使用next.js开发网址缩短服务的方法

function string10to62(number) {
 var chars = '0123456789abcdefghigklmnopqrstuvwxyzABCDEFGHIGKLMNOPQRSTUVWXYZ'.split(''),
  radix = chars.length,
  qutient = +number,
  arr = [];
 do {
  let mod = qutient % radix;
  qutient = (qutient - mod) / radix;
  arr.unshift(chars[mod]);
 } while (qutient);
 return arr.join('');
}

import { useRouter } from 'next/router';
const router = useRouter();
const { slug } = router.query;

db.findOne({ slug: slug }, function (err, doc) {
 if(doc!=null){
  window.location.href=doc.url;
 }
});