What is error-first callback?
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How to stop master process without suspending all of its child processes?
What does it mean “non-blocking” in node.js?
What is asynchronous code?
What is promises in node js?
What is the difference between setimmediate() and settimeout()?
How is node.js different from ajax?
What are lts releases of node.js?
What we use buffer class in node.js?
What is an event loop?
What is the purpose of console object?
What is the timing features of node.js? Explain some timers modules?
Explain 'Stub'?