Is it ok if the resolver returns more data?

Question

Node.js

Hi all.

according to the scheme, the resolver should return {x, y}.

function normal() {
      return { x: 1, y: 2 };
    }

but i return {x, y, z}.

function normal() {
      return { x: 1, y: 2, z: 3 };
    }

this is normal? Or it can lead to problems, for example, with performance