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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define a function is_positive(n) that returns True if n is positive, and False otherwise. Use filter to get positive numbers from the list [-1, 0, 1, 2, -2].
💡 Hint: Remember to define the function before using filter.
Question 2
Easy
Using filter, extract numbers greater than 10 from the list [5, 10, 15, 20, 25].
💡 Hint: Think about how you would compare each element.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does the filter function do in Python?
- Extracts elements based on a condition
- Transforms elements
- Both A and B
💡 Hint: Think about what filtering means in everyday terms.
Question 2
True or False: List comprehensions can replace both map and filter functions in Python.
- True
- False
💡 Hint: Consider the structure of a list comprehension.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a Python function that takes a list of numbers, applies filter to extract only positive numbers, and then uses map to square these numbers. Return the final result.
💡 Hint: Think about using lambdas for both filtering and mapping.
Question 2
Refactor your function to use list comprehension instead of filter and map to achieve the same result with a cleaner syntax.
💡 Hint: Remember to incorporate both the condition and the transformation together.
Challenge and get performance evaluation