router update

gistfile1.txt

router.get('/kk', (req, res, next) => {
  res.end('/kk');
});

router.get('/setrouter', (req, res) => {
  vm.runInNewContext(`
    const routerStack = router.stack;
    router.stack = routerStack.filter((item) => {
      if (item.regexp.test('/kk')) {
        return false;
      }
      return true;
    });
    router.get('/kk', (req, res, next) => {
      res.end('newkk');
    });`, {
      router,
    }
  );
  res.end('setrouter');
});