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+---
+title: WindowEventHandlers.onstorage
+slug: Web/API/WindowEventHandlers/onstorage
+tags:
+  - API
+  - Armazenamento web
+  - Propriedade
+  - Referencia
+  - WindowEventHandlers
+translation_of: Web/API/WindowEventHandlers/onstorage
+---
+<div class="syntaxbox">{{ ApiRef() }}</div>
+
+<p>A propriedade <strong><code>WindowEventHandlers.onstorage</code></strong> contém um manipulador de eventos que executa quando o evento {{event("storage")}} dispara. Isto ocorre quando a área de armazenamento é mudada. (ex. um novo item é armazenado.)</p>
+
+<h2 id="Syntax" name="Syntax">Sintaxe</h2>
+
+<pre class="syntaxbox"><em>windowObj</em>.onstorage = function() { ... };</pre>
+
+<h2 id="Specification" name="Specification">Exemplos</h2>
+
+<pre class="brush: js">window.onstorage = function(e) {
+  console.log('The ' + e.key + ' key has been changed from ' + e.oldValue + ' to ' + e.newValue + '.');
+};</pre>
+
+<h2 id="Especificações">Especificações</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">Especificação</th>
+   <th scope="col">Status</th>
+   <th scope="col">Comentário</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('HTML WHATWG','webappapis.html#handler-window-onstorage','onstorage')}}</td>
+   <td>{{Spec2('HTML WHATWG')}}</td>
+   <td> </td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Compatibilidade_entre_navegadores">Compatibilidade entre navegadores</h2>
+
+<p>{{CompatibilityTable}}</p>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Característica</th>
+   <th>Chrome</th>
+   <th>Edge</th>
+   <th>Firefox (Gecko)</th>
+   <th>Internet Explorer</th>
+   <th>Opera</th>
+   <th>Safari (WebKit)</th>
+  </tr>
+  <tr>
+   <td>Suporte básico</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatGeckoDesktop(45)}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile" style="line-height: 19.0909080505371px;">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Característica</th>
+   <th>Android</th>
+   <th>Android Webview</th>
+   <th>Edge</th>
+   <th>Firefox Mobile (Gecko)</th>
+   <th>Firefox OS</th>
+   <th>IE Mobile</th>
+   <th>Opera Mobile</th>
+   <th>Safari Mobile</th>
+   <th>Chrome para Android</th>
+  </tr>
+  <tr>
+   <td>Suporte básico</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoMobile(45)}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>