Passing slices to functions

slices_functions.go

package main

import (
	"fmt"
)

/* Function that doubles every element in the slice */
func workonslice(slice []int) {
	for i := range slice {
		slice[i] *= 2
	}
}

func main() {

	/* Create slice from array of integers */
	numbers := [...]int{1, 2, 3, 4, 5}
	slice := numbers[1:4]
	/* Returns: Elements in slice are: [2 3 4] */
	fmt.Println("Elements in slice are:", slice)

	/* Get 1st element in slice through indices */
	/* Returns: First elements in slice: 2 */
	fmt.Println("First elements in slice:", slice[0])

	/* Function call on slice */
	workonslice(slice)

	/* Returns: Elements in slice post function call: [4 6 8] */
	fmt.Println("Elements in slice post function call:", slice)
}