PerformanceMeasure

PerformanceMeasure is an abstract interface for PerformanceEntry objects with an entryType of "measure". 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.

  <div id="interfaceDiagram" style="display: inline-block; position: relative; width: 100%; padding-bottom: 11.666666666666666%; vertical-align: middle; overflow: hidden;"><svg style="display: inline-block; position: absolute; top: 0; left: 0;" viewbox="-50 0 600 70" preserveAspectRatio="xMinYMin meet"><a xlink:href="https://developer.mozilla.org/en-US/docs/Web/API/PerformanceEntry" target="_top"><rect x="1" y="1" width="160" height="50" fill="#fff" stroke="#D4DDE4" stroke-width="2px" /><text  x="81" y="30" font-size="12px" font-family="Consolas,Monaco,Andale Mono,monospace" fill="#4D4E53" text-anchor="middle" alignment-baseline="middle">PerformanceEntry</text></a><polyline points="161,25  171,20  171,30  161,25" stroke="#D4DDE4" fill="none"/><line x1="171" y1="25" x2="201" y2="25" stroke="#D4DDE4"/><a xlink:href="https://developer.mozilla.org/en-US/docs/Web/API/PerformanceMeasure" target="_top"><rect x="201" y="1" width="180" height="50" fill="#F4F7F8" stroke="#D4DDE4" stroke-width="2px" /><text  x="291" y="30" font-size="12px" font-family="Consolas,Monaco,Andale Mono,monospace" fill="#4D4E53" text-anchor="middle" alignment-baseline="middle">PerformanceMeasure</text></a></svg></div>

  a:hover text { fill: #0095DD; pointer-events: all;}

Properties

This interface has no properties but it extends the following PerformanceEntry properties by qualifying/constrainting the properties as follows:

PerformanceEntry.entryType: Returns "measure".
PerformanceEntry.name: Returns the name given to the measure when it was created via a call to performance.measure().
PerformanceEntry.startTime: Returns a timestamp given to the measure when performance.measure() was called.
PerformanceEntry.duration: Returns a DOMHighResTimeStamp that is the duration of the measure (typically, the measure's end mark timestamp minus its start mark timestamp).

Methods

This interface has no methods.

Example

See the example in Using the User Timing API.

Specifications

Specification	Status	Comment
User Timing The definition of 'PerformanceMeasure' in that specification.	Editor's Draft
User Timing The definition of 'PerformanceMeasure' in that specification.	Recommendation	Basic definition.

Feature	Chrome	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support.	43	(Yes)	41	10	33	No support

Feature	Android	Edge	Firefox Mobile (Gecko)	Firefox OS	IE Phone	Opera Mobile	Safari Mobile
Basic support.	46	(Yes)	42	42	10	33	No support