bonfire-sum-all-numbers-in-a-range.js

// Bonfire: Sum All Numbers in a Range
// Author: @minsooshin
// Challenge: http://www.freecodecamp.com/challenges/bonfire-sum-all-numbers-in-a-range
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function sumAll(arr) {
  var newArr = [],
      min = Math.min(arr[0], arr[1]),
      max = Math.max(arr[0], arr[1]);
  
  for(var i = min; i <= max; i++) {
    newArr.push(i);
  }
  return newArr.reduce(function(sum, current) {
    return sum + current;
  });
}

sumAll([1, 4]);