{"json_modified": "2016-10-12T09:51:25.579774", "uuid": "92d6d5f4-fd85-4dba-9393-51d49a173f2d", "title": "ExtendableEvent.waitUntil()", "url": "/en-US/docs/Web/API/ExtendableEvent/waitUntil", "tags": ["ExtendableEvent", "Reference", "waitUntil", "API", "Method"], "translations": [{"uuid": "902ab0d0-72f1-4d74-86c8-7507a1a90690", "title": "ExtendableEvent.waitUntil()", "url": "/fr/docs/Web/API/ExtendableEvent/waitUntil", "tags": [], "summary": "The <code><strong>ExtendableEvent.waitUntil()</strong></code> method extends the lifetime of the event. When called in an <a href=\"/fr/docs/Web/API/EventHandler\" title=\"Cette documentation n'a pas encore &#xE9;t&#xE9; r&#xE9;dig&#xE9;e, vous pouvez aider en contribuant&#xA0;!\"><code>EventHandler</code></a> associated to the <code><a href=\"/fr/docs/Web/Reference/Events/install\" title=\"/fr/docs/Web/Reference/Events/install\">install</a></code> event, it delays treating the <a href=\"/fr/docs/Web/API/ServiceWorkerRegistration/installing\" title=\"Cette documentation n'a pas encore &#xE9;t&#xE9; r&#xE9;dig&#xE9;e, vous pouvez aider en contribuant&#xA0;!\"><code>installing</code></a>\u00a0worker as installed until the passed <a href=\"/fr/docs/Web/JavaScript/Reference/Objets_globaux/Promise\" title=\"L'interface Promise repr&#xE9;sente un interm&#xE9;diaire (proxy) vers une valeur qui n'est pas n&#xE9;cessairement connue au moment de sa cr&#xE9;ation. Cela permet d'associer des gestionnaires au succ&#xE8;s &#xE9;ventuel d'une action asynchrone et &#xE0; la raison d'une erreur. Ainsi, des m&#xE9;thodes asynchrones renvoient des valeurs comme les m&#xE9;thodes synchrones, la seule diff&#xE9;rence est que la valeur retourn&#xE9;e par la m&#xE9;thode asynchrone est une promesse (d'avoir une valeur plus tard).\"><code>Promise</code></a> resolves successfully. This is primarily used to ensure that a service worker is not considered installed until all of the core caches it depends on are populated.", "localization_tags": ["inprogress"], "locale": "fr", "last_edit": "2016-09-20T00:49:48", "review_tags": []}], "modified": "2016-10-12T09:51:25", "label": "ExtendableEvent.waitUntil()", "localization_tags": [], "locale": "en-US", "id": 145419, "last_edit": "2016-10-12T09:51:18", "summary": "The <code><strong>ExtendableEvent.waitUntil()</strong></code> method extends the lifetime of the event. In service workers, extending the life of an event prevents the browser from terminating the service worker before asynchronous operations within the event have completed.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Returns", "title": "Returns"}, {"id": "Parameters", "title": "Parameters"}, {"id": "Example", "title": "Example"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}, {"id": "See_also", "title": "See also"}], "slug": "Web/API/ExtendableEvent/waitUntil", "review_tags": ["technical"]}