Variadic Functions

Variadic functions can be called with any number of trailing arguments. For example, fmt.Println() is a variadic function.

An example of a function signature that will take an arbitrary number of ints as arguments func sum(nums ...int){}; also this function doesn't return anything.

Variadic function can be called the usual way with individual arguments. If there are multiple args in a slice, apply them to a variadic function using func(slice...)