clear() method removes all the items from the list

clear() takes no argument.

my_list=['Alex','Ronald','John','Ronald','Ronn']
my_list.clear()
print(my_list)

Output ( all items removed )

[]

We can use del also to remove all the elements of the list. We can check the data type after using del.

my_list=['Alex','Ronald','John','Ronald','Ronn']
del my_list[:]
print(my_list)  
print(type(my_list))

Output

[]
<class 'list'>

Difference between del and clear

clear is a method of list class, del is a keyword in Python. After using clear the list is not deleted but after using del the list object is deleted.

my_list=['Alex','Ronald','John','Ronald','Ronn']
del my_list
print(my_list)  #NameError

The last line will generate error as we can't print the list after deleting the same.

Example 1: Clearing a List After Processing

my_list = [4, 5, 6]
print("Before clearing:", my_list)  # Output: [4, 5, 6]
my_list.clear()
print("After clearing:", my_list)   # Output: []

Example 2: Using clear() with Nested Lists

nested_list = [[1, 2], [3, 4], [5, 6]]
nested_list[0].clear()
print(nested_list)  # Output: [[], [3, 4], [5, 6]]

Example 3: Resetting List in a Function

def reset_list(my_list):
    my_list.clear()

data = [1, 2, 3]
reset_list(data)
print(data)  # Output: []

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clear() to remove all items in a list

Difference between del and clear

Example 1: Clearing a List After Processing

Example 2: Using clear() with Nested Lists

Example 3: Resetting List in a Function

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