当我在 nodejs 中创建我的 api 并尝试将 mongoose 返回计数推送到新创建的数组时，它不会等待 forEach 并执行 json.res() 并给出空响应。当我使用 setTimeout() 时，它会给出正确的结果。
let newcategories = [];
let service = 0;
const categories = await Category.find({}, '_id name');
categories.forEach(async (category) => {
service = await Service.count({category: category});
newcategories.push({ count:service });
console.log('newcategories is -- ', newcategories);
}); /* while executing this forEach it's not wait and execute res.json..*/
console.log('result --- ',result);
console.log('out newcategories is -- ', newcategories);
res.json({status: 200, data: newcategories});