---
title: GlobalEventHandlers.onresize
slug: Web/API/GlobalEventHandlers/onresize
tags:
  - API
  - DOM
  - Proprietà
translation_of: Web/API/GlobalEventHandlers/onresize
---
<p>{{ ApiRef() }}</p>

<p>La proprietà <code><strong>GlobalEventHandlers.onresize</strong></code> contiene un {{domxref("EventHandler")}} il quale viene lanciato quando un evento {{event("resize")}} viene ricevuto.</p>

<h2 id="Syntax" name="Syntax">Sintassi</h2>

<pre class="eval">window.onresize = <em>funcRef</em>;
</pre>

<h3 id="Parameters" name="Parameters">Parameters</h3>

<ul>
 <li><code>funcRef</code> è un riferimento ad una funzione.</li>
</ul>

<h2 id="Example" name="Example">Esempio</h2>

<pre>window.onresize = doFunc;
</pre>

<pre>&lt;html&gt;
&lt;head&gt;

&lt;title&gt;onresize test&lt;/title&gt;

&lt;/head&gt;

&lt;body&gt;
&lt;p&gt;Ridimensiona la finestra del browser per lanciare l'evento resize.&lt;/p&gt;

&lt;p&gt;Altezza finestra: &lt;span id="height"&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;Larghezza finestra: &lt;span id="width"&gt;&lt;/span&gt;&lt;/p&gt;

&lt;script type="text/javascript"&gt;
  var heightOutput = document.querySelector('#height');
  var widthOutput = document.querySelector('#width');

  function resize() {
    heightOutput.textContent = window.innerHeight;
    widthOutput.textContent = window.innerWidth;
  }

  window.onresize = resize;
&lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;
</pre>

<h2 id="Notes" name="Notes">Note</h2>

<p>L'evento resize viene scatenato dopo che la finestra è stata ridimensionata.</p>

<h2 id="Specification" name="Specification">Specifiche</h2>

<table class="spectable standard-table">
 <tbody>
  <tr>
   <th scope="col">Specificazione</th>
   <th scope="col">Stato</th>
   <th scope="col">Commento</th>
  </tr>
  <tr>
   <td>{{SpecName('HTML WHATWG','webappapis.html#handler-onresize','onresize')}}</td>
   <td>{{Spec2('HTML WHATWG')}}</td>
   <td> </td>
  </tr>
 </tbody>
</table>