JavaScript: reference to own property

index.js

// Complex configuration object
var myObject = {
  property1: { id: 1, name: 'value property1', handler: data => data.length },
  get property2(){ return { ...this.property1, id: 2 } } // ref1
};

// > myObject.property2
// > {id: 2, name: "value property1", handler: f}






//-------------
// ref1: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/get

Another way:

  var state = (function(){
    return {
      property1: { id: 1, name: 'value property1' },
      property2: { ...this.property1, id: 2 },
    }
  }.bind(state)())