|

1
2
3
4
5
6
7
8
9
10
fn fibonacci (n) {
  if |n <= 2| { return 1 }
  let prev = 1; let curr = 1;
  from 2 to n with i {
    let next_value = prev + curr
    prev = curr 
    curr = next_value
  }
  return curr
}