PerformanceObserver class
The interface is used to observe performance measurement events and be notified of new performance entries as they are recorded in the browser's performance timeline. Note: This feature is available in Web Workers
- Available extensions
- Annotations
-
- @JS.new()
- @staticInterop
Constructors
- PerformanceObserver(PerformanceObserverCallback callback)
-
factory
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
disconnect(
) → void -
Available on PerformanceObserver, provided by the PropsPerformanceObserver extension
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
observe(
[PerformanceObserverInit? options]) → void -
Available on PerformanceObserver, provided by the PropsPerformanceObserver extension
-
takeRecords(
) → Iterable< PerformanceEntry> -
Available on PerformanceObserver, provided by the PropsPerformanceObserver extension
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited