for loop inside a for loop javascript
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*=arr[j];
}
}
// Only change code above this line
return product;
}
// Modify values below to test your code
multiplyAll([[1,2],[3,4],[5,6,7]]);