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What are some frequently asked Node.js interview questions for the Junior JavaScript developer?

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The most frequently asked questions are: 1.What is “callback hell” and how can it be avoided?2.What is REPL? What purpose it is used for?3.What is the fundamental difference between Node.js and Ajax?4.Which are the two types of API functions in Node.js?5.Which is the framework that is most...
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The most frequently asked questions are:

1.What is “callback hell” and how can it be avoided?
2.What is REPL? What purpose it is used for?
3.What is the fundamental difference between Node.js and Ajax?
4.Which are the two types of API functions in Node.js?
5.Which is the framework that is most commonly used in Node.js?

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