1. Dart
2. dart:html
3. Performance
4. measure method

Performance class

1. Properties
2. memory
3. navigation
4. timeOrigin
5. timing
6. hashCode
7. on
8. runtimeType
9. Methods
10. clearMarks
11. clearMeasures
12. clearResourceTimings
13. getEntries
14. getEntriesByName
15. getEntriesByType
16. mark
17. measure
18. now
19. setResourceTimingBufferSize
20. addEventListener
21. dispatchEvent
22. noSuchMethod
23. removeEventListener
24. toString
25. Operators
26. operator ==
27. Static properties
28. supported

void measure(String measureName, String startMark, String endMark) native;