Intermediate Exercism • go

Reverse String

Challenge Overview

Reverse a given string.

Introduction

Reversing strings (reading them from right to left, rather than from left to right) is a surprisingly common task in programming.

For example, in bioinformatics, reversing the sequence of DNA or RNA strings is often important for various analyses, such as finding complementary strands or identifying palindromic sequences that have biological significance.

Instructions

Your task is to reverse a given string.

Some examples:

Turn "stressed" into "desserts".
Turn "strops" into "sports".
Turn "racecar" into "racecar".

Source: Exercism go/reverse-string

💡 View Solution

package reverse

func Reverse(s string) string {
    runes := []rune(s)
    for i, j := 0, len(runes)-1; i < j; i, j = i+1, j-1 {
        runes[i], runes[j] = runes[j], runes[i]
    }
    return string(runes)
}