function* f() {
yield* '893';
}
const iterator = f();
console.log(iterator.next());
console.log(iterator.next());
console.log(iterator.next());
console.log(iterator.next());
/*
run:
{
done: false,
value: "8"
}
{
done: false,
value: "9"
}
{
done: false,
value: "3"
}
{
done: true,
value: undefined
}
*/