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---
title: MediaStream.id
slug: Web/API/MediaStream/id
translation_of: Web/API/MediaStream/id
---
<p>{{APIRef("WebRTC")}}</p>
<p><code><strong>MediaStream.id</strong></code>は読み取り専用プロパティであり、このオブジェクトの固有識別子(GUID)である36文字で表現される{{domxref("DOMString")}}を返します。</p>
<h2 id="Syntax" name="Syntax">文法</h2>
<pre class="syntaxbox">var <em>id</em> = <em>mediaStream</em>.id;
</pre>
<h2 id="例">例</h2>
<pre class="brush: js"><code class="language-html">var p = navigator.mediaDevices.getUserMedia({ audio: true, video: true });
p.then(function(stream) {
console.log(stream.id);
};)
</code></pre>
<h2 id="仕様">仕様</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">仕様</th>
<th scope="col">状況</th>
<th scope="col">コメント</th>
</tr>
<tr>
<td>{{SpecName('Media Capture', '#widl-MediaStream-id', 'MediaStream.id')}}</td>
<td>{{Spec2('Media Capture')}}</td>
<td>初版</td>
</tr>
</tbody>
</table>
<h2 id="Browser_compatibility" name="Browser_compatibility">ブラウザ互換性</h2>
<p>{{ CompatibilityTable() }}</p>
<div id="compat-desktop">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Chrome</th>
<th>Edge</th>
<th>Firefox (Gecko)</th>
<th>Internet Explorer</th>
<th>Opera</th>
<th>Safari</th>
</tr>
<tr>
<td>Basic support</td>
<td>{{ CompatUnknown() }}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{ CompatGeckoDesktop(41) }}</td>
<td>{{ CompatUnknown() }}</td>
<td>{{ CompatUnknown() }}</td>
<td>{{ CompatUnknown() }}</td>
</tr>
</tbody>
</table>
</div>
<div id="compat-mobile">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Android</th>
<th>Edge</th>
<th>Firefox Mobile (Gecko)</th>
<th>IE Mobile</th>
<th>Opera Mobile</th>
<th>Safari Mobile</th>
</tr>
<tr>
<td>Basic support</td>
<td>{{ CompatUnknown() }}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{ CompatGeckoMobile(41) }}</td>
<td>{{ CompatUnknown() }}</td>
<td>{{ CompatUnknown() }}</td>
<td>{{ CompatUnknown() }}</td>
</tr>
</tbody>
</table>
</div>
<h2 id="関連項目">関連項目</h2>
<ul>
<li>{{domxref("MediaStream")}}インタフェース</li>
</ul>
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