Object Descriptors & Property Flags

What will the console display for a non-enumerable property access?

const user = {};
Object.defineProperty(user, 'name', {
  value: 'John',
  enumerable: false
});

console.log(user.name);
console.log(Object.keys(user));

'John' and ['name']
'John' and []
The output will be 'John' and an empty array [] because: 1) The property 'name' exists and is accessible directly via user.name, returning 'John', 2) However, since enumerable is set to false, the property is hidden from enumeration methods, 3) Object.keys() only returns enumerable own properties, so it returns an empty array, 4) The property is still accessible directly when you know its name, 5) This pattern is often used for internal properties that shouldn't appear in serialization or iteration, 6) This behavior is similar to many built-in object methods which are non-enumerable.
undefined and []
undefined and ['name']

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