I don't get it that a boolean return turns to a sorted array?How?

Answer 1

its because parameter in method sort is converted to boolean, then the return is used back to sort into array.
its difficult to explain.

Answer 2

the best way is practice it in code playground, but Sololearn don't support it yet.

Answer 3

I don't know if it's me alone but I don't understand the question :S

Answer 4

I don't even know what swift is

Answer 5

Swift is the language used to create apps on Apple devices. Version 3 of the language has been released.