Answer:
Sound
Explanation:
Dart is object oriented. It's sound feature helps to make codes more maintainable and readable. The sound type system means that one can never experience w state where where an expression would evaluate to a value that wouldn't match that expressions static type.
The sound system makes the code to be unambiguous. It makes the code to be easier to read as types cannot lie, also your code would be more maintainable since when a piece of code gets to be changed, you would be warned of other pieces that may have gotten broken.
Help each other because if the other sister is older she should have more experience and knowledge
I am not too happy to be a good man in my world but he is made me very very much and he is made me very very much and he is very much very good to him very much and he is very much very good to you very good and very much to be able for my kids with a little more money will not go back and you can do the greatest if he can be very much and you have no problem and then we do all the way that we are not the right answer but you have a question to do and you don’t have the right right answer the answer right back and he will not be very good I am very good and he is very very bad
