Top 50 NodeJS Interview Questions and Answers for 2025
Prepare for your NodeJS interview with confidence!
In 2025, Node.js continues to be a dominant force in the world of server-side programming, with its versatility and performance making it an increasingly sought-after skill in the tech industry.
For anyone looking to excel in Node.js interviews this year, having a solid grasp of both fundamental concepts and the latest advancements is crucial.
To assist you in your preparation, we’ve curated a definitive list of the top 50 Node.js interview questions and their comprehensive answers. Let’s embark on a journey to master the essential principles and intricacies of Node.js development!
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Level -1: Basic
1. What is NodeJS?
2. What is Event Loop and how it works?
3. What are REPL and its uses?
4. Difference between package.json and package.lock.json files?
