Intermediate Algorithm Scripting - Sum All Odd Fibonacci Numbers

JavaScript
1

Tell us what’s happening:
Describe your issue in detail here.
i dont know what is wrong !!
Your code so far

function sumFibs(num) {
  let fiboNums = [1,1];
  let nextFibo = (fiboNums[fiboNums.length-2]+fiboNums[fiboNums.length-1]);
  for (let i = 0; i < num; i++){
    fiboNums.push(nextFibo);
    (fiboNums[fiboNums.length-2]+fiboNums[fiboNums.length-1]);
  }
  console.log(num);
  return fiboNums.filter(element => element%2 !==0).reduce((a,b) => a+b);
}

sumFibs(4);

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Challenge: Intermediate Algorithm Scripting - Sum All Odd Fibonacci Numbers

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2

I don’t think this loop does what you want. You are computing the first num Fibonacci numbers, not the Fibonacci numbers less than or equal to num.

1 Like
3

Oh thank You I got it … I used while loop instead however i wanted to know if i can solve it by for loop as well . As I think while loops can be converted into For loop.

function sumFibs(num) {
  let fiboNums = [1,1];
  let nextFibo = (fiboNums[fiboNums.length-2]+fiboNums[fiboNums.length-1]);
  while ( nextFibo <= num) {
    fiboNums.push(nextFibo);
    nextFibo = (fiboNums[fiboNums.length-2]+fiboNums[fiboNums.length-1]);
  }
  console.log(num);
  return fiboNums.filter(element => element%2 !==0).reduce((a,b) => a+b);
}

sumFibs(4);
4

You could write it with a for loop, sure. You could also solve it with a singe loop and no array.

1 Like
5

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