{"json_modified": "2016-03-28T08:48:40.962643", "uuid": "e821823e-722c-4111-9452-75365b29d7c5", "title": "PerformanceEntry", "url": "/en-US/docs/Web/API/PerformanceEntry", "tags": ["Web Performance", "Reference", "Interface", "API"], "translations": [], "modified": "2015-12-29T06:23:29", "label": "PerformanceEntry", "localization_tags": [], "locale": "en-US", "id": 168469, "last_edit": "2015-12-29T06:23:26", "summary": "The <strong><code>PerformanceEntry</code></strong> object encapsulates a single performance metric that is part of the <em>performance timeline</em>. A <em>performance entry</em> can be directly created by making a performance <em><a href=\"/en-US/docs/Web/API/PerformanceMark\" title=\"PerformanceMark is an abstract interface for performance entries with an entry type of &quot;mark&quot;. Entries of this type are created by calling performance.mark() to add a named DOMHighResTimeStamp (the mark) to the browser's performance timeline.\"><code>mark</code></a></em> or <em><a href=\"/en-US/docs/Web/API/PerformanceMeasure\" title=\"PerformanceMeasure is an abstract interface for performance entries with an entry type of &quot;measure&quot;. Entries of this type are created by calling performance.measure() to add a named DOMHighResTimeStamp (the measure) between two marks to the browser's performance timeline.\"><code>measure</code></a></em> (for example by calling the <a href=\"/en-US/docs/Web/API/Performance/mark\" title=\"The mark() method creates a timestamp in the browser's performance entry buffer with the given name. The application defined timestamp can be retrieved by one of the Performance interface's getEntries*() methods (getEntries(), getEntriesByName() or getEntriesByType()).\"><code>mark()</code></a> 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).", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Properties", "title": "Properties"}, {"id": "Methods", "title": "Methods"}, {"id": "Example", "title": "Example"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}], "slug": "Web/API/PerformanceEntry", "review_tags": ["technical"]}