Go by Example: Functions

Go by Example : Functions

Functions are central in Go. We’ll learn about functions with a few different examples.
	`package main`
	`import "fmt"`
Here’s a function that takes two `int`s 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 }`
	`func main() {`
Call a function just as you’d expect, with `name(args)`.	`res := plus(1, 2) fmt.Println("1+2 =", res)`
	`res = plusPlus(1, 2, 3) fmt.Println("1+2+3 =", res) }`

	`$ go run functions.go 1+2 = 3 1+2+3 = 6`
There are several other features to Go functions. One is multiple return values, which we’ll look at next.