为什么我不能删除mongoose模型的对象属性？ [英] Why can't I delete a mongoose model's object properties?

问题描述

当用户向我的API注册时，会返回一个用户对象。在返回对象之前，我删除了散列密码和salt属性。我必须使用

When a user registers with my API they are returned a user object. Before returning the object I remove the hashed password and salt properties. I have to use

user.salt = undefined;
user.pass = undefined;

因为当我尝试

delete user.salt;
delete user.pass;

对象属性仍然存在并被返回。

the object properties still exist and are returned.

为什么？

推荐答案

要使用删除，你会需要通过调用 toObject 以便您可以自由操纵它：

To use delete you would need to convert the model document into a plain JavaScript object by calling toObject so that you can freely manipulate it:

user = user.toObject();
delete user.salt;
delete user.pass;

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