Practice Pure Functions (6.5.2) - Chapter 6: Functional Programming Tools in Python

Practice: Pure Functions

Lesson 6.5.2Functional Programming Tools in Python

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9 questions

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6 sample questions

Question 1.
What is a pure function?
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Think about functions that return values without changing anything outside them.
Question 2.
Give an example of a pure function.
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Consider basic arithmetic operations.
3Question 3.
Which of the following describes a pure function?
- It modifies a global state.
- It always returns the same output for the same input.
- It requires external dependencies.
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Think about whether the function's output can change based on external factors.
4Question 4.
True or False: Pure functions can change their output for the same input if global variables change.
- True
- False
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Recall the properties of pure functions.
Question 5.
Write a pure function that calculates the factorial of a number without using global variables.
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Think about how recursion can help achieve this.
Question 6.
Explain how transitioning a project from using impure functions to pure functions could improve maintainability. Provide at least two specific improvements.
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Consider aspects of code quality and debugging.

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