Practice Using Map Function (25.1.1) - List Comprehension - Data Structures and Algorithms in Python
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Using map Function

Practice - Using map Function

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does the map function do in Python?

💡 Hint: Think of it as a way to batch process items.

Question 2 Easy

Write a simple function that doubles a number. How would you apply it to a list of numbers using map?

💡 Hint: Remember: Define your function and then use `map`!

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the map function return in Python 3?

List
Map Object
None

💡 Hint: Remember what `map` produces in Python 3!

Question 2

True or False: The filter function can only return elements that meet a positive condition.

True
False

💡 Hint: Consider what happens to values that are `False`.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Write a Python snippet using filter to filter out all negative numbers from a list containing both positive and negative integers, then double those filtered values using map.

💡 Hint: Think about how you can first find the valid numbers before applying the second operation.

Challenge 2 Hard

Create a list comprehension to find the cubes of all integers from 1 to 20 that are divisible by 3.

💡 Hint: Focus on how to conditionally separate the values before cubing them.

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