I've solved several solutions on Codewars and saw that one solution uses [...], I tried to google what it is, but google only finds how to create arrays (List a = [1, 2, 3]), how to get the second element, etc.

Solution: List<int> reverseList(List<int> list)=>[...list.reversed];

CodePudding user response：

in Dart when we use the three dots (...) it means that we are unpacking one and taking its values and throwing it, so when we have

List<int> reverseList(List<int> list)=>[...list.reversed]

means that we take the reverse list, unpack it and throw it in another List that you are creating