{
  name: 'John',
  age: 30,
  hobbies: [ 'reading', 'coding' ],
  address: { city: 'New York', country: 'USA' },
  toString: [Function: toString]
}
{
  address: [Object],
  age: 30,
  hobbies: [Array],
  name: 'John',
  toString: [Function]
}
<ref *1> { name: 'Circular', self: [Circular *1] }