Functions

Functions are central in Go+. We’ll learn about functions with a few different examples.

Here’s a function that takes two ints and returns their sum as an int.

func plus(a int, b int) int {

Go+ requires explicit returns, i.e. it won’t automatically return the value of the last expression.

 return a + b }

When you have multiple consecutive parameters of the same type, you may omit the type name for the like-typed parameters up to the final parameter that declares the type.

func plusPlus(a, b, c int) int { return a + b + c }

Call a function just as you’d expect, with name(args).

res := plus(1, 2) println "1+2 =", res res = plusPlus(1, 2, 3) println "1+2+3 =", res

Next example: Multiple Return Values