http://www.freecodecamp.com/dbess1 's solution for Bonfire: Return Largest Numbers in Arrays

bonfire-return-largest-numbers-in-arrays.js

// Bonfire: Return Largest Numbers in Arrays
// Author: @dbess1
// Challenge: http://www.freecodecamp.com/challenges/bonfire-return-largest-numbers-in-arrays
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function largestOfFour(arr) {
var numbers = [];
  for(var i = 0; i < arr.length; i++){    //for iterating through the large array
var biggestNumber = 0;
    for(var j = 0; j < arr[i].length; j++){      //for iterating through the sub-arrays
     if(arr[i][j] > biggestNumber){              
      biggestNumber = arr[i][j];
     }
   } 
  numbers[i] = biggestNumber;
  }
    
  return numbers;
}

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