ReadonlydurationThe read-only duration property returns a timestamp that is the duration of the performance entry. The meaning of this property depends on the value of this entry's entryType.
ReadonlyentryThe read-only entryType property returns a string representing the type of performance metric that this entry represents.
ReadonlynameThe read-only name property of the PerformanceEntry interface is a string representing the name for a performance entry. It acts as an identifier, but it does not have to be unique. The value depends on the subclass.
ReadonlystartThe read-only startTime property returns the first timestamp recorded for this PerformanceEntry. The meaning of this property depends on the value of this entry's entryType.
The
PerformanceEntryobject encapsulates a single performance metric that is part of the browser's performance timeline.MDN Reference