Object method serialisation while keeping the `this` reference intact

serialisation.js

'use strict';

let person = {
  name: 'Adrian',
  age: 28,
  sayName: function() {
    console.log(`My name is ${this.name}`);
    console.log(this); // this should log out our `person` object
  }
};

let replacer = (k, v) => {
  if (typeof v === 'function') {
    return v.toString();
  }

  return v;
} 

let strPerson = JSON.stringify(person, replacer, 2);

console.log(strPerson);

let reviver = (k, v) => {
  if (typeof v === 'string' && v.indexOf('function ') === 0) {
    return eval(`(${v})`);
//     return Function(`(${v}).call(this)`);
  }

  return v;
}

let objPerson = JSON.parse(strPerson, reviver);

console.log(objPerson);

objPerson.sayName(); // should also print the person clone(objPerson) as being the `this` reference
objPerson === person;