How do I reference the same Object’s properties during its creation? [duplicate]

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This is ancient history now, but I just learned about getters and setters, which are perfect for your situation, and I’m sure people looking at this issue could get some value from it..

o = {
  a: { foo: 42 },
  get b() {
    return this.a
    }
  }

console.log(o.b) // => { foo: 42 }

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