Watched video and did as video directed

Tell us what’s happening:
It is still not passing

Your code so far


function multiplyAll(arr) {
var 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 *=[i][j]
}
}
// Only change code above this line
return product;
}

// Modify values below to test your code
multiplyAll([[1,2],[3,4],[5,6,7]]);

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.88 Safari/537.36.

Challenge: Nesting For Loops

Link to the challenge:
https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/basic-javascript/nesting-for-loops

What do you think this is?