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Explain Hoisting in JavaScript. Event Loop and output-based JavaScript questions. Explain Map, Filter, and Reduce. How does Reduce work internally? Render a Todo List in React. Write test cases for an API. Difference between Map and Filter. Give a practical example of Filter. Explain your project and your role. What is React.js?
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Technical Lead

Interviewed at HCLTech

3.5★
Jun 15, 2026

Explain Hoisting in JavaScript. Event Loop and output-based JavaScript questions. Explain Map, Filter, and Reduce. How does Reduce work internally? Render a Todo List in React. Write test cases for an API. Difference between Map and Filter. Give a practical example of Filter. Explain your project and your role. What is React.js?

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