JavaScript Skill Test

πŸš€ JavaScript Skills Assessment

Test your knowledge in JavaScript

πŸ“‹ Test Instructions & Terms -JavaScript

🎨 Ready to Put Your JavaScript Skills to the Test?

Dive into our fun and challenging JavaScript designed to evaluate your understanding of JavaScript β€” the powerful language responsible for styling the web. Whether you’re just starting out or brushing up on your skills, this quiz is a great way to learn and assess what you know.

πŸ“Œ Here’s What You’ll Experience:

  • 🧩 40 carefully selected MCQs covering everything from basic properties to advanced layout techniques.
  • ⏳ Each question gives you 30 seconds to choose the best answer.
  • πŸ“ˆ Immediate score report and helpful feedback once you finish the test.
  • πŸŽ–οΈ Showcase your knowledge and aim for a high score!

This quiz isn’t just about getting it right β€” it’s about learning. After you complete the test, you’ll be able to see which questions you missed and read through explanations to help you grow stronger in JavaScript.

Perfect for students, developers, job seekers, or anyone looking to improve their web design and styling skills. Take the quiz and discover where you shine β€” and where you can sharpen your skills.

  • Total Questions: 40
  • Time per Question: 30 seconds
  • Mandatory: All questions are compulsory
  • Auto-Submit: If time ends, answer will be locked
  • Result Display: Score and feedback shown after test
πŸ’‘ Tip: Stay calm and read each question carefully. This is a great way to evaluate and improve your skills.

πŸ§ͺ JavaScript Quiz

Time Left: 40 seconds

1. What is the output of the following code? console.log(5 + "5");

2. Which of the following is used to declare a variable in JavaScript?

3. What will be the value of x after the following code executes? let x = 10; x++;

4. How do you write a single-line comment in JavaScript?

5. What does the typeof operator do in JavaScript?

6. What is the correct syntax to create a function in JavaScript?

7. What will be the result of the following code? let a = "hello"; let b = "world"; console.log(a + b);

8. Which of the following is NOT a primitive data type in JavaScript?

9. Which method is used to remove the last element from an array in JavaScript?

10. What does NaN stand for in JavaScript?

11. What is the output of the following code? console.log(2 + 2 == 4);

12. Which of the following is used to check if two values are equal in JavaScript?

13. What will the following code output? console.log(10 == "10");

14. How do you create an array in JavaScript?

15. Which function is used to parse a string into an integer?

16. Which of the following is the correct syntax for a for loop in JavaScript?

17. What will be the output of this code? console.log("10" + 5);

18. Which of the following statements creates a function in JavaScript?

19. What is the purpose of console.log() in JavaScript?

20. How do you declare a constant in JavaScript?

21. What is the output of the following code? let x = 5; let y = "5"; console.log(x == y);

22. What does the slice() method do in JavaScript?

23.Which operator is used to assign a value to a variable in JavaScript?

24. Which method is used to convert a string to lowercase in JavaScript?

25. What does the parseFloat() method do in JavaScript?

26. How do you add an element to the end of an array?

27. What is the difference between let and const in JavaScript?

28. Which method is used to return the index of the first occurrence of a specified value in an array?

29. What is the result of the following expression? console.log(5 + "10");

30. What is the output of this code? let x = 5; let y = 3; console.log(x > y);

31. What is a closure in JavaScript?

32. What is the purpose of the bind() method in JavaScript?

33. What is event delegation in JavaScript?

34. What does async and await allow you to do in JavaScript?

35. What is the purpose of the Promise.all() method in JavaScript?

36. How does the setTimeout() function work in JavaScript?

37. What is the difference between == and === in JavaScript?

38. What is the use of the spread operator in JavaScript?

39.How do you handle errors in JavaScript?

40.What does the setInterval() function do in JavaScript?

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