PerformanceMark

PerformanceMark is an abstract interface for PerformanceEntry objects with an entryType of "mark". Entries of this type are created by calling performance.mark() to add a named DOMHighResTimeStamp (the mark) to the browser's performance timeline.

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Properties

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

PerformanceEntry.entryType: Returns "mark".
PerformanceEntry.name: Returns the name given to the mark when it was created via a call to performance.mark().
PerformanceEntry.startTime: Returns the DOMHighResTimeStamp when performance.mark() was called.
PerformanceEntry.duration: Returns "0". (A mark has no duration.)

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 'PerformanceMark' in that specification.	Editor's Draft
User Timing The definition of 'PerformanceMark' 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