let persons = [ { name: 'Sergey', surname: 'Honcharenko', age: 28, isMarried: false, }, { name: 'Andrew', surname: 'Klymchuk', middleName: 'Anatoliyovych', haveAJob: true, }, { name: 'Alexander', surname: 'Slobodian', sex: 'male', hasAPet: false, } ] for (let key in persons) { console.log(persons[key].name, persons[key].surname); }