Collections and Composite Types

Appending to Slices

Slices can grow with append, returning an updated slice value.

Appending to Slices

slices_append.go 
package main

import "fmt"

func main() {
	var nextScore = 
	scores := []int{82, 91}
	updated := append(scores, nextScore)

	fmt.Println("before=", scores)
	fmt.Println("after=", updated)
	fmt.Println("length=", len(updated))
}

package main

import "fmt"

func main() {
	var nextScore = 
	scores := []int{82, 91}
	updated := append(scores, nextScore)

	fmt.Println("before=", scores)
	fmt.Println("after=", updated)
	fmt.Println("length=", len(updated))
}

package main

import "fmt"

func main() {
	var nextScore = 
	scores := []int{82, 91}
	updated := append(scores, nextScore)

	fmt.Println("before=", scores)
	fmt.Println("after=", updated)
	fmt.Println("length=", len(updated))
}
append `append` returns a slice that includes the added value.