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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="Browser_compatibility">Compatibilidade com 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>
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