Discussion on: Don't stop Mutating

Sometimes, we fetch data from MongoDB, and deleting a bit of data is easier done on the backend than it is through aggregation piplelines.

Yeah, maybe it's easier to do in frontend. BUT you need to do in BACKEND. For the sake of security and performance. Right?

If the mutation is abstracted away, there is no issue (my getUsersWithoutProjects example)

I already said that I agree on getUsersWithoutProjects.

The problem lies in this one:

const users = fetchUsers(100);

for (let i = 0; i < users.length; i++) {
  delete users[i].age;
}