/* Write a function called checkMatchingLeaves that takes in an object, and return true if every property on the object is the same, otherwise, return false. */

function checkMatchingLeaves(obj) {
let val;
  let flag = true;
  const checkLeaves = (tree) => {
    Object.keys(tree).forEach((key) => { //* * make comments for each line
      if (val === undefined && typeof key !== 'object') {
        val = tree[key];
        return undefined;
      }
      if (typeof tree[key] === 'object') return checkLeaves(tree[key]);
      if (tree[key] !== val) {
        flag = false;
        return undefined;
      }
    });
  };
  checkLeaves(obj);
  return flag;
}