1. Dart
2. dart:html
3. PerformanceObserver
4. PerformanceObserver factory constructor

PerformanceObserver class

1. Constructors
2. PerformanceObserver
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. disconnect
8. observe
9. noSuchMethod
10. toString
11. Operators
12. operator ==

factory PerformanceObserver(PerformanceObserverCallback callback) {
  var callback_1 = convertDartClosureToJS(callback, 2);
  return PerformanceObserver._create_1(callback_1);
}