Which choice correctly describes the effect of using Object.keys on a newly created object?

Using Object.keys on a newly created object returns an array of the object's keys. When you create an object in JavaScript, it is initialized without any properties—essentially, it is empty. For example, if you define an object like this: const myObject = {};, it contains no keys or properties.

When you apply Object.keys to myObject, it retrieves all the enumerable property names (keys) of the object. Since the object has no properties, the outcome will be an empty array, represented as []. This behavior illustrates that Object.keys provides a straightforward way to list out the keys present in an object, which is especially useful for iteration or manipulation of objects where you need to understand their structure.

On the other hand, options that mention returning values, the object itself as an array, or returning undefined do not align with the function's intended purpose. The primary role of Object.keys is to extract the keys from an object, making the correct understanding of its function critical for effective JavaScript coding and data manipulation.