{"json_modified": "2016-03-28T08:48:41.761561", "uuid": "343fc590-bc97-4fd7-aef0-9c2a2cbd0a31", "title": "PerformanceEntry.toJSON()", "url": "/en-US/docs/Web/API/PerformanceEntry/toJSON", "tags": ["Web Performance", "Reference", "API", "Method"], "translations": [], "modified": "2016-02-29T14:12:56", "label": "PerformanceEntry.toJSON()", "localization_tags": [], "locale": "en-US", "id": 168489, "last_edit": "2016-02-29T14:12:53", "summary": "The <strong><code>toJSON()</code></strong> method is a <em>serializer</em>; it returns a JSON representation of the <a href=\"/en-US/docs/Web/API/PerformanceEntry\" title=\"The PerformanceEntry object encapsulates a single performance metric that is part of the performance timeline. A performance entry can be directly created by making a performance mark or measure (for example by calling the mark() method) at an explicit point in an application. Performance entries are also created in indirect ways such as loading a resource (such as an image).\"><code>performance entry</code></a> object.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Arguments", "title": "Arguments"}, {"id": "Return_value", "title": "Return value"}, {"id": "Example", "title": "Example"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}], "slug": "Web/API/PerformanceEntry/toJSON", "review_tags": ["technical"]}