how to object value to its on property object?

Question

how to object value to its on property object ?

I tried like this

var obj = {
 a:2,
 b:this.a   
}

Then try obj.b it is giving undefined ..can I make function in object?

Expected output 2

Answer 1

const obj = {
  a: 2,
  get b() {
    return this.a;
  }
};

console.log(obj.b);

const obj2 = {
  a: 2,
  b: function() {
    return this.a;
  }
};

console.log(obj2.b());

See it in action: https://jsfiddle.net/rqnbxw86/