Mongoose TypeError: User is not a constructor

Question

I\'m trying to add a subdocument to a parent schema with Mongoose and MongoDB however I\'m being thrown the following error:

TypeError: User is not a constru         


        

Answer 1

JavaScript is case sensitive about the variable names. You have User model and the User result with the same name.

Your code will work with the following change :

   User.findById(id , function (err, user) {
/*                                   ^ use small `u` */
       if (err) return handleError(err)

/* rest of your code */

Also keep in mind that further in your code you are declaring another variable named user. You will need to change that to something different.