How can you avoid callback hells?
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How promises are better than callbacks?
What do you understand by the term i/o?
Explain npm in node.js?
What is an event loop in node?
Differentiate between spawn() and fork() methods in node.js?
Can you create http server in nodejs, explain with code
Why Node.js is based on single threaded architecture?
Is node.js on multi-core machines?
What is mocha?
Why is the importance of a consistent style?
What do you mean by “streams”?
What is the package.json and name of attributes?