demo">Mutation Observer &amp; customize resize event listener &amp; demo</h2>
+
+<p><a href="https://codepen.io/webgeeker/full/YjrZgg/">https://codepen.io/webgeeker/full/YjrZgg/</a></p>
+
+<h2 id="示例">示例</h2>
+
+<p>以下示例改编自<a href="http://hacks.mozilla.org/2012/05/dom-mutationobserver-reacting-to-dom-changes-without-killing-browser-performance/">这篇博客</a>。</p>
+
+<pre class="brush: js notranslate">// 选择需要观察变动的节点
+const targetNode = document.getElementById('some-id');
+
+// 观察器的配置（需要观察什么变动）
+const config = { attributes: true, childList: true, subtree: true };
+
+// 当观察到变动时执行的回调函数
+const callback = function(mutationsList, observer) {
+    // Use traditional 'for loops' for IE 11
+    for(let mutation of mutationsList) {
+        if (mutation.type === 'childList') {
+            console.log('A child node has been added or removed.');
+        }
+        else if (mutation.type === 'attributes') {
+            console.log('The ' + mutation.attributeName + ' attribute was modified.');
+        }
+    }
+};
+
+// 创建一个观察器实例并传入回调函数
+const observer = new MutationObserver(callback);
+
+// 以上述配置开始观察目标节点
+observer.observe(targetNode, config);
+
+// 之后，可停止观察
+observer.disconnect();
+</pre>
+
+<ul>
+</ul>
+
+<h2 id="Specifications" name="Specifications">规范</h2>
+
+<table class="standard-table">
+ <thead>
+  <tr>
+   <th scope="col">规范</th>
+   <th scope="col">状态</th>
+   <th scope="col">注释</th>
+  </tr>
+ </thead>
+ <tbody>
+  <tr>
+   <td>{{SpecName('DOM WHATWG', '#mutationobserver', 'MutationObserver')}}</td>
+   <td>{{ Spec2('DOM WHATWG') }}</td>
+   <td></td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容">浏览器兼容</h2>
+
+
+
+<p>{{Compat("api.MutationObserver")}}</p>
+
+<h2 id="参见">参见</h2>
+
+<ul>
+ <li>{{domxref('PerformanceObserver')}}</li>
+ <li>{{domxref('ResizeObserver')}}</li>
+ <li>{{domxref('IntersectionObserver')}}</li>
+ <li><a href="http://updates.html5rocks.com/2012/02/Detect-DOM-changes-with-Mutation-Observers" rel="freelink">A brief overview</a></li>
+ <li><a href="http://hacks.mozilla.org/2012/05/dom-mutationobserver-reacting-to-dom-changes-without-killing-browser-performance/" rel="freelink">A more in-depth discussion</a></li>
+ <li><a href="http://www.youtube.com/watch?v=eRZ4pO0gVWw" rel="freelink">A screencast by Chromium developer Rafael Weinstein</a></li>
+</ul>