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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a callback function?
💡 Hint: Think about functions that are used after other functions.
Question 2
Easy
What does asynchronous mean in programming?
💡 Hint: Consider tasks that don't wait for others to complete.
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 is the main purpose of a callback function?
- To execute another function
- To handle an event
- To return a value
💡 Hint: Think about the role of a function after an event occurs.
Question 2
True or False: Asynchronous execution blocks the main thread until completion.
- True
- False
💡 Hint: Consider how tasks are handled in an event-driven environment.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a simple webpage that implements a button triggering a callback function. Explain the expected behavior when the button is clicked—including the asynchronous nature of the callback.
💡 Hint: Consider how the webpage continues to be interactive.
Question 2
Analyze a piece of code where callbacks are nested multiple times. Identify the issues that may arise and propose a refactor to reduce complexity.
💡 Hint: Think about different ways to handle asynchronous operations in a cleaner way.
Challenge and get performance evaluation