Basic JavaScript - Nesting For Loops

Tell us what’s happening:
Describe your issue in detail here.
i keep getting the response product is not defined from the console log
Your code so far

function multiplyAll(arr) {
  let product = 1;
  // Only change code below this line
  for (var i = 0; i < arr.length; i++) {
    for (var j = 0; j < arr[i].length; j++) {
      product *= arr[i][j];
  // Only change code above this line
  return product;
multiplyAll([[1, 2], [3, 4], [5, 6, 7]]);

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Challenge: Basic JavaScript - Nesting For Loops

Link to the challenge:

You can’t print the variable product on the console because it’s not defined in the global scope, it is only defined within the function multiplyAll.