Practice Lambda Functions In Depth (6.2) - Chapter 6: Functional Programming Tools in Python

Practice: Lambda Functions in Depth

Lesson 6.2Functional Programming Tools in Python

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Write a lambda function that doubles a given number.
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Think about how you would multiply a number by 2.
Question 2.
What does the following code return? list(map(lambda x: x + 1, [1, 2, 3]))?
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Consider what happens when you add 1 to each element.
3Question 3.
What is the primary purpose of a lambda function in Python?
- To create named functions
- To create anonymous functions
- To create variables
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Remember, they are called 'anonymous' for a reason!
4Question 4.
True or False: Lambda functions can take multiple arguments.
- True
- False
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Think about your previous examples with multiple inputs.
Question 5.
Create a lambda function that takes a list of strings and returns a list with only the strings that have more than 3 characters.
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How do you measure the length of a string?
Question 6.
Write a function using lambda to sort a list of tuples based on the second element and demonstrate it with a list of tuples (number, name).
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Remember how to access tuple elements.

4 more questions in this section. Enroll free to practise them all.