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. Which keyword declares a constant?

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Q. What is the purpose of Promise.all?

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Q. What does console.log(typeof []) return?

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Q. Which method stops an interval?

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Q. What is the result of ’10’ – 5?

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Q. Which event triggers on page load?

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Q. What does parseFloat() do?

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Q. Which method converts a string to lowercase?

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Q. Which method finds the index of an array element?

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Q. What is the output of 5 === ‘5’?

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