What's wrong with my code

/* Variable to store play button by id for event listener assignment below - You can ignore this */
const playBtn = document.querySelector('#play-btn');

/* Variables to store DOM elements that display player's scores - You'll use these variables in the event listener below */
const scoreOneElement = document.querySelector('#score-1');
const scoreTwoElement = document.querySelector('#score-2');

// YOUR CODE GOES HERE!!! Do the steps below to complete this challenge

// 1) Uncomment the array below
//const twelveSidedDie = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];
const twelveSidedDie = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];

// 2) Create a function named diceRoll.  Give it a parameter called array — this goes in the parens.
player.stamina = 6 + DiceRoll("1d6")
msg ("Stamina: " + player.stamina)
  // 2a) Create a variable that uses `Math.ceil`, `Math.random` and the length of the array parameter
Array.from({length: 40}, () => Math.floor(Math.random() * 40));
  // NOTE: Introducing Functions video — https://teamtreehouse.com/library/introducing-functions-5
  // NOTE: Create a Random Number video — https://teamtreehouse.com/library/javascript-basics/working-with-numbers/create-a-random-number

  // 2b) `return` the random number variable
var foo = getRandomNumber(0, 40);
console.log(foo);