What is the primary function of the formatDateTime function?

The formatDateTime function's primary role is to format dates for display. This function allows developers to take a date or datetime object and present it in a human-readable string format, tailored to the specific needs of the application or audience. By using formatDateTime, you can customize aspects such as the date and time order, inclusion of the time zone, and the overall presentation style. This is particularly useful for ensuring that date information is clear and appropriate for the user's locale or the context in which it is presented.

When it comes to manipulating or checking dates, other functions exist that target those needs, such as those that convert date formats, calculate time differences, or validate dates. However, formatDateTime is specifically about presentation, making it the go-to choice for displaying date and time information in a user-friendly manner.