const stationurl = 'https://ptx.transportdata.tw/MOTC/v2/Bike/Station/Tainan?$format=JSON';
const amounturl = 'https://ptx.transportdata.tw/MOTC/v2/Bike/Availability/Tainan?$format=JSON';

const  amountdata=fetch(amounturl)
  .then(res => res.json())
  .catch(err => console.log('error'));
const  stationinfo=fetch(stationurl)
  .then(res => res.json())
  .catch(err =>console.log('error'));