使用console.log时如何隐藏对象上的某些键

Question

Okay, I'm fairly new to javascript and node so this question might sound stupid to you, but I really need an enlightenment. Anyway, I have an object that I got from my mongoose. Let's make an example

Model.findOne({name:'John'}).exec(function (err, data){
 console.log(data);
});

So, when I console.loged the data the result was

{ _id: 613614asdfa6115, name: 'John', __v: 0 }

Then, I had a stupid idea to add another key to that object, so, as a normal javascript noob would do, I add another key to the data:

data.hello = 'hi'

BUT , when I try to console.log the data the result was still the same. I was so baffled. So I used the lodash clone to clone the object; to my surprise there were a lot of hidden keys that the first console.log did not get.

Here is the result of the cloned object: http://pastebin.com/zE71Fg2H

My question is: How did they hide some of the keys from the console.log?

Answer 1

try this -

Model.findOne({name:'John'}).exec(function (err, data){
 data = data.toObject();
 data.hello = 'hi'
 console.log(data);
});

I hope it will work. For more information use this link.