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What is Express.js and why is it commonly used with Node.js?

Express.js is a lightweight web application framework built on top of Node.js. It simplifies server development by providing routing, middleware support, request handling, and API development capabilities. Express is widely used for building RESTful APIs and backend services.

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How would you handle global error boundaries in Express or Node.js backend apps?

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What is Node.js and why is it used?

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What is the difference between Node.js and JavaScript?

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JB

Jeevan Bhargav

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This answer is calibrated for technical interviews. Verify benchmarks in local sandboxes before deploying.