Why isn't running?

JavaScript
1

Tell us what’s happening:
Describe your issue in detail here.

  **Your code so far**


const fiboEvenSum = (number) => {
if (number <= 1) {
  return 0;
}else {
  let evenSum = 0;
  prevFibNum = 1;
  fibNum = 2 ;
for (let i = 2; fibNum <= number; i++){
  if (fibNum % 2 == 0){
    evenSum += fibNum;
  }
  [prevFibNum,fibNum] = [fibNum, prevFibNum + fibNum];
}
return evenSum;
}
};

  **Your browser information:**

User Agent is: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:93.0) Gecko/20100101 Firefox/93.0

Challenge: Problem 2: Even Fibonacci Numbers

Link to the challenge:

2

These must also be declared.

3

Wow thanks, it worked, that was simple