Functions and Multiple Returns

Functions in Go are first-class citizens. They can return multiple values and be passed around as variables.

func add(a int, b int) int {
    return a + b
}

Multiple return values:

func divide(a, b int) (int, int) {
    return a / b, a % b
}

quotient, remainder := divide(10, 3)

Anonymous functions:

greet := func(name string) {
    fmt.Println("Hello,", name)
}
greet("Go")