{"json_modified": "2016-03-28T08:46:20.310158", "uuid": "08c8fabf-09db-4e07-b82e-fb235461e0c4", "title": "WindowEventHandlers.onunhandledrejection", "url": "/en-US/docs/Web/API/WindowEventHandlers/onunhandledrejection", "tags": ["Event Handler", "API", "Promises", "Reference", "Property", "HTML DOM", "events", "Events", "onunhandledrejection", "WindowEventHandlers"], "translations": [], "modified": "2016-03-23T16:49:14", "label": "WindowEventHandlers.onunhandledrejection", "localization_tags": [], "locale": "en-US", "id": 159881, "last_edit": "2016-03-23T16:49:11", "summary": "The <strong><code>Window.onunhandledrejection</code></strong> property is an event handler for processing <code><a href=\"/en-US/docs/Web/Events/unhandledrejection\" title=\"/en-US/docs/Web/Events/unhandledrejection\">unhandledrejection</a></code> events, which are raised for unhandled <a href=\"/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise\" title=\"The Promise object is used for deferred and asynchronous computations. A Promise represents an operation that hasn't completed yet, but is expected in the future.\"><code>Promise</code></a> rejections.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}], "slug": "Web/API/WindowEventHandlers/onunhandledrejection", "review_tags": []}