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Functions in Go
Golang Concepts
Go: Functions
Functions are very important part of Golang and one of Go's unusual features is that functions and methods can return multiple values as well.
here is an example of functions
package main
import "fmt"
func plus(a int, b int) int {
return a + b
}
func plusPlus(a, b, c int) int {
return a + b + c
}
func main() {
res := plus(1, 2)
fmt.Println("1+2 =", res)
res = plusPlus(1, 2, 3)
fmt.Println("1+2+3 =", res)
}
Multiple Return Values Functions
package main
import "fmt"
The (int, int) in this function signature shows that the function returns 2 ints.
func sumAndMultiply() (x int, y int) {
return x+y, x*y
}
func main() {
s, m := vals()
fmt.Println(s)
fmt.Println(m)
//If you only want a subset of the returned values, use the blank identifier _.
_, c := vals()
fmt.Println(c)
}
To Understand functions in details read this article Functions in Go