lodashAt.js

// Can handle only simple keys
const logValues1 = (obj, keys) => {
    keys.forEach(key => console.log(obj[key]));
}

// Can handle complex keys
const logValues2 = (obj, keys) => {
    keys.forEach(key => console.log(_.at(obj, key)));
}

const data = { user: { name: 'Vadim', age: 29 }};

// This don't working
logValues1(data, ['user.name', 'user.age']);
// This working
logValues2(data, ['user.name', 'user.age']);