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---
title: downloads.DoubleDelta
slug: Mozilla/Add-ons/WebExtensions/API/downloads/DoubleDelta
tags:
- API
- Add-ons
- DoubleDelta
- Extensions
- Non-standard
- Reference
- Type
- WebExtensions
- downloads
translation_of: Mozilla/Add-ons/WebExtensions/API/downloads/DoubleDelta
---
<div>{{AddonSidebar()}}</div>
<p>Le type <code>DoubleDelta</code> de l'API {{WebExtAPIRef("downloads")}} représente la différence entre deux doubles.</p>
<h2 id="Type">Type</h2>
<p>Les valeurs de ce type sont des objets. Ils contiennent les propriétés suivantes :</p>
<dl>
<dt><code>current</code>{{optional_inline}}</dt>
<dd>Un <code>number</code> représentant la double valeur actuelle.</dd>
<dt><code>previous</code>{{optional_inline}}</dt>
<dd>Un <code>number</code> représentant la valeur double précédente.</dd>
</dl>
<h2 id="Compatibilité_du_navigateur">Compatibilité du navigateur</h2>
<p>{{Compat("webextensions.api.downloads.DoubleDelta")}}</p>
<p>{{WebExtExamples}}</p>
<div class="note"><p><strong>Note :</strong></p>
<p>Cette API est basée sur l'API Chromium <a href="https://developer.chrome.com/extensions/downloads"><code>chrome.downloads</code></a>.</p>
<p>Les données de compatibilité relatives à Microsoft Edge sont fournies par Microsoft Corporation et incluses ici sous la licence Creative Commons Attribution 3.0 pour les États-Unis.</p>
</div>
<div class="hidden">
<pre>// Copyright 2015 The Chromium Authors. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
</pre>
</div>
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