Pass Arguments By Reference with Slice in Golang

Application

Create new folder named src. In src folder, create new file named main.go as below:

package main

import "fmt"

func main() {

	var a = [3]int{4, 1, -2}

	ChangeValueWithArray(a)
	fmt.Println("Change Value with Array")
	fmt.Println("a: ", a)

	fmt.Println("Change Value with Slice")
	ChangeValueWithSlice(a[:])
	fmt.Println("a: ", a)

}

func ChangeValueWithArray(a [3]int) {
	a[1] = 999
}

func ChangeValueWithSlice(slice []int) {
	slice[1] = 999
}

Output

Open Terminal windows in Visual Studio Code and run command line: go run main.go

Change Value with Array
a: [4  1  -2]

Change Value with Slice
a: [4  999  -2]