Node.js Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Node.js Interview Questions

Questions Answers Views Company eMail

Explain libuv.

458

Explain repl in the context of node.js.

453

Is cryptography supported in node.js?

535

What is an event loop in node.js and how does it work?

513

List down the steps using which “control flow” controls the function calls in node.js?

500

List down the major benefits of using node.js?

517

What do you understand by eslint?

455

What do you understand by an event emitter in node.js?

494

Explain the working of the control flow function.

459

What is an error-first callback in node.js?

496

Differentiate between node.js vs ajax?

495

Explain the purpose of expressjs package?

525

List down the various timing features of node.js.

452

What do you understand by callback hell?

485

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

507

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Un-Answered Questions { Node.js }

What is MEAN stack?

525

Is node.js is free?

494

What language does uber use?

437

How many types of api functions are available in node.js?

588

Differentiate between spawn() and fork() methods in node.js?

463

How will you import external libraries in Node.js?

501

How to debug the code in Node.js?

464

Differentiate between process.nexttick() and setimmediate()?

491

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

753

Explain the reason as to why express ‘app’ and ‘server’ must be kept separate.

457

What is a node process?

480

Does node run on windows?

485

How many types of api functions are there in node.js?

503

What is package.json file in node project?

494

What do you understand by middleware? How can you use middleware in node js?

463

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