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Top JavaScript Questions and Answers for Exam Preparation

Explore top JavaScript questions and answers to boost your exam preparation and enhance your understanding of key concepts.

JavaScript Questions

Q. What does console.log(!0) return?

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Q. Which method converts JSON to a string?

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Q. What is the purpose of reduce()?

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Q. Which event triggers on mouse hover?

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Q. What does console.log(0.1 + 0.2) approximate?

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Q. Which method checks if a value is an array?

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Q. What is the purpose of async/await?

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Q. Which method trims whitespace from a string?

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Q. Which method filters unique values?

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Q. What does JSON.parse do?

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