Return an array consisting of the largest number from each provided sub-array. For simplicity, the provided array will contain exactly 4 sub-arrays.

Return Largest Numbers in Arrays

//javascript
function largestOfOne(arr) {
  var largest = 0;
  console.log(arr.length);
  for (i = 0; i < arr.length; i++) {
    console.log(i);
    if (largest < arr[i]) {
      largest = arr[i];
    }

  }
  console.log(largest);
  return largest;
}
largestOfOne([0, 15, 32, 18]);

function largestOfFour(arr) {
  // You can do this!
//console.log(arr[0]+"allala");
  var arrResult=[];
  for (x = 0; x < arr.length; x++) {

    
arrResult.push(largestOfOne(arr[x]));    
console.log(largestOfOne(arr[x])+" "+x);
    
  }
  return arrResult;
}

largestOfFour([
  [4, 5, 1, 3],
  [13, 27, 18, 26],
  [32, 35, 37, 39],
  [1000, 1001, 857, 1]
]);