An Exact Fibonacci Generator
Write fibonacci(): a generator that yields 0, 1, 1, 2, 3, 5, ... forever, exactly — the 100th value must be right to the last digit.
const it = fibonacci(); it.next().value, it.next().value, it.next().value // 0, 1, 1
The grader takes as many values as each test needs and compares them as strings.
Hints
Hint 1
Keep the last two values and yield in an infinite loop: yield a; [a, b] = [b, a + b].
Hint 2
Past the 78th term, JavaScript numbers lose precision. Use BigInt (0n, 1n), or Python's integers, which never overflow.