odd-fibonacci-numbers.js

function fib(maximum){
	var n0 = 1, n1 = 2, next = 0, sum = 1;
	console.log(n0, n1)
	next = n0 + n1;
	while(next < maximum){
		n0 = n1; n1 = next;
		if(next % 2 !== 0){
			sum = sum + next;
		}
		next = n0 + n1;
	}

	return sum;
}

console.log(fib(2000000))