Improve your JavaScript skills with this online quiz featuring 10 multiple-choice questions. Whether you’re a beginner or an experienced developer, this quiz covers JavaScript fundamentals, functions, objects, DOM manipulation, ES6 features, and asynchronous programming.

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10 Minutes JavaScript Quiz Test Online

Test your JavaScript knowledge with this 10-minutes quiz! Covering fundamental to advanced concepts, this quiz features 10 multiple-choice questions that will challenge your understanding of variables, functions, objects, asynchronous programming, and DOM manipulation. Perfect for interview preparation and skill enhancement.

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1. Which statement is used to stop the execution of a loop in JavaScript?

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2. What is the result of the code console.log(typeof NaN);?

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3. Which company developed JavaScript?

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4. What is the default HTTP method used by AJAX?

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5. What is the purpose of the timeout property in XMLHttpRequest?

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6. JavaScript is a _______ language.

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7. What is the purpose of Object.getPrototypeOf()?

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8. Which function repeatedly executes code after a set interval?

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9. Which DevTools feature helps analyze how long each function takes to execute?

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10. How do you check the browser's viewport width in JavaScript?

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