Hi, I badly need an advice for my code. Why System says Cannot read property “length” of undefined:
function largestOfFour(arr) {
var largestArray = [];
for (var i = 0; i < arr.length; i++) {
var largestNumber = arr[i][0];
for (var j = 1; j < arr[i].length; i++) {
if (largestNumber < arr[i][j]) {
largestNumber = arr[i][j];
}
}
largestArray[i] = largestNumber;
}
console.log(largestArray);
return largestArray;
}
largestOfFour([[4, 5, 1, 3], [13, 27, 18, 26], [32, 35, 37, 39], [1000, 1001, 857, 1]]);