Question

How to reverse a string in Go

Answer 1

package main 
  
import "fmt"
  
func reverse(s string) (result string) { 
    for _, ch := range s { 
        result = string(ch) + result 
    } 
    return
} 
  
func main() { 
    s := "golang"
  
    rev := reverse(s) 
	
    fmt.Println(rev) 
} 
   
   
     
/*
run:
     
gnalog
     
*/

 

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Answer 2

package main 
  
import "fmt"
  
func reverse(s string) (result string) { 
    rns := []rune(s) 
    for i, j := 0, len(rns)-1; i < j; i, j= i+1, j-1 { 
        rns[i], rns[j] = rns[j], rns[i] 
    } 
    return string(rns) 
} 
  
func main() { 
    s := "golang"
  
    rev := reverse(s) 
	
    fmt.Println(rev) 
} 
   
   
     
/*
run:
     
gnalog
     
*/

 

70+ SQL courses for beginners and professionals