How-to articles, tricks, and solutions about VARIADIC-FUNCTIONS

What do 3 dots next to a parameter type mean in Java?

In Java, the three dots (...) next to a parameter type indicate that the parameter is a varargs parameter.

What does ** (double star/asterisk) and * (star/asterisk) do for parameters?

In Python, the double star (**) is used to denote an "unpacking" operator, which allows you to unpack a dictionary or other iterable data type into keyword arguments in a function call.