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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does a while loop do in JavaScript?
💡 Hint: Think about how conditions control the flow of code.
Question 2
Easy
Write a simple while loop that prints numbers 1 through 3.
💡 Hint: Remember to initialize i and increment it in the loop.
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 role of the condition in a while loop?
- It defines the variable to loop.
- It determines how many times to run the loop.
- It controls the execution of the loop.
💡 Hint: Think about what happens when the condition evaluates to true.
Question 2
True or False: A while loop will run indefinitely if the condition is always true.
- True
- False
💡 Hint: Consider what factors could make the condition true forever.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a while loop that takes an integer input and calculates its factorial. Ensure you handle negative inputs correctly.
💡 Hint: Think about how each iteration will reduce n and how to multiply the result.
Question 2
Create a directory in your code that lists powers of two up to an upper limit given by the user using a while loop.
💡 Hint: Consider how to express each power of two and how many times you need to loop.
Challenge and get performance evaluation