http://www.freecodecamp.com/nirajkrz 's solution for Bonfire: Sum All Odd Fibonacci Numbers

bonfire-sum-all-odd-fibonacci-numbers.js

// Bonfire: Sum All Odd Fibonacci Numbers
// Author: @nirajkrz
// Challenge: http://www.freecodecamp.com/challenges/bonfire-sum-all-odd-fibonacci-numbers
// Learn to Code at Free Code Camp (www.freecodecamp.com)

//Return the sum of all odd Fibonacci numbers up to and including the passed number if it is a Fibonacci number.
function sumFibs(num) {
  var prevNumber = 0;
    var currNumber = 1;
    var result = 0;
    while (currNumber <= num) {
        if (currNumber % 2 !== 0) {
            result += currNumber;
        }
        var added = currNumber + prevNumber;
        prevNumber = currNumber;
        currNumber = added;
    }

    return result;
}

sumFibs(4);