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.

PerformanceEntry PerformanceMeasure

Note: This feature is available in Web Workers

Properties

This interface defines:

PerformanceMeasure.detail

Contains arbitrary metadata about the measure. This may be passed in as a property of the performance.measure() argument MeasureOptions.

In addition, it extends the following PerformanceEntry properties by qualifying/constraining 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
User Timing
# performancemeasure

Browser compatibility

BCD tables only load in the browser

See also