files/ja/web/api/window/storage_event/index.html


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---
title: storage
slug: Web/API/Window/storage_event
translation_of: Web/API/Window/storage_event
---
<p><code>storage</code> イベントは、ストレージエリア (<code>localStorage</code> または <code>sessionStorage</code>) が変更されたときに発生します。詳しくは <a href="/ja/docs/Web/API/Web_Storage_API">Web Storage API</a> をご覧ください。</p>

<h2 id="General_info" name="General_info">一般情報</h2>

<dl>
 <dt style="float: left; text-align: right; width: 120px;">仕様</dt>
 <dd style="margin: 0 0 0 120px;"><em><a href="http://www.w3.org/TR/webstorage/#the-storage-event">Web Storage</a></em></dd>
 <dt style="float: left; text-align: right; width: 120px;">インターフェイス</dt>
 <dd style="margin: 0 0 0 120px;">{{domxref("StorageEvent")}}</dd>
 <dt style="float: left; text-align: right; width: 120px;">バブリング</dt>
 <dd style="margin: 0 0 0 120px;">不可</dd>
 <dt style="float: left; text-align: right; width: 120px;">キャンセル可能か</dt>
 <dd style="margin: 0 0 0 120px;">不可</dd>
 <dt style="float: left; text-align: right; width: 120px;">ターゲット</dt>
 <dd style="margin: 0 0 0 120px;">DefaultView (<code>&lt;window&gt;</code>)</dd>
 <dt style="float: left; text-align: right; width: 120px;">既定のアクション</dt>
 <dd style="margin: 0 0 0 120px;">なし</dd>
</dl>

<h2 id="Properties" name="Properties">プロパティ</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">Property</th>
   <th scope="col">Type</th>
   <th scope="col">Description</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td><code>target</code> {{readonlyInline}}</td>
   <td>{{domxref("EventTarget")}}</td>
   <td>The event target (the topmost target in the DOM tree).</td>
  </tr>
  <tr>
   <td><code>type</code> {{readonlyInline}}</td>
   <td>{{domxref("DOMString")}}</td>
   <td>The type of event.</td>
  </tr>
  <tr>
   <td><code>bubbles</code> {{readonlyInline}}</td>
   <td>{{jsxref("Boolean")}}</td>
   <td>Whether the event normally bubbles or not.</td>
  </tr>
  <tr>
   <td><code>cancelable</code> {{readonlyInline}}</td>
   <td>{{jsxref("Boolean")}}</td>
   <td>Whether the event is cancellable or not.</td>
  </tr>
  <tr>
   <td><code>key</code> {{readonlyInline}}</td>
   <td>{{domxref("DOMString")}} (string)</td>
   <td>The key being changed.</td>
  </tr>
  <tr>
   <td><code>oldValue</code> {{readonlyInline}}</td>
   <td>{{domxref("DOMString")}} (string)</td>
   <td>The old value of the key being changed.</td>
  </tr>
  <tr>
   <td><code>newValue</code> {{readonlyInline}}</td>
   <td>{{domxref("DOMString")}} (string)</td>
   <td>The new value of the key being changed.</td>
  </tr>
  <tr>
   <td><code>url</code> {{readonlyInline}}</td>
   <td>{{domxref("DOMString")}} (string)</td>
   <td>The address of the document whose key changed.</td>
  </tr>
  <tr>
   <td><code>storageArea</code> {{readonlyInline}}</td>
   <td>{{domxref("Storage")}}</td>
   <td>The Storage object that was affected.</td>
  </tr>
 </tbody>
</table>