Print the given string in reverse order in Python

Understanding String Reversal

Reversing a string means changing its character order from end to start.

We will explore three different methods to reverse a string in Python.

Method 1: Using a Loop

This method iterates through the string from end to start and prints the characters.

def reverse_string(s):
    for i in range(len(s) - 1, -1, -1):
        print(s[i], end="")
    print()
    
# Example usage
reverse_string("hello")

Input: hello
Output: olleh

Method 2: Using Recursion

This method reverses the string using recursion.

def reverse_recursively(s, index):
    if index < 0:
        print()
        return
    print(s[index], end="")
    reverse_recursively(s, index - 1)
    
# Example usage
reverse_recursively("world", len("world") - 1)

Input: world
Output: dlrow

Method 3: Using Slicing

This method uses Python's slicing technique to reverse the string.

def reverse_using_slicing(s):
    print(s[::-1])
    
# Example usage
reverse_using_slicing("example")

Input: example
Output: elpmaxe