// Instructions from your teacher:
// Write a function called "getNthElementOfProperty".

// Given an object and a key, "getNthElementOfProperty" returns the nth element of an array located at the given key.

// Notes:
// * If the array is empty, it should return undefined.
// * If n is out of range, it should return undefined.
// * If the property at the given key is not an array, it should return undefined.
// * If there is no property at the key, it should return undefined.

function getNthElementOfProperty(obj, key, n) {
  // your code here
  if(Array.isArray(obj[key])) {
    return obj[key][n]
  }

}