{"json_modified": "2016-08-10T13:54:48.876010", "uuid": "8dba9298-bd96-4fa7-b374-5798d1c0c662", "title": "Performance.measure()", "url": "/en-US/docs/Web/API/Performance/measure", "tags": ["Web Performance", "Reference", "API", "Method"], "translations": [], "modified": "2016-08-10T13:54:49", "label": "Performance.measure()", "localization_tags": [], "locale": "en-US", "id": 169611, "last_edit": "2016-08-10T13:54:40", "summary": "The <strong><code>measure()</code></strong> method creates a named <a href=\"/en-US/docs/Web/API/DOMHighResTimeStamp\" title=\"The DOMHighResTimeStamp type is a double and is used to store a time value. The value could be a discrete point in time or the difference in time between two discrete points in time. The unit is milliseconds and should be accurate to 5 &#xB5;s (microseconds). However, if the browser is unable to provide a time value accurate to 5 microseconds (due, for example, to hardware or software constraints), the browser can represent the value as a time in milliseconds accurate to a millisecond.\"><code>timestamp</code></a> in the browser's <em>performance entry buffer</em> between two specified marks (known as the <em>start mark</em> and <em>end mark</em>, respectively). The named timestamp is referred to as a <em>measure</em>.", "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/Performance/measure", "review_tags": ["technical"]}