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How do you reverse a string in place (or in-place) in JavaScript when passed to a function with a return statement? All without using the built-in functions? .reverse(), .charAt(), etc.

Converting String into Bytes: getBytes() method is used to convert the input string into bytes[].Method:

1. Create a temporary byte[] of length equal to the length of the input string.
2. Store the bytes (which we get by using getBytes() method) in reverse order into the temporary byte[] .
3. Create a new String abject using byte[] tostore result.

Source

// Java program to ReverseString using ByteArray. import java.lang.*; import java.io.*; import java.util.*; // Class of ReverseString class ReverseString {     public static void main(String[] args)     {         String input = "Geeks";         // getBytes() method to convert string          // into bytes[].         byte [] strAsByteArray = input.getBytes();         byte [] result =                     new byte [strAsByteArray.length];         // Store result in reverse order into the         // result byte[]         for (int i = 0; i<strAsByteArray.length; i++)             result[i] =               strAsByteArray[strAsByteArray.length-i-1];         System.out.println(new String(result));     } } 

I expect the output to be : skeg

Say you have this string:

ABCDEFGH

And you want to reverse it so that it becomes:

GHEFCDAB

What would be the most efficient / pythonic solution? I've tried a few different things but they all look horrible...

Thanks in advance!

Update:

In case anyone's interested, this wasn't for homework. I had a script that was processing data from a network capture and returning it as a string of hex bytes. The problem was the data was still in network order. Due to the way the app was written, I didn't want to go back through and try to use say socket.htons, I just wanted to reverse the string.

Unfortunately my attempts seemed so hideous, I knew there must be a better way (a more pythonic solution) - hence my question here.

I have List<String> list = Arrays.asList("A", "B", "C");
I want to join all string inside list with delimiter , in reverse order :

//resultString joinedString = "C,B,A";

what is the best approach to achieve this?
currently I use index loop :

String joinedString = "";List<String> list = Arrays.asList("A", "B", "C");for (int i = list.size() - 1; i >= 0; i--) {     String string = list.get(i);     joinedString = joinedString + string + ",";}//to remove ',' from the last stringif(joinedString.length() > 0) {    joinedString = joinedString.substring(0, joinedString.length() - 1);}//Output    C,B,A

So I have this function:

function toAlpha($data){    $alphabet =   array('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z');    $alpha_flip = array_flip($alphabet);    if($data <= 25){      return $alphabet[$data];    }    elseif($data > 25){      $dividend = ($data + 1);      $alpha = '';      $modulo;      while ($dividend > 0){        $modulo = ($dividend - 1) % 26;        $alpha = $alphabet[$modulo] . $alpha;        $dividend = floor((($dividend - $modulo) / 26));      }       return $alpha;    }}

which given a number converts it into character and it works fine

but then I also want a reverse function of this that given any output of this function, return the exact input that was put in to produce that output and I tried this:

function toNum($data){$alphabet =   array('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z');    $alpha_flip = array_flip($alphabet);  if(strlen($data) == 1){          return (isset($alpha_flip[$data]) ? $alpha_flip[$data] : FALSE);        }        else if(strlen($data) > 1){          $num = 1;          for($i = 0; $i < strlen($data); $i++){            if(($i + 1) < strlen($data)){              $num *= (26 * ($alpha_flip[$data[$i]] + 1));            }            else{              $num += ($alpha_flip[$data[$i]] + 1);            }          }          return ($num + 25);        }}

but it's not working properly...toAlpha(728) is producing 'aba' but toNum('aba') is producing 1378 rather than 728...

what did I do wrong? how can I fix the reverse function so that it works properly?

thanks in advance!