// demostrating spread //
let application = {
    'name': 'devApp',
    'version' : '1.0',
    'email': 'app@gmail.com'
}

let duplicateCopy = { ...application };

// change the code
application.email = "new@gmail.com";
console.log('application object');
console.log(application);
console.log('shallow copy object');
console.log(duplicateCopy); // still retains app@gmail.com NOT new@gmail.com