tree in dart code example

Example 1: binary tree in dart

class Node<T> {
  final T value;
  Node<T> left, right;
  Node(this.value, {this.left, this.right});
}

Example 2: trees in dart

class Node<T> {
  final T value;
  final List<Node<T>> children;
  Node(this.value, this.children);
}