ReferenceError: Cannot access 'obj' before initialization

Question

I have this object:

const obj = {
  thing: 5,
  layer: {
    otherThing: obj.thing - 2
  }
}

error:

ReferenceError: Cannot access 'obj' before initialization

I tried to use this but it didn't work as expected.

Answer 1

This is not something you can do in JavaScript. But you have two possible alternatives here:

1)

    const obj = {thing: 5, layer: {}};
    obj.layer.otherThing = obj.thing - 2;

2) getters

    const obj = {
       thing: 5,
       layer: {
          get otherThing(){obj.thing - 2}
       }
    }