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+---
+title: PerformanceLongTaskTiming
+slug: Web/API/PerformanceLongTaskTiming
+tags:
+  - API
+  - Interface
+  - Long Tasks API
+  - PerformanceLongTaskTiming
+  - Reference
+translation_of: Web/API/PerformanceLongTaskTiming
+---
+<p>{{SeeCompatTable}}{{APIRef("Long Tasks")}}</p>
+
+<p>L'interface <strong><code>PerformanceLongTaskTiming</code></strong> de <a href="/fr/docs/Web/API/Long_Tasks_API">l'API <i>Long Tasks</i></a> signale les instances de tâches longues.</p>
+
+<p>{{InheritanceDiagram}}</p>
+
+<h2 id="Properties">Propriétés</h2>
+
+<dl>
+  <dt><a href="/fr/docs/Web/API/PerformanceLongTaskTiming"><code>PerformanceLongTaskTiming</code></a> <em>lecture seule</em> {{ExperimentalBadge}}</dt>
+  <dd>Retourne une séquence d'instances <a href="/fr/docs/Web/API/TaskAttributionTiming"><code>TaskAttributionTiming</code></a>.</dd>
+</dl>
+
+<h2 id="Specifications">Spécifications</h2>
+
+<table class="standard-table">
+  <thead>
+    <tr>
+      <th scope="col">Spécification</th>
+      <th scope="col">Statut</th>
+      <th scope="col">Commentaire</th>
+    </tr>
+  </thead>
+  <tbody>
+    <tr>
+      <td>{{SpecName('Long Tasks','#sec-PerformanceLongTaskTiming','PerformanceLongTaskTiming')}}</td>
+      <td>{{Spec2('Long Tasks')}}</td>
+      <td>Définition initiale.</td>
+    </tr>
+  </tbody>
+</table>
+
+<h2 id="Browser_compatibility">Compatibilité des navigateurs</h2>
+
+<p>{{Compat("api.PerformanceLongTaskTiming")}}</p>