PerformanceMark is an interface for
PerformanceEntry objects with an
entryType of "
Entries of this type are typically created by calling
performance.mark() to add a named
DOMHighResTimeStamp (the mark) to the browser's performance timeline. To create a performance mark that isn't added to the browser's performance timeline, use the constructor.
Note: This feature is available in Web Workers
Creates a new
PerformanceMarkobject that isn't added to the browser's performance timeline.
This interface extends the following
PerformanceEntry properties by qualifying/constraining the properties as follows:
Returns the name given to the mark when it was created via a call to
0". (A mark has no duration.)
This interface also supports the following properties:
Returns arbitrary metadata that has been included in the mark upon construction.
This interface has no methods.
See the example in Using the User Timing API.
|User Timing |
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