What does the map function always return?

The map function in most programming languages always returns a new array (or iterable object) containing the results of applying the provided callback function to each element of the original array (or iterable object).

Important:

• Does not modify the original array: map creates a new data structure.
• Always returns a new structure: Even an empty array/iterable object if the original was empty.
• Number of elements: The number of elements in the returned array/iterable object matches the number of elements in the original.