Answers for "reverse string"

javascript reverse a string

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

javascript string reverse

"this is a test string".split("").reverse().join("");
//"gnirts tset a si siht"

// Or
const reverse = str => [...str].reverse().join('');

// Or
const reverse = str => str.split('').reduce((rev, char)=> `${char}${rev}`, '');

// Or
const reverse = str => (str === '') ? '' : `${reverse(str.substr(1))}${str.charAt(0)}`;

// Example
reverse('hello world');     // 'dlrow olleh'

reverse string in python

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

reverse a string javascript

//with built-in method
let string = "We are going to reverse a string with built-in method.";
let reversed = string.split("").reverse().join("");
console.log(reversed);

//with the for loop
let string = "We are going to reverse a string with the for loop.";
function reverse (string){
  let reversed = "";
  for(let char of string){
    reversed = char + reversed;
  }
  return reversed;
}
console.log(reverse(string));

//with the spread operator
let string = "We are going to reverse a string with the spread operator.";
let reversed = [...string].reverse().join("");
console.log(reversed);

//with iteration
let string = "We are going to reverse a string with iteration.";
function reverse(string) {
  for (var reversed = "", i = string.length - 1; i >= 0; i--) {
    reversed += string[i];
  }
  return reversed;
console.log(reverse(string));

reverse string

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

reverse string

 
#include <iostream>
#include <algorithm> 
using namespace std; 
int main() 
{ 
    string str = "Lap trinh khong kho"; 
  
    // Reverse str[beign..end] 
    reverse(str.begin(), str.end()); 
  
    cout << str; 
    return 0; 
}