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

Node.js Interview Questions

Questions Answers Views Company eMail

Name some of the attributes of package.json?

445

How node prevents blocking code?

520

What is the difference of using var and not using var in repl while dealing with variables?

517

What are the benefits of using node.js?

562

How will you read a file using node?

505

Is node a single threaded application?

487

What is the purpose of setinterval function?

517

What is event emmitter?

483

What is piping in node?

549

Name some of the flags used in read/write operation on files.

569

What is the use of underscore variable in repl?

497

How to uninstall a dependency using npm?

555

How will you create a directory?

485

How to check the already installed dependencies which are globally installed using npm?

491

What is global installation of dependencies?

522

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Un-Answered Questions { Node.js }

What is behavior driven development (bdd)?

478

What are the streams in node.js?

534

What are the exit codes in node.js? Can you list a few exit codes?

516

How To Update A Dependency Using Npm?

500

What are the uses of npm in node js?

515

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

473

How do you truncate a file using node.js?

536

Does facebook use server side rendering?

668

What do you understand by callback hell?

491

What are buffers?

473

How can we avoid Callback Hell in Node.js?

468

Differentiate between readfile vs createreadstream in node.js?

516

What language is nodejs?

497

What is spawn in node js?

492

How we can update npm to new version in node.js?

533

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