var MyObject = {

  description: 'Creates a deep copy of source, which should be an object or an array.',

  myNumber: 123456789,

  myBoolean: true,

  jayson: {

    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',

    parse: 'JSON.parse() method parses a JSON string...'

  }

};

​

let nextItem = MyObject;

for (let i = 0; i<10; i++) {

  nextItem.child = JSON.parse(JSON.stringify(MyObject));

  nextItem = nextItem.child;

}

​

var myCopy = null;