Implement extend resource create a new object with added property

While we have a resource for setting a value in an array (set resource), I think we don’t have such for objects.

It is up to discussion whether a new resource should be created or rather set should be extended to work for objects.

[mhagmajer]

Because of data mutability we need to support extend for objects.

let a = { firstName: 'John' }
let b = extend(a, { lastName: 'Smith' }

should return { firstName: 'John', lastName: 'Smith' }

[czerwinskilukasz1]

Yes, I know. That’s why I wrote ‘change’ in italics. Anyways, you answered my question: yes, extend will also work on a key that is already defined. So using extend could be a workaround for updating a value in a map. Anyway, don’t we need a set resource for maps?