Generators in python and javascript

finbocci.js

function* getFibonacci() {
  yield a = 0;
  b = 1;
  
  while (true) {
    yield b;
    b = a + b;
    a = b - a;
  }
}

for (num of getFibonacci()) {
  if (num > 100) {
    break;
  }
  console.log(num);
}

finnaboci.py

def getFibonacci():
  yield 0
  a, b = 0, 1

  while True:
    yield b
    b = a + b
    a = b - a

for num in getFibonacci():
  if num > 100:
    break
  print(num)

refactoredFibonacci.js

function* getFibonacci(n) {
  yield a = 0;
  b = 1;
  
  while (b < n) {
    yield b;
    b = a + b;
    a = b - a;
  }
}
console.log([...getFibonacci(100)])