Slice function

Slices are passed by referring to functions. Big slices can be passed to functions without impacting performance. Passing a slice as a reference to a function is demonstrated in the code as follows (slices.go):

//twiceValue method given slice of int type
func twiceValue(slice []int) {
 var i int
 var value int
for i, value = range slice {
 slice[i] = 2*value
 }
 }
// main method
func main() {
 var slice = []int{1,3,5,6}
 twiceValue(slice)
 var i int
 for i=0; i< len(slice); i++ {
 fmt.Println(“new slice value”, slice[i])
}
}

Run the following command:

go run slices.go

The following screenshot displays the output:

Now that we know what slices are, let's move on to two-dimensional slices in the next section.