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function *fibonaciSeries(){
  let first = 0;
  let second = 0;
  let third = 0;
  let i = 0;
  while(true) {
    if(i== 0 || i==1) {
      first = 1;
      second =1;
      third = 1;
    } else {
       first = second;
       second = third;
      third = first + second;
    }
    i+=1;
    yield third;
  }
}

fibo = fibonaciSeries();

for(let i=0; i< 10; i++) {
  val = fibo.next();
  console.log(val.value);
}

You can call infinite loop or call .next() as much you want