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

Node.js Interview Questions

Questions Answers Views Company eMail

How do you close a file using node.js?

560

What is the use of settimeout() function in node.js?

603

What is a callback?

547

Which module is used for web based operations in node.js?

570

Why we use node.js?

570

How to check the already installed dependencies using npm?

531

What is an event loop?

503

What are global installations of dependencies?

497

How to handle the “unhandled exceptions” in node.js?

649

What is the use of setinterval() function in node.js?

520

What tool and ide is used for node.js?

518

How do you delete a file using node.js?

618

How to update the dependency using npm?

517

Can a user access dom in a node.js?

632

What are the uses of __filename and __dirname variables in node.js?

635

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Un-Answered Questions { Node.js }

What is the use of method – 'fork()'?

497

What is the use of DNS module in Node.js?

537

Explain exit codes in Node.JS? List out some exit codes?

526

How we can close a file in node js?

554

How promises are better than callbacks?

643

What is the difference between module.exports and exports in node.js?

556

What is the use of QueryString in Node.js?

519

What is a response header?

524

List down the tasks which should be done asynchronously using the event loop?

491

What are the important command line options in Node.js?

592

What is the difference between events and callbacks in node.js?

605

How to authenticate users in express js?

471

What is multi node cluster?

566

How do you read a file using node.js?

629

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

533

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