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.
Note: This feature is available in Web Workers
This interface has no properties but it 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 has no methods.
See the example in Using the User Timing API.
|User Timing Level 2 (User Timing 2)|
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