We will develop a program to reverse a string in python using inbuilt function. We are using a predefined function join(reversed()). Python reversed() method returns an iterator that accesses the given sequence in the reverse order.
Example of reverse string:-
String: Know Program
Reverse String: margorP wonK
String Reverse Function in Python
We will take a string while declaring the variables. Then, find the reverse of the string using reversed() function. Finally, the result will be displayed on the screen.
# Python program to reverse a string using inbuilt function
# take inputs
string = 'Know Program'
# find reverse using buit-in function
reverse = ''.join(reversed(string))
# print reverse of string
print('The reverse string is', reverse)
Output:-
The reverse string is margorP wonK
Reverse a String in Python using inbuilt Function
In the previous program, inputs are hardcoded in the program but in this program, input will be provided by the user.
# Python program to reverse a string using inbuilt function
# take inputs
string = input('Enter the string: ')
# find reverse using buit-in function
reverse = ''.join(reversed(string))
# print reverse of string
print('The reverse string is', reverse)
Output for the input values test-case-1:-
Enter the string: reverse
The reverse string is esrever
Output for the input values test-case-2:-
Enter the string: Python
The reverse string is nohtyP
Reverse a String using inbuilt Function in Python
We can also take the help of a function to reverse a string in python. A function is a block of code that performs a specific task.
# Python program to reverse a string using inbuilt function
def reverse(string): #user-defined functon
# find reverse using buit-in functions
reverse = ''.join(reversed(string))
return reverse
# take inputs
string = input('Enter the string: ')
# calling function and display result
print('The reverse string is', reverse(string))
Output for the input values test-case-1:-
Enter the string: functions
The reverse string is snoitcnuf
Output for the input values test-case-2:-
Enter the string: built-in function
The reverse string is noitcnuf ni-tliub