1. Dart
2. dart:html
3. StylePropertyMap
4. append method

StylePropertyMap class

1. Properties
2. hashCode
3. runtimeType
4. Methods
5. append
6. delete
7. get
8. getAll
9. getProperties
10. has
11. noSuchMethod
12. set
13. toString
14. Operators
15. operator ==

void append(String property, Object value) native;