Why is node js used?
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Give an example of writable stream in node.js?
What do you understand by middleware? How can you use middleware in node js?
For what require() is used in node js?
Is callback function asynchronous?
How can you avoid callback hells?
What is the purpose of setinterval function?
What is piping in node js?
What is the purpose of process object?
How to share a variable between node.js modules?
What are various node.js REST API frameworks?
What is a blocking code?
Why is the importance of a consistent style?