---
title: decodeURIComponent()
slug: Web/JavaScript/Reference/Global_Objects/decodeURIComponent
translation_of: Web/JavaScript/Reference/Global_Objects/decodeURIComponent
---
<div>
<div>
<div>{{jsSidebar("Objects")}}</div>
</div>
</div>

<h2 id="Summary" name="Summary">Sommario</h2>

<p>La funzione <strong><code>decodeURIComponent()</code></strong> decodifica una parte di {{Glossary("URI")}} creata da {{jsxref("Global_Objects/encodeURIComponent", "encodeURIComponent()")}} o una funzione simile.</p>

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

<pre class="syntaxbox"><code>decodeURIComponent(<em>encodedURIComponent</em>)</code></pre>

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

<dl>
 <dt><code>encodedURIComponent</code></dt>
 <dd>Una parte codificata di un {{Glossary("URI")}}</dd>
</dl>

<h2 id="Description" name="Description">Descrizione</h2>

<p>Sostituisce ogni sequenza di escape nella parte di {{Glossary("URI")}} codificata con il carattere che la rappresenta.</p>

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

<h3 id="Decodificare_una_parte_di_URL_in_Cirillico">Decodificare una parte di URL in Cirillico</h3>

<pre class="brush: js">decodeURIComponent("JavaScript_%D1%88%D0%B5%D0%BB%D0%BB%D1%8B");
// "JavaScript_шеллы"
</pre>

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

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">Specifica</th>
   <th scope="col">Stato</th>
   <th scope="col">Commenti</th>
  </tr>
  <tr>
   <td>ECMAScript 3rd Edition.</td>
   <td>Standard</td>
   <td>Definizione iniziale.</td>
  </tr>
  <tr>
   <td>{{SpecName('ES5.1', '#sec-15.1.3.2', 'decodeURIComponent')}}</td>
   <td>{{Spec2('ES5.1')}}</td>
   <td> </td>
  </tr>
  <tr>
   <td>{{SpecName('ES6', '#sec-decodeuricomponent-encodeduricomponent', 'decodeURIComponent')}}</td>
   <td>{{Spec2('ES6')}}</td>
   <td> </td>
  </tr>
 </tbody>
</table>

<h2 id="Compatibilità_con_i_browser">Compatibilità con i browser</h2>

<p>{{ CompatibilityTable() }}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Funzionalità</th>
   <th>Chrome</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Supporto di base</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th><span style="font-family: 'Open Sans Light', sans-serif; font-size: 16px; line-height: 16px;">Funzionalità</span></th>
   <th>Android</th>
   <th>Chrome for Android</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td><span style="font-size: 12px; line-height: 18px;">Supporto di base</span></td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="See_Also" name="See_Also">Vedi anche</h2>

<ul>
 <li>{{jsxref("Global_Objects/decodeURI", "decodeURI()")}}</li>
 <li>{{jsxref("Global_Objects/encodeURI", "encodeURI()")}}</li>
 <li>{{jsxref("Global_Objects/encodeURIComponent", "encodeURIComponent()")}}</li>
</ul>