Here is the collection of most frequently asked top 50 Node js interview questions.
NodeJs is an opensource library available for creating server-side applications. It is built over the Chrome V8 platform.
Module.export is used when you want to use any object, function into another NodeJs file.
Mocha is a testing framework in NodeJS which are used for creating unit test cases in NodeJS.
A promise in Node application is an action that can be either success or failure. If the web request is able to complete its promise then, its a success or its a failure. We can use chaining in promises.
We can use the testing framework like Mocha for testing the NodeJS applications
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