http://www.freecodecamp.com/fcc3b5ed711 's solution for Bonfire: Return Largest Numbers in Arrays

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

// Bonfire: Return Largest Numbers in Arrays
// Author: @fcc3b5ed711
// 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) {
  return  arr.map(function(obj){
    return obj.reduce( function(a, b) {
      if (a > b)
        return a;
      else
        return b;
    });
  });
}

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