Python List clear() Method

The Python list clear() method removes all the elements from the list. It clear the list completely and returns nothing. It does not require any parameter and returns no exception if the list is already empty.

Syntax of clear() Method

The following is the syntax of the list clear() method:

Parameter

• No parameter

Return

• It returns None.

Examples of List clear()

Let's see some examples of list clear() method to understand it's functionality.

Example 1: Simple Use of the List clear() Method

Let's see a simple example in which clear() method is used to clear a list. The clear() method clears all the elements from the list.

Output:

Given List: ['1', '2', '3']
Updated List: []

Explanation:

In the above example, we are given a list. We used the clear() method to remove all the elements from the list. As a result, the list becomes empty.

Example 2: Clearing an Empty List

If the list is already empty, the method returns nothing. See the example below.

Output:

Given List: []
Updated List: []

Explanation:

In this example, we are given an empty list. We used the clear() method to clear the list. Since, the list is already empty, there is no impact on the list after using clear(). Hence, it returns nothing.