blog/content/slices/prog150.go

// +build OMIT

// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package main

import (
	"fmt"
)

func main() {
	// START OMIT
	// Create a couple of starter slices.
	slice := []int{1, 2, 3}
	slice2 := []int{55, 66, 77}
	fmt.Println("Start slice: ", slice)
	fmt.Println("Start slice2:", slice2)

	// Add an item to a slice.
	slice = append(slice, 4)
	fmt.Println("Add one item:", slice)

	// Add one slice to another.
	slice = append(slice, slice2...)
	fmt.Println("Add one slice:", slice)

	// Make a copy of a slice (of int).
	slice3 := append([]int(nil), slice...)
	fmt.Println("Copy a slice:", slice3)

	// Copy a slice to the end of itself.
	fmt.Println("Before append to self:", slice)
	slice = append(slice, slice...)
	fmt.Println("After append to self:", slice)
	// END OMIT
}