Is there an easier way to assign this variable with object destructuring?

Question

const user = new db.User({
        firstName: req.body.firstName,
        lastName: req.body.lastName,
        password: req.body.password,
        email: req.body.email,
        dateCreated: req.body.dateCreated
    })

I know there's a way to assign values to an object by giving the attributes the same name as their source but I'm not sure how this would work.

Answer 1

You could deconstruct all of these values above to simplify it:

const { firstName, lastName, password, email, dateCreated } = req.body

Then all you would need to do is the following:

const user = new db.User({
    firstName,
    lastName,
    password,
    email,
    dateCreated,
})

Answer 2

You could also do it as a functional one-liner, but even in this case you still have to repeat property names.

const user = new db.User(
  (({firstName, lastName, password, email, dateCreated}) =>
   ({firstName, lastName, password, email, dateCreated}))(req.body)
);

Answer 3

It seems like a good use case for Automapper. It will map like names and can collapse variables.
http://automapper.org/