Szathmáry László honlapja @ DEIK | Nim2 / Grouping the input parameters

Consider this snippet:

func add(a: int, b: int): int =
a + b

echo add(2, 3) # 5

Since the input parameters have the same type, they can be grouped:

func add(a, b: int): int =
a + b

echo add(2, 3) # 5

Now both a and b have the same type (int).

How to add another group?

Groups are separated with a ';' (semicolon) on the formal parameter list:

func add(a, b: int; msg: string): int =
a + b

echo add(2, 3, "add two numbers") # 5

_{Actually, it would also work with a ',' (comma) instead of the semicolon. However, I find that harder to read.}