What is the output of the len() function when applied to an empty list?

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Prepare for the WGU C859 Python Test with quiz questions and explanations. Study with clarity on coding concepts and exam format. Ace your exam!

Multiple Choice

What is the output of the len() function when applied to an empty list?

Explanation:
The len() function in Python is designed to return the number of items in an object. When applied to an empty list, it evaluates the list and counts the elements present. Since there are no elements in an empty list, the result is 0. This behavior is consistent across all types of collections in Python, where the length of an empty collection is always zero, making the use of len() a straightforward way to determine if a container has any elements. Thus, applying len() to an empty list accurately yields 0, confirming that the output is indeed 0.

The len() function in Python is designed to return the number of items in an object. When applied to an empty list, it evaluates the list and counts the elements present. Since there are no elements in an empty list, the result is 0.

This behavior is consistent across all types of collections in Python, where the length of an empty collection is always zero, making the use of len() a straightforward way to determine if a container has any elements. Thus, applying len() to an empty list accurately yields 0, confirming that the output is indeed 0.

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