{"json_modified": "2016-03-28T08:51:02.406211", "uuid": "0024fdbc-384b-4c1e-a73b-e36805378288", "title": "reason", "url": "/en-US/docs/Web/API/PromiseRejection/reason", "tags": ["API", "Interface", "Reference", "Property", "Experimental", "PromiseRejection", "reason"], "translations": [], "modified": "2016-03-09T11:14:35", "label": "reason", "localization_tags": [], "locale": "en-US", "id": 179360, "last_edit": "2016-03-09T11:14:32", "summary": "The <code><strong>reason</strong></code> read-only property of the <a href=\"/en-US/docs/Web/API/PromiseRejection\" title=\"This object provides information about a Promise that has been rejected.\"><code>PromiseRejection</code></a> returns the rejection reason for the <a href=\"/en-US/docs/Web/API/Promise\" title=\"The Promise interface represents a proxy for a value not necessarily known at its creation time. It allows you to associate handlers to an asynchronous action's eventual success or failure. This lets asynchronous methods return values like synchronous methods: instead of the final value, the asynchronous method returns a promise of having a value at some point in the future.\"><code>Promise</code></a> that the current notification is about. Although the reason can be <code>undefined</code>, it is generally an <a href=\"https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Error\" title=\"/en-US/docs/JavaScript/Reference/Global_Objects/Error\"><code>Error</code></a> object, like in exception handling.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Value", "title": "Value"}, {"id": "Example", "title": "Example"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}, {"id": "See_also", "title": "See also"}], "slug": "Web/API/PromiseRejection/reason", "review_tags": ["technical"]}