truncate method

List<T> truncate(
  1. T item, [
  2. List<T> others = const []
])

Implementation

List<T> truncate(T item, [List<T> others = const []]) {
  List<T> list = [];
  forEach((element) => list
    ..add(element)
    ..add(item));
  return list..removeLast();
}