How to Sort Items of a Set in Go - Step by Step Examples

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How to Sort Items of a Set in Go ?

Answer

To sort items of a Set in Go, you can convert the Set to a slice and use the sort package.

✐ Examples

1 Sort Items of a Set of Numbers

In this example,

We create a Set named numberSet using a map where the keys represent the numbers.
We extract the numbers from the Set and store them in a slice numbers.
We then sort the slice numbers using the sort.Ints() function from the sort package.
Finally, we print the sorted slice to the console.

Go Program

package main

import (
	"fmt"
	"sort"
)

func main() {
	numberSet := map[int]struct{}{5: {}, 3: {}, 8: {}, 1: {}, 2: {}}
	numbers := make([]int, 0, len(numberSet))
	for num := range numberSet {
		numbers = append(numbers, num)
	}
	sort.Ints(numbers)
	fmt.Println("Sorted slice:", numbers)
}

Output

Sorted slice: [1 2 3 5 8]

2 Sort Items of a Set of Strings

In this example,

We create a Set named stringSet using a map where the keys represent the strings.
We extract the strings from the Set and store them in a slice strings.
We then sort the slice strings using the sort.Strings() function from the sort package.
Finally, we print the sorted slice to the console.

Go Program

package main

import (
	"fmt"
	"sort"
)

func main() {
	stringSet := map[string]struct{}{"banana": {}, "apple": {}, "cherry": {}, "date": {}}
	strings := make([]string, 0, len(stringSet))
	for str := range stringSet {
		strings = append(strings, str)
	}
	sort.Strings(strings)
	fmt.Println("Sorted slice:", strings)
}

Output

Sorted slice: [apple banana cherry date]

Summary

In this tutorial, we learned How to Sort Items of a Set in Go language with well detailed examples.

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