从Javascript对象中删除值

Question

So I have this object I get from mongoose, it's a user. I want to delete the hashed password field but I can't seem te remove it.

Tried the following:

apiRoutes.get('/user/:id', function(req, res, next) {
  User.findById(req.params.id, function(err, post) {
    if (err) return next(err);
    delete post['password'];
    res.json(post);
  });
});

There's definitely a password field there, when I debug/console.log the object it prints out the password.

EDIT: Solved it by passing an option to the mongoose call:

User.findById(req.params.id, '-password', function(err, post) { /* ... */ });

But still doesn't explain why delete doesn't work?

Answer 1

It seems like the object that mongoose returned wasn't an actual javascript object.

I had to convert it to an object in order to use basic functions on it:

apiRoutes.get('/user/:id', function (req, res, next) {
User.findById(req.params.id, function (err, post) {
    if (err) return next(err);
    post.toObject();
    delete post.password;
    res.json(post);
});