t002.js

function fibonacci() {
  let [prev, curr] = [0, 1];
  for (;;) {
    [prev, curr] = [curr, prev + curr];
    yield curr;
  }
}

function take(n, gen) {
  for (let i = 0; i < n; ++i) {
    yield gen.next();
  }
}

let numbers = [n for (n of take(10, fibonacci()))];
print(numbers);