Fibbonaci sequence finder in Io

fibbonaci.io

main := Object clone
main fb := method(num,
  i := 1
  last := 0
  fib := 0
  current := 0
  i println
  while(fib != num,
    fib = fib + 1

    current = i
    i = i + last // 1 + 0
    last = current
    
    i println
  )

  return i
)

main fb(3)