REST APIs with Flask and Python - Improving Code and Error Control

This video tutorial covers the use of filter functions to improve code readability and efficiency. It explains how to implement filters using Lambda functions, discusses the nature of filter objects, and addresses error handling when using filters. The tutorial also emphasizes ensuring unique item names and handling duplicate entries, concluding with a recap of the key points discussed.

What is the primary advantage of using filter functions over traditional iteration methods?

• They use less memory.

• They are easier to debug.

• They improve code readability and efficiency.

• They are faster in execution.

Which of the following is a correct way to use a lambda function with the filter function?

• filter(lambda x: x.name == name, items)

• filter(x => x.name == name, items)

• filter(lambda x: x == name, items)

• filter(x: x.name == name, items)

What does the filter function return?

• A single item

• A list of items

• A filter object

• A dictionary

How can you retrieve the first item from a filter object?

• Using the 'retrieve' function

• Using the 'get' method

• Using the 'next' function

• Using the 'first' method

What happens if 'next' is called on a filter object with no matching items?

• It raises an error.

• It returns an empty list.

• It returns the last item.

• It returns a default value.

What HTTP status code is returned when a duplicate item name is detected?

• 200

• 404

• 500

• 400

Why is a duplicate item name considered a 'bad request'?

• Because the client should verify the uniqueness of names.

• Because the server cannot handle duplicates.

• Because it causes a server error.

• Because it is against the API policy.