sort: add Slice example

Change-Id: I34ba4eaf1d232b639998ad3bbb0d075dd097722b
Reviewed-on: https://go-review.googlesource.com/33763
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dominik Honnef <dominik@honnef.co>

diff --git a/src/sort/example_test.go b/src/sort/example_test.go
index f7372bec3754faeb0d3eb30fdabb8dad96886920..980c0d03680f53d6577e3e1a6f49895aa3124f5b 100644 (file)
--- a/src/sort/example_test.go
+++ b/src/sort/example_test.go
@@ -22,3 +22,22 @@ func ExampleReverse() {
        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}]
+}