explain callback hell and how to avoid the same.
Node Interview Questions
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MCQ's related to Node js and Javascript
Binary tree e inversão da mesma
Questions were based on node js basic questions like the import and statements used in node js. Asked about its libraries.
How does Node.js handle asynchronous operations, and what are the differences between callbacks, promises, and async/await? Can you explain the event loop in Node.js and how it affects performance, especially when dealing with I/O-bound tasks? What is the purpose of middleware in Express.js, and can you provide an example of how you would create and use custom middleware in an application?
Most of the questions were related to the assignment with some extra ones about system design and JS experience (no algorithms or JS brain teasers).
Can you explain the differences between the event loop in Node.js and traditional multi-threading models?
Explain the concept of non-blocking I/O in Node.js. How does it contribute to scalability?
How does error handling work in Node.js? What are best practices for error handling in Node.js applications?
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