How do you reverse a list in python?
Problem:Reversing the order of elements in a list is a common task in Python programming. Developers need to be aware of the available methods and techniques to efficiently achieve this.
Solution:
Using the reverse() Method:
• In-place reversal of a list with the reverse() method.
• Modifies the original list.
Code Example:
my_list = [1, 2, 3 , 4 , 5]
my_list.reverse()
print (my_list) # Output :[ 5 , 4 , 3, 2, 1]
Using Slicing:
• Create a reversed copy of the l ist without modifyi ng the orig inal.
my_list = [1, 2, 3, 4, 5]
my_list.reverse()
print (my_list) # Output :[5 , 4 , 3, 2, 1]
Using the reversed() Function
• Obtai n a reversed iterator that can be converted to a list.
my_list = [1, 2, 3 , 4 , 5]
reversed_list = list(reversed (my_list))
print(reversed_list) # Output : [5, 4 , 3, 2 , 1]
More Questions
40 . How do you reverse a list?