reverse string

1function reverseString(s){
2    return s.split("").reverse().join("");
3}
4reverseString("Hello");//"olleH"

1"this is a test string".split("").reverse().join("");
2//"gnirts tset a si siht"
3
4// Or
5const reverse = str => [...str].reverse().join('');
6
7// Or
8const reverse = str => str.split('').reduce((rev, char)=> `${char}${rev}`, '');
9
10// Or
11const reverse = str => (str === '') ? '' : `${reverse(str.substr(1))}${str.charAt(0)}`;
12
13// Example
14reverse('hello world');     // 'dlrow olleh'

1'hello world'[::-1]
2'dlrow olleh'

1public class ReverseString {
2    public static void main(String[] args) {
3        String s1 = "neelendra";
4        for(int i=s1.length()-1;i>=0;i--)
5            {
6                System.out.print(s1.charAt(i));
7            }
8    }
9}

1def reverse_string(str):
2  return str[::-1]
3print(reverse_string("This string is reversed!"))

1 
2#include <iostream>
3#include <algorithm> 
4using namespace std; 
5int main() 
6{ 
7    string str = "Lap trinh khong kho"; 
8  
9    // Reverse str[beign..end] 
10    reverse(str.begin(), str.end()); 
11  
12    cout << str; 
13    return 0; 
14}
15 
16