src/sort/example_test.go

// Copyright 2011 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 sort_test

import (
	"fmt"
	"sort"
)

func ExampleInts() {
	s := []int{5, 2, 6, 3, 1, 4} // unsorted
	sort.Ints(s)
	fmt.Println(s)
	// Output: [1 2 3 4 5 6]
}

func ExampleReverse() {
	s := []int{5, 2, 6, 3, 1, 4} // unsorted
	sort.Sort(sort.Reverse(sort.IntSlice(s)))
	fmt.Println(s)
	// Output: [6 5 4 3 2 1]
}

func ExampleSlice() {
	people := []struct {
		Name string
		Age  int
	}{
		{"Gopher", 7},
		{"Alice", 55},
		{"Vera", 24},
		{"Bob", 75},
	}
	sort.Slice(people, func(i, j int) bool { return people[i].Name < people[j].Name })
	fmt.Println("By name:", people)

	sort.Slice(people, func(i, j int) bool { return people[i].Age < people[j].Age })
	fmt.Println("By age:", people)
	// Output: By name: [{Alice 55} {Bob 75} {Gopher 7} {Vera 24}]
	// By age: [{Gopher 7} {Vera 24} {Alice 55} {Bob 75}]
}