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 what is a javascript engine?

520

Explain cli?

462

Is node js single-threaded?

521

How can you set default node version using nvm?

564

What function are arguments available to express js route handlers?

491

What is difference between return and callback in javascript functions?

553

What is the revealing module pattern?

500

How does promise and queue work?

501

Explain event loop in node js?

495

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

499

Explain v8 engine?

429

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

457

What is the use of express js?

605

How can models be defined in express js?

599

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

532

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Un-Answered Questions { Node.js }

What is connect in node.js?

455

How we can convert Buffer to JSON?

474

What are JavaScript task runners?

559

What is the difference between Node.js vs Ajax?

544

Explain modules in node js?

577

What are callback hells?

544

Explain what is a javascript engine?

520

Is let and const hoisted?

448

How to check a file/directory existence in node.js?

487

What is promisify?

496

How to send data from node js to html?

515

What is the package.json and name of attributes?

481

Why do we need promises in node js?

478

Why is node js server side?

516

How to truncate the file in Node.JS?

559

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