Returns a new list with n
elements removed from the right.
Use List.sublist()
to remove the specified number of elements from the right.
代码实现
List<T> dropRight<T>(List<T> lst, [int n = 1]) {
return lst.sublist(0, lst.length - n);
}
使用样例
dropRight([1, 2, 3]); // [1,2]
dropRight([1, 2, 3], 2); // [1]