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+---
+title: Node.isConnected
+slug: Web/API/Node/isConnected
+translation_of: Web/API/Node/isConnected
+---
+<p>{{APIRef("DOM")}}</p>
+
+<p>The <strong><code>isConnected</code></strong> read-only property of the {{domxref("Node")}} interface returns a boolean indicating whether the Node is connected (directly or indirectly) to the context object, for example the {{domxref("Document")}} object in the case of the normal DOM, or the {{domxref("ShadowRoot")}} in the case of a shadow DOM.</p>
+
+<h2 id="Синтаксис">Синтаксис</h2>
+
+<pre class="syntaxbox">var isItConnected = nodeObjectInstance.isConnected</pre>
+
+<h3 id="Return_value">Return value</h3>
+
+<p>A {{domxref("Boolean")}} that is <code>true</code> if the node is connected to its relevant context object, and <code>false</code> if not.</p>
+
+<h2 id="Пример">Пример</h2>
+
+<p>Стандартный DOM пример:</p>
+
+<pre class="brush: js"><code class="language-html">let test = document.createElement('p');
+console.log(test.isConnected); // returns false
+document.body.appendChild(test);</code>
+<code class="language-html">console.log(test.isConnected); // returns true</code>
+</pre>
+
+<p>A shadow DOM example:</p>
+
+<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>
+
+<p> </p>
+
+<h2 id="Спецификация">Спецификация</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">Specification</th>
+   <th scope="col">Status</th>
+   <th scope="col">Comment</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="Поддержка_Браузерами">Поддержка Браузерами</h2>
+
+<div>
+
+
+<p>{{Compat("api.Node.isConnected")}}</p>
+</div>