How to reverse string in Python ?

Author: neptune | 16th-May-2022

Different ways to reverse String in Python.

String is a widely used datatype in Python just like a list. In most of the interviews, a question was asked How to reverse a string in Python?
In this article, we will see a different way to reverse a String in Python.

1. Using Extended Slice Syntax:

Extended slice method takes three parameters [ start index: end index: increment ] just like the for a loop.
Example:
testString = 'Neptuneworld'
testString=testString[::-1]
print(testString)
Output:

2.Using BuildIn method Reversed():

Reversed method returns a string reversed object which we can see that’s why we use to join and convert that object to a string using join.
Example :
testString = 'Neptuneworld'
testString=””.join(reversed(testString))
print(testString)
Output :

3. Using for loop:

In this method, we iterate the string and add the element to the start of initialized empty string.
Example:
testString = 'Neptuneworld'
revString = str()
for ch in testString:
revString = ch + revString
print(revString)
Output:

4.Using Recursive Function:

def reverse(testString):
if len(testString) == 0:
return testString
else:
return reverse(testString[1:]) + testString[0]
print(reverse("NeptuneWorld"))

5.Using List :

Using list also we can reverse the string as shown below.
testString = 'Neptuneworld'
revString = []
for i in range(len(testString)-1,-1,-1):
revString.append(testString[i])

print(''.join(revString))

Thanks for Reading !!!

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How to reverse string in Python ?

Author: neptune | 16th-May-2022

Different ways to reverse String in Python.

String is a widely used datatype in Python just like a list. In most of the interviews, a question was asked How to reverse a string in Python?In this article, we will see a different way to reverse a String in Python.

1. Using Extended Slice Syntax:

Extended slice method takes three parameters [ start index: end index: increment ] just like the for a loop.Example:testString = 'Neptuneworld'testString=testString[::-1]print(testString)Output: (adsbygoogle = window.adsbygoogle || []).push({});

2.Using BuildIn method Reversed():

Reversed method returns a string reversed object which we can see that’s why we use to join and convert that object to a string using join.Example :testString = 'Neptuneworld'testString=””.join(reversed(testString))print(testString)Output : (adsbygoogle = window.adsbygoogle || []).push({});

3. Using for loop:

In this method, we iterate the string and add the element to the start of initialized empty string.Example:testString = 'Neptuneworld'revString = str()for ch in testString: revString = ch + revStringprint(revString)Output:

4.Using Recursive Function:

def reverse(testString): if len(testString) == 0: return testString else: return reverse(testString[1:]) + testString[0]print(reverse("NeptuneWorld")) (adsbygoogle = window.adsbygoogle || []).push({});

5.Using List :

Using list also we can reverse the string as shown below.testString = 'Neptuneworld'revString = []for i in range(len(testString)-1,-1,-1): revString.append(testString[i])print(''.join(revString))Thanks for Reading !!!

String is a widely used datatype in Python just like a list. In most of the interviews, a question was asked How to reverse a string in Python?
In this article, we will see a different way to reverse a String in Python.

Extended slice method takes three parameters [ start index: end index: increment ] just like the for a loop.
Example:
testString = 'Neptuneworld'
testString=testString[::-1]
print(testString)
Output:

Reversed method returns a string reversed object which we can see that’s why we use to join and convert that object to a string using join.
Example :
testString = 'Neptuneworld'
testString=””.join(reversed(testString))
print(testString)
Output :

In this method, we iterate the string and add the element to the start of initialized empty string.
Example:
testString = 'Neptuneworld'
revString = str()
for ch in testString:
revString = ch + revString
print(revString)
Output:

def reverse(testString):
if len(testString) == 0:
return testString
else:
return reverse(testString[1:]) + testString[0]
print(reverse("NeptuneWorld"))

Using list also we can reverse the string as shown below.
testString = 'Neptuneworld'
revString = []
for i in range(len(testString)-1,-1,-1):
revString.append(testString[i])

print(''.join(revString))

Thanks for Reading !!!