SemigroupConcat constructor

1. func_dart_core
2. string
3. SemigroupConcat
4. SemigroupConcat constructor

SemigroupConcat class

1. Constructors
2. SemigroupConcat
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. concat
8. noSuchMethod
9. toString
10. Operators
11. operator ==