Maps where non-serializable values (functions, objects, symbols) are stored as keys with their corresponding array indexes as values.
It is used to convert data to a serializable format that can be passed between Node.js and Web environments (and vice versa).
Maps where non-serializable values (functions, objects, symbols) are stored as keys with their corresponding array indexes as values. It is used to convert data to a serializable format that can be passed between Node.js and Web environments (and vice versa).