Sorting #

// Go's `slices` package implements sorting for builtins
// and user-defined types. We'll look at sorting for
// builtins first.

package main

import (
	"fmt"
	"slices"
)

func main() {

	// Sorting functions are generic, and work for any
	// _ordered_ built-in type. For a list of ordered
	// types, see [cmp.Ordered](https://pkg.go.dev/cmp#Ordered).
	strs := []string{"c", "a", "b"}
	slices.Sort(strs)
	fmt.Println("Strings:", strs)

	// An example of sorting `int`s.
	ints := []int{7, 2, 4}
	slices.Sort(ints)
	fmt.Println("Ints:   ", ints)

	// We can also use the `slices` package to check if
	// a slice is already in sorted order.
	s := slices.IsSorted(ints)
	fmt.Println("Sorted: ", s)
}

$ go run sorting.go
Strings: [a b c]
Ints:    [2 4 7]
Sorted:  true