initial commit

1 files changed, 93 insertions, 0 deletions

diff --git a/files/zh-cn/web/api/node/isconnected/index.html b/files/zh-cn/web/api/node/isconnected/index.html
new file mode 100644
index 0000000000..f374672b45
--- /dev/null
+++ b/files/zh-cn/web/api/node/isconnected/index.html
@@ -0,0 +1,93 @@
+---
+title: Node.isConnected
+slug: Web/API/Node/isConnected
+tags:
+  - API
+  - DOM
+  - Node
+  - Property
+  - Reference
+  - 参考
+  - 属性
+translation_of: Web/API/Node/isConnected
+---
+<div>{{APIRef("DOM")}}</div>
+
+<p><strong><code>isConnected</code></strong> 是 {{domxref("Node")}} 的一个只读属性接口。无论节点是否与 DOM 树连接，该属性都会返回一个{{domxref("Boolean", "布尔值")}}。例如: {{domxref("Document")}} 对象与一般 DOM 树连接，{{domxref("ShadowRoot")}} 与 shadow DOM 连接。</p>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox">var <em>isItConnected</em> = <em>nodeObjectInstance</em>.isConnected</pre>
+
+<h3 id="返回值">返回值</h3>
+
+<p>返回 {{domxref("Boolean", "布尔值")}} — 如果该节点与 DOM 树连接则返回 <code>true</code>, 否则返回 <code>false</code>。</p>
+
+<h2 id="样例">样例</h2>
+
+<h3 id="标准_DOM_树">标准 DOM 树</h3>
+
+<pre class="brush: js">let test = document.createElement('p');
+console.log(test.isConnected); // Returns false
+document.body.appendChild(test);
+console.log(test.isConnected); // Returns true
+</pre>
+
+<h3 id="Shadow_DOM_树">Shadow DOM 树</h3>
+
+<pre class="brush: js">// Create a shadow root
+var shadow = this.attachShadow({mode: 'open'});
+
+// Create some CSS to apply to the shadow dom
+var style = document.createElement('style');
+console.log(style.isConnected); // returns false
+
+style.textContent = '.wrapper {' +
+                       'position: relative;' +
+                    '}' +
+
+                     '.info {' +
+                        'font-size: 0.8rem;' +
+                        'width: 200px;' +
+                        'display: inline-block;' +
+                        'border: 1px solid black;' +
+                        'padding: 10px;' +
+                        'background: white;' +
+                        'border-radius: 10px;' +
+                        'opacity: 0;' +
+                        'transition: 0.6s all;' +
+                        'position: absolute;' +
+                        'bottom: 20px;' +
+                        'left: 10px;' +
+                        'z-index: 3;' +
+                      '}' +
+
+// Attach the created style element to the shadow dom
+
+shadow.appendChild(style);
+console.log(style.isConnected); // Returns true</pre>
+
+<h2 id="规范">规范</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">规范</th>
+   <th scope="col">状态</th>
+   <th scope="col">备注</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM WHATWG','#dom-node-isconnected','isConnected')}}</td>
+   <td>{{Spec2('DOM WHATWG')}}</td>
+   <td>Initial definition.</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+<div>{{CompatibilityTable}}</div>
+
+
+
+<p>{{Compat("api.Node.isConnected")}}</p>