How do you reverse a string in Python?

Question

Aryan Kumar · Answer

There are several ways to reverse a string in Python. Here are a few of the most common methods:
Using a for loop: This method iterates through the string from the end to the beginning, adding each character to a new string in reverse order.
Python
def reverse_string(string):
  reversed_string = ""
  for i in range(len(string) - 1, -1, -1):
    reversed_string += string[i]
  return reversed_string
if __name__ == "__main__":
  string = "hello world"
  reversed_string = reverse_string(string)
  print(reversed_string)
Using slicing: This method uses the [::-1] slice syntax to reverse the order of the characters in the string.
Python
def reverse_string(string):
  return string[::-1]
if __name__ == "__main__":
  string = "hello world"
  reversed_string = reverse_string(string)
  print(reversed_string)
Using the reversed() function: This function returns an iterator that iterates through the string in reverse order. The iterator can then be used to construct a new string in reverse order.
Python
def reverse_string(string):
  reversed_string = "".join(reversed(string))
  return reversed_string
if __name__ == "__main__":
  string = "hello world"
  reversed_string = reverse_string(string)
  print(reversed_string)
Using recursion: This method recursively calls itself to reverse the string one character at a time.
Python
def reverse_string(string):
  if len(string) == 0:
    return ""
  else:
    return string[-1] + reverse_string(string[:-1])
if __name__ == "__main__":
  string = "hello world"
  reversed_string = reverse_string(string)
  print(reversed_string)
Which method you use to reverse a string in Python depends on your specific needs and preferences. The for loop method is the most straightforward, but the slicing and
reversed() function methods are more concise. The recursion method is the most efficient, but it can be more difficult to understand.

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How do you reverse a string in Python?

Utpal Vishwas

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