Question

98

rated 0 times [ 99] [ 1] / answers: 1 / hits: 17048 / 5 Years ago, sun, november 3, 2019, 12:00:00

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.

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answered 5 Years ago hasanb · Accepted Answer

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}

       }

    }