79 lines
1.9 KiB
Go
79 lines
1.9 KiB
Go
// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package sort_test
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import (
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"fmt"
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"sort"
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)
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func ExampleInts() {
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s := []int{5, 2, 6, 3, 1, 4} // unsorted
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sort.Ints(s)
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fmt.Println(s)
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// Output: [1 2 3 4 5 6]
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}
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func ExampleReverse() {
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s := []int{5, 2, 6, 3, 1, 4} // unsorted
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sort.Sort(sort.Reverse(sort.IntSlice(s)))
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fmt.Println(s)
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// Output: [6 5 4 3 2 1]
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}
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func ExampleSlice() {
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people := []struct {
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Name string
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Age int
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}{
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{"Gopher", 7},
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{"Alice", 55},
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{"Vera", 24},
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{"Bob", 75},
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}
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sort.Slice(people, func(i, j int) bool { return people[i].Name < people[j].Name })
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fmt.Println("By name:", people)
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sort.Slice(people, func(i, j int) bool { return people[i].Age < people[j].Age })
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fmt.Println("By age:", people)
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// Output: By name: [{Alice 55} {Bob 75} {Gopher 7} {Vera 24}]
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// By age: [{Gopher 7} {Vera 24} {Alice 55} {Bob 75}]
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}
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func ExampleSliceStable() {
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people := []struct {
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Name string
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Age int
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}{
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{"Alice", 25},
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{"Elizabeth", 75},
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{"Alice", 75},
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{"Bob", 75},
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{"Alice", 75},
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{"Bob", 25},
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{"Colin", 25},
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{"Elizabeth", 25},
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}
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// Sort by name, preserving original order
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sort.SliceStable(people, func(i, j int) bool { return people[i].Name < people[j].Name })
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fmt.Println("By name:", people)
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// Sort by age preserving name order
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sort.SliceStable(people, func(i, j int) bool { return people[i].Age < people[j].Age })
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fmt.Println("By age,name:", people)
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// Output: By name: [{Alice 25} {Alice 75} {Alice 75} {Bob 75} {Bob 25} {Colin 25} {Elizabeth 75} {Elizabeth 25}]
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// By age,name: [{Alice 25} {Bob 25} {Colin 25} {Elizabeth 25} {Alice 75} {Alice 75} {Bob 75} {Elizabeth 75}]
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}
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func ExampleStrings() {
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s := []string{"Go", "Bravo", "Gopher", "Alpha", "Grin", "Delta"}
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sort.Strings(s)
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fmt.Println(s)
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// Output: [Alpha Bravo Delta Go Gopher Grin]
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}
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