const datas = idList  .map(id => url+'/id')  .map(url => fetch(url).then(res => res.json()));const p = new Promise.all(datas)  .then(data => {...})const datas = idList  .map(id => url+'/id')  .map(url => fetch(url).then(res => res.json()));const foo = await Promise.all(datas);const series = foo.map(data => {...})