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

Node.js Interview Questions

Questions Answers Views Company eMail

What is Node.js? What is it used for?

524

What is Event-driven programming?

508

What is Event loop in Node.js work? And How does it work?

507

What is REPL in Node.js?

542

What is the purpose of module.exports in Node.js?

487

What is require in Node.js? How will you load external files and libraries in Node.js?

503

What is the difference between Asynchronous and Non-blocking?

529

What is Tracing in Node.js?

492

How will you debug an application in Node.js?

512

Difference between setImmediate() vs setTimeout()?

531

What is process.nextTick()

528

What is package.json? What is it used for?

603

What is libuv?

491

What is Node.js?

485

Who has developed Node.js?

485

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Un-Answered Questions { Node.js }

How to check the already installed dependencies using npm?

494

What is typically the first argument passed to a node.js callback handler?

575

How will you debug an application in Node.js?

512

Which server is used in node js?

531

Why are callback functions used?

542

What is the use of the underscore variable in repl?

478

How to get started with node.js?

539

Is nodejs really single-threaded

465

Does js need a server?

481

How to create function in node js?

541

What is the purpose of node.js module.exports?

482

What is the best backend language?

493

which module is used for file based operations in node.js?

536

can you explain the difference between readfile vs createreadstream in nodejs.

497

What are the differences between “readuintbe” and “writeintbe” in node.js?

529

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