How to Sort Characters in String in Go - Step by Step Examples

How to Sort Characters in String in Go ?

Answer

In Go, you can sort characters in a string by converting the string to a slice of runes, sorting the slice, and then converting it back to a string.

✐ Examples

1 Sort Characters in Ascending Order

In this example,

We create a string named str.
We convert the string to a slice of runes using []rune(str).
We sort the slice of runes in ascending order using sort.Slice with a custom comparator function.
We convert the sorted slice of runes back to a string using string() conversion.
Finally, we print the sorted string in ascending order.

Go Program

package main

import (
	"fmt"
	"sort"
)

func main() {
	str := "hello world"
	runes := []rune(str)
	sort.Slice(runes, func(i, j int) bool {
		return runes[i] < runes[j]
	})
	sortedStr := string(runes)
	fmt.Println("Sorted string in ascending order:", sortedStr)
}

Output

Sorted string in ascending order:  dehllloorw

2 Sort Characters in Descending Order

In this example,

We create a string named str.
We convert the string to a slice of runes using []rune(str).
We sort the slice of runes in descending order using sort.Slice with a custom comparator function.
We convert the sorted slice of runes back to a string using string() conversion.
Finally, we print the sorted string in descending order.

Go Program

package main

import (
	"fmt"
	"sort"
)

func main() {
	str := "hello world"
	runes := []rune(str)
	sort.Slice(runes, func(i, j int) bool {
		return runes[i] > runes[j]
	})
	sortedStr := string(runes)
	fmt.Println("Sorted string in descending order:", sortedStr)
}

Output

Sorted string in descending order: wroolllhed

Summary

In this tutorial, we learned How to Sort Characters in String in Go language with well detailed examples.

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How to Sort Characters in String in Go - Step by Step Examples

How to Sort Characters in String in Go ?

Answer

✐ Examples

1 Sort Characters in Ascending Order

Go Program

Output

2 Sort Characters in Descending Order

Go Program

Output

Summary

More Go Strings Tutorials