let descriptions;
const originalObject = {
nestedObject: { description: 'Foo!' },
description: 'Bar!',
};
// this doesn't create a new object!
const reference = originalObject;
reference.description = 'Baz!';
// so now the original description is Baz! and `reference` is just a reference to `originalObject`
descriptions = `${originalObject.description} ${reference.description}`;