How to remove a key value pair from mongodb when updating findOne result?

Question

user.findOne(params,(err,user){   
    if(user){  
        user.password=password;
        delete user['otp'];
        user.save(callback);
    }
})

my user model has the following fields

I want to remove a field otp

on update password

i.e. db should be userid

and password

after renovation

+3

Madhvesh s 09 June 17 at 12:12

1 answer

Daksh shah · Accepted Answer · 2017-06-09T12:34:45+0000

To remove a key otp

from your document by setting the path to undefined

and save it, follow these steps:

user.findOne(params, (err, user){
  if (user) {
    user.password = password;
    user.otp = undefined;
    user.save(callback);
  }
});