Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the purpose of unit testing?
💡 Hint: Think about what happens if a piece of code does not perform as intended.
Question 2
Easy
What is Jest commonly used for?
💡 Hint: Consider what testing framework you might use for your JavaScript code.
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Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does Jest help you do?
- Write styles with CSS
- Test JavaScript code
- Design databases
💡 Hint: Consider the purpose of a testing framework.
Question 2
True or False: Unit tests ensure that parts of an application work correctly in isolation.
- True
- False
💡 Hint: Think about the scope of unit testing.
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Challenge Problems
Push your limits with challenges.
Question 1
Implement a function that calculates the factorial of a number and write a test for it using Jest. How would you assert for the correct output?
💡 Hint: Factorial means multiplying the number by all positive integers less than it.
Question 2
Discuss how you would structure a Jest configuration file for a larger project with multiple test files.
💡 Hint: Think about what settings a large project might require for industry standards.
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