What is let in node js?
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How does node.js handle the child threads?
What is the role of assert in node.js?
How promises are better than callbacks?
What is acceptance test driven development (atdd)?
Why we have to keep separate express app and server?
Explain the concept of url module.
Explain v8 engine?
What is REPL in Node.js?
What are callback hells?
Why do we need promises in node js?
Are browsers single threaded?
What is asynchronous code?