Node.js Interview Questions
Questions Answers Views Company eMail

Explain what is a javascript engine?

228

Explain cli?

236

Is node js single-threaded?

249

How can you set default node version using nvm?

268

What function are arguments available to express js route handlers?

244

What is difference between return and callback in javascript functions?

255

What is the revealing module pattern?

235

How does promise and queue work?

251

Explain event loop in node js?

245

Since node is a single threaded process, how to make use of all cpus?

263

Explain v8 engine?

222

Name the type of web applications which can be built using express js.

209

What is the use of express js?

377

How can models be defined in express js?

347

What is jit and how is it related to node js?

338


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Un-Answered Questions { Node.js }

What are node.js unit testing frameworks?

266


What is the difference between spawn and fork?

264


Why to use MongoDB?

245


What is difference between synchronous and asynchronous method of fs module?

491


How we can write a file in node js?

253






What is node application?

234


What is the difference between package dependencies and development dependencies?

259


Define the concept of the test pyramid. Explain the process to implement them in terms of http apis.

253


What is the difference between setimmediate and process nexttick?

227


Difference between operational and programmer errors in node js?

248


What do you understand by the term i/o?

215


Write the steps for setting up an express js application.

232


Mention the framework most commonly used in node.js?

280


Does node.js support multi-core platforms? And is it capable of utilizing all the cores?

249


Who developed npm?

261