---
title: PerformanceLongTaskTiming
slug: Web/API/PerformanceLongTaskTiming
tags:
  - API
  - Interface
  - Long Tasks API
  - PerformanceLongTaskTiming
  - Reference
translation_of: Web/API/PerformanceLongTaskTiming
---
{{SeeCompatTable}}{{APIRef("Long Tasks")}}

L'interface **`PerformanceLongTaskTiming`** de [l'API _Long Tasks_](/fr/docs/Web/API/Long_Tasks_API) signale les instances de tâches longues.

{{InheritanceDiagram}}

## Propriétés

- [`PerformanceLongTaskTiming`](/fr/docs/Web/API/PerformanceLongTaskTiming) _lecture seule_ {{ExperimentalBadge}}
  - : Retourne une séquence d'instances [`TaskAttributionTiming`](/fr/docs/Web/API/TaskAttributionTiming).

## Spécifications

| Spécification                                                                                                        | Statut                           | Commentaire          |
| -------------------------------------------------------------------------------------------------------------------- | -------------------------------- | -------------------- |
| {{SpecName('Long Tasks','#sec-PerformanceLongTaskTiming','PerformanceLongTaskTiming')}} | {{Spec2('Long Tasks')}} | Définition initiale. |

## Compatibilité des navigateurs

{{Compat("api.PerformanceLongTaskTiming")}}