Câu hỏi

const a = {
  stringField: 'Joe',
  numberField: 123,
  dateField: new Date('1995-12-17T03:24:00'),
  nestedField: { field: 'Nested' }
};

const b = JSON.parse(JSON.stringify(a));

console.log(
  a.stringField === b.stringField,
  a.numberField === b.numberField,
  a.dateField === b.dateField,
  a.nestedField.field === b.nestedField.field
);