ds-algo-study/DS-n-Algos/Binary-Trees/tree_order_project/lib/tree_order.js

Just experimenting with publishing a package

function inOrderArray(root, arr = []) {
  if (!root) return [];
  inOrderArray(root.left, arr);
  arr.push(root.val);
  inOrderArray(root.right, arr);
  return arr;
}

function postOrderArray(root, arr = []) {
  if (!root) return [];
  postOrderArray(root.left, arr);
  postOrderArray(root.right, arr);
  arr.push(root.val);
  return arr;
}

module.exports = {
  inOrderArray,
  postOrderArray
};