猫鼬模型中的model和model._doc有什么区别？

Question

I'm new to java script and I'm building a graphql API with mongoose and when I want to return a result of myModel.find() using mongoose I see that there is a difference between model and model._doc . in this code

return {
    ...model._doc
}

everything is OK and can get the result but when I code like this

return{
    ...model
}

I get an error when I want to retrieve the data. when I print them they are exactly the same as I see.

Answer 1

The model object is a mongoose object and not a normal JSON object, and to get data from the model object you should use toJSON method.

_doc is an internal property and you shouldn't be using it, if they changed it your application will break.

model.toJSON()