Top 50 Node Js Interview Questions And Answers
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Top 50 Node Js Interview Questions And Answers
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Author : Knowledge Powerhouse
language : en
Publisher:
Release Date : 2017-03-04
Top 50 Node Js Interview Questions And Answers written by Knowledge Powerhouse and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-04 with categories.
Introduction: Top 50 Node.js Interview Questions Node.js is one of the most popular Javascript engine in technology world. There is a growing demand for Software Engineer jobs in Node.js. This book contains basic to expert level Node.js interview questions that an interviewer asks. Each question is accompanied with an answer so that you can prepare for job interview in short time. We have compiled this list after attending dozens of technical interviews in top-notch companies like- Airbnb, Netflix, Uber etc. Often, these questions and concepts are used in our daily programming work. But these are most helpful when an Interviewer is trying to test your deep knowledge of Node.js. How will this book help me? By reading this book, you do not have to spend time searching the Internet for Node.js interview questions. We have already compiled the list of the most popular and the latest Node.js Interview questions. Are there answers in this book? Yes, in this book each question is followed by an answer. So you can save time in interview preparation. What is the best way of reading this book? You have to first do a slow reading of all the questions in this book. Once you go through them in the first pass, mark the questions that you could not answer by yourself. Then, in second pass go through only the difficult questions. After going through this book 2-3 times, you will be well prepared to face a technical interview for Software Engineer, Senior Software Engineer and Principal Engineer positions in Node.js. What is the level of questions in this book? This book contains questions that are good for a Associate Software engineer to a Senior Software engineer. The difficulty level of question varies in the book from a Fresher to an Experienced professional. What are the sample questions in this book? What are the reasons of popularity of Node.js? What is Event Driven Programming followed in Node.js? What are the main advantages of using Node.js? What are the types of applications that can be built by using Node.js? Why Node.js is based on single threaded architecture? What are the different types of APIs available in Node.js? Can we run Node.js on Windows environment? What is Event Loop in Node.js? What are the disadvantages of Node.js? How can we handle blocking I/O operations in Node.js? What is the difference between Asynchronous and Non-blocking? What is the difference between Node.js and Ajax? What is the difference between Node.js and AngularJS? How will you import external libraries in Node.js? What happens if we call require() method to load same module multiple times in Node.js? Why Node.js application is scalable? What is the purpose of module.exports in Node.js? What is Tracing in Node.js? How will you debug an application in Node.js? What is a Child Process in Node.js? What is a Cluster in Node.js? What is closure in JavaScript? What is a Buffer in Node.js? How will you convert a Buffer to JSON in Node.js? Why do we use __filename in Node.js? What is the use of Timers is Node.js? What are the important APIs in Timers module in Node.js? What is EventEmitter in Node.js? What is the use of net.Socket in Node.js? What are the important events of net.Socket in Node.js? Can we build a REST service in Node.js? What is the use of DNS module in Node.js? What are the important command line options in Node.js? http://www.knowledgepowerhouse.com
500 Node Js Interview Questions And Answers Free Book
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Author : Vamsee Puligadda
language : en
Publisher: Vamsee Puligadda
Release Date :
500 Node Js Interview Questions And Answers Free Book written by Vamsee Puligadda and has been published by Vamsee Puligadda this book supported file pdf, txt, epub, kindle and other format this book has been release on with Computers categories.
Knowledge for Free... Get that job, you aspire for! Want to switch to that high paying job? Or are you already been preparing hard to give interview the next weekend? Do you know how many people get rejected in interviews by preparing only concepts but not focusing on actually which questions will be asked in the interview? Don't be that person this time. This is the most comprehensive Node JS interview questions book that you can ever find out. It contains: 500 most frequently asked and important Node JS interview questions and answers Wide range of questions which cover not only basics in Node JS but also most advanced and complex questions which will help freshers, experienced professionals, senior developers, testers to crack their interviews.
Top 50 Reactjs Interview Questions And Answers
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Author : Knowledge Powerhouse
language : en
Publisher:
Release Date : 2018-05-03
Top 50 Reactjs Interview Questions And Answers written by Knowledge Powerhouse and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-03 with categories.
Top 50 ReactJS Interview Questions Updated 2018 version!! This book contains tricky and theoretical ReactJS interview questions that an interviewer asks. It is a compilation of advanced ReactJS interview questions after attending dozens of technical interviews in top-notch companies like- AirBnb, Google, Ebay, Amazon etc. How will this book help me? By reading this book, you do not have to spend time searching the Internet for ReactJS tricky interview questions. We have already compiled the list of the most popular and the latest ReactJS Interview questions. Are there answers in this book? Yes, in this book each question is followed by an answer. So you can save time in interview preparation. What is the best way of reading this book? You have to first do a slow reading of all the questions in this book. Once you go through them in the first pass, mark the questions that you could not answer by yourself. Then, in second pass go through only the difficult questions. After going through this book 2-3 times, you will be well prepared to face a technical interview for Software Engineer position in ReactJS. What is the level of questions in this book? This book contains questions that are good for a Associate Software engineer to a Principal Software engineer. The difficulty level of question varies in the book from a Fresher to an Experienced professional. What are the sample questions in this book? What are the main features of React? What are the main advantages of React? What are the major limitations of React? What do you know about JSX? What is Virtual DOM? What are the differences between DOM and Virtual DOM Can web browsers read JSX? What is the difference between React and AngularJS? Why everything is a component in React? What is the use of render() function in React? How will you embed multiple components into one component in React? What is Props in React? What is state in React? What are the main differences between State and Prop in React? How will you update the state of a specific component in React? What is the use of arrow function in React? What are the differences between Stateful and Stateless components in React? What are the phases in lifecycle of a React component? What are the important lifecycle methods of a React component? What is an Event in React? What is a SyntheticEvent in React? What is Refs in React? What are the popular use cases for using Refs in React? How can we develop modular code in React? How can we create forms for user input in React? What is the difference between controlled and uncontrolled components in React? What is a Higher Order Component in React? What are the popular use cases of HOC in React? What is a Pure Component in React? Why do we use Keys in React? What were the major disadvantages of MVC framework? What is Flux? What is Redux library? What are the three main principles of Redux? What is the concept of "Single source of truth"? How does the data flow through Redux? How will your define an Action in Redux? How does Reducer work in Redux? What is Store in Redux? What are the differences between Redux and Flux? What is ReactRouter?
Top 50 Blockchain Interview Questions And Answers
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Author : Knowledge Powerhouse
language : en
Publisher:
Release Date : 2017-11-04
Top 50 Blockchain Interview Questions And Answers written by Knowledge Powerhouse and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-04 with categories.
Introduction: Top 50 Blockchain Interview Questions Blockchain is one of the fastest growing technology trends. There is a growing demand for Blockchain and Ethereum in technology companies. This book contains technical interview questions that an interviewer asks on Blockchain subject. Each question is accompanied with an answer so that you can prepare for job interview in short time. We have compiled this list after attending dozens of technical interviews in top-notch companies like- IBM, Oracle etc. This book helps you in understanding the deep concepts behind Blockchain in a Q&A format. What are the main topics covered in this book? This book covers topics on Blockchain, Solidity, Ethereum, Cryptocurrency etc. Are there answers in this book? Yes, in this book each question is followed by an answer. So you can save time in interview preparation. What is the level of questions in this book? This book contains questions that are good for Software Engineer, Senior Software Engineer, Principal Engineer and Associate Architect level. What are the sample questions in this book? What is Blockchain? What are the main characteristics of Blockchain? What is a Permissioned Blockchain? Why is it difficult to hack a Public Blockchain? What are the main characteristics of Blockchain based ledger? What is a Cryptocurrency? What is an ICO? What is Ethereum? When did Ethereum start? What is Ethereum Wallet? Can we deploy an Ethereum contract on blockchain at a specific address? What is the difference between a transaction and a call in Ethereum? How does Ethereum based accounting system prevent double spending of money from an account? How will you transfer the whole balance of an account to another account in Ethereum? How will you send amount from multiple accounts to one account in a contract? Can we run Ethereum on Bitcoin blockchain? What is Gas limit in Ethereum? What are the advantages of Ethereum over Bitcoin? What is Ether? What are Ether units? What are the properties of Block in Ethereum? Is there infinite number of Ethers in world? What is the relation between Ether and Bitcoin? What is the difference between Bitcoin and Blockchain? What is Ethereum Virtual Machine? How does Stack work in EVM? What are Message Calls in EVM? What are the different types of accounts available in EVM? What is a smart contract? What are the features of a smart contract? What is Solidity? What are the main use cases for Solidity? What is a Contract in Solidity? What is Pragma in Solidity? What are the different types of State variables in Solidity? What are the different types of function types in Solidity? What is a Mapping Solidity? What is Type Deduction in Solidity? Can we import existing files in a Solidity source file? What are the storage/memory options available in Solidity? What is DelegateCall in Solidity? What is SelfDestruct in Solidity? Why Security is important in Solidity? How will you create a simple contract to store data in Solidity? How will you create a simple contract to implement money in Solidity? Where do we store Strings in Solidity? What is the difference between Blockchain and a banking ledger? What is Hyperledger Fabric? www.knowledgepowerhouse.com
Node Js In Practice
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Author : Marc Harter
language : en
Publisher: Simon and Schuster
Release Date : 2014-12-03
Node Js In Practice written by Marc Harter and has been published by Simon and Schuster this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-12-03 with Computers categories.
Summary Node.js in Practice is a collection of fully tested examples that offer solutions to the common and not-so-common issues you face when you roll out Node. You'll dig into important topics like the ins and outs of event-based programming, how and why to use closures, how to structure applications to take advantage of end-to-end JavaScript apps, and more. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. About the Book You've decided to use Node.js for your next project and you need the skills to implement Node in production. It would be great to have Node experts Alex Young and Marc Harter at your side to help you tackle those day-to-day challenges. With this book, you can! Node.js in Practice is a collection of 115 thoroughly tested examples and instantly useful techniques guaranteed to make any Node application go more smoothly. Following a common-sense Problem/Solution format, these experience-fueled techniques cover important topics like event-based programming, streams, integrating external applications, and deployment. The abundantly annotated code makes the examples easy to follow, and techniques are organized into logical clusters, so it's a snap to find what you're looking for. Written for readers who have a practical knowledge of JavaScript and the basics of Node.js. What's Inside Common usage examples, from basic to advanced Designing and writing modules Testing and debugging Node apps Integrating Node into existing systems About the Authors Alex Young is a seasoned JavaScript developer who blogs regularly at DailyJS. Marc Harter works daily on large-scale projects including high-availability real-time applications, streaming interfaces, and other data-intensive systems. Table of Contents PART 1 NODE FUNDAMENTALS Getting started Globals: Node's environment Buffers: Working with bits, bytes, and encodings Events: Mastering EventEmitter and beyond Streams: Node's most powerful and misunderstood feature File system: Synchronous and asynchronous approaches Networking: Node's true "Hello, World" Child processes: Integrating external applications with Node PART 2 REAL-WORLD RECIPES The Web: Build leaner and meaner web applications Tests: The key to confident code Debugging: Designing for introspection and resolving issues Node in production: Deploying applications safely PART 3 WRITING MODULES Writing modules: Mastering what Node is all about
Learning Javascript Design Patterns
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Author : Addy Osmani
language : en
Publisher: "O'Reilly Media, Inc."
Release Date : 2012-07-08
Learning Javascript Design Patterns written by Addy Osmani and has been published by "O'Reilly Media, Inc." this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-07-08 with Computers categories.
With Learning JavaScript Design Patterns, you’ll learn how to write beautiful, structured, and maintainable JavaScript by applying classical and modern design patterns to the language. If you want to keep your code efficient, more manageable, and up-to-date with the latest best practices, this book is for you. Explore many popular design patterns, including Modules, Observers, Facades, and Mediators. Learn how modern architectural patterns—such as MVC, MVP, and MVVM—are useful from the perspective of a modern web application developer. This book also walks experienced JavaScript developers through modern module formats, how to namespace code effectively, and other essential topics. Learn the structure of design patterns and how they are written Understand different pattern categories, including creational, structural, and behavioral Walk through more than 20 classical and modern design patterns in JavaScript Use several options for writing modular code—including the Module pattern, Asyncronous Module Definition (AMD), and CommonJS Discover design patterns implemented in the jQuery library Learn popular design patterns for writing maintainable jQuery plug-ins "This book should be in every JavaScript developer’s hands. It’s the go-to book on JavaScript patterns that will be read and referenced many times in the future."—Andrée Hansson, Lead Front-End Developer, presis!
Web Development With Node And Express
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Author : Ethan Brown
language : en
Publisher: "O'Reilly Media, Inc."
Release Date : 2014-07
Web Development With Node And Express written by Ethan Brown and has been published by "O'Reilly Media, Inc." this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07 with Computers categories.
Learn how to build dynamic web applications with Express, a key component of the Node/JavaScript development stack. In this hands-on guide, author Ethan Brown teaches you the fundamentals through the development of a fictional application that exposes a public website and a RESTful API. You’ll also learn web architecture best practices to help you build single-page, multi-page, and hybrid web apps with Express. Express strikes a balance between a robust framework and no framework at all, allowing you a free hand in your architecture choices. With this book, frontend and backend engineers familiar with JavaScript will discover new ways of looking at web development. Create webpage templating system for rendering dynamic data Dive into request and response objects, middleware, and URL routing Simulate a production environment for testing and development Focus on persistence with document databases, particularly MongoDB Make your resources available to other programs with RESTful APIs Build secure apps with authentication, authorization, and HTTPS Integrate with social media, geolocation, and other third-party services Implement a plan for launching and maintaining your app Learn critical debugging skills This book covers Express 4.0.
Mastering Node Js
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Author : Sandro Pasquali
language : en
Publisher: Packt Publishing Ltd
Release Date : 2013-11-25
Mastering Node Js written by Sandro Pasquali and has been published by Packt Publishing Ltd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-25 with Computers categories.
This book contains an extensive set of practical examples and an easy-to-follow approach to creating 3D objects.This book is great for anyone who already knows JavaScript and who wants to start creating 3D graphics that run in any browser. You don’t need to know anything about advanced math or WebGL; all that is needed is a general knowledge of JavaScript and HTML. The required materials and examples can be freely downloaded and all tools used in this book are open source.
Effective Javascript
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Author : David Herman
language : en
Publisher: Addison-Wesley
Release Date : 2012-11-26
Effective Javascript written by David Herman and has been published by Addison-Wesley this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-11-26 with Computers categories.
“It’s uncommon to have a programming language wonk who can speak in such comfortable and friendly language as David does. His walk through the syntax and semantics of JavaScript is both charming and hugely insightful; reminders of gotchas complement realistic use cases, paced at a comfortable curve. You’ll find when you finish the book that you’ve gained a strong and comprehensive sense of mastery.” —Paul Irish, developer advocate, Google Chrome “This is not a book for those looking for shortcuts; rather it is hard-won experience distilled into a guided tour. It’s one of the few books on JS that I’ll recommend without hesitation.” —Alex Russell, TC39 member, software engineer, Google In order to truly master JavaScript, you need to learn how to work effectively with the language’s flexible, expressive features and how to avoid its pitfalls. No matter how long you’ve been writing JavaScript code, Effective JavaScript will help deepen your understanding of this powerful language, so you can build more predictable, reliable, and maintainable programs. Author David Herman, with his years of experience on Ecma’s JavaScript standardization committee, illuminates the language’s inner workings as never before—helping you take full advantage of JavaScript’s expressiveness. Reflecting the latest versions of the JavaScript standard, the book offers well-proven techniques and best practices you’ll rely on for years to come. Effective JavaScript is organized around 68 proven approaches for writing better JavaScript, backed by concrete examples. You’ll learn how to choose the right programming style for each project, manage unanticipated problems, and work more successfully with every facet of JavaScript programming from data structures to concurrency. Key features include Better ways to use prototype-based object-oriented programming Subtleties and solutions for working with arrays and dictionary objects Precise and practical explanations of JavaScript’s functions and variable scoping semantics Useful JavaScript programming patterns and idioms, such as options objects and method chaining In-depth guidance on using JavaScript’s unique “run-to-completion” approach to concurrency
Cracking The Coding Interview
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Author : Gayle Laakmann McDowell
language : en
Publisher: CreateSpace
Release Date : 2011
Cracking The Coding Interview written by Gayle Laakmann McDowell and has been published by CreateSpace this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Computer programmers categories.
Now in the 5th edition, Cracking the Coding Interview gives you the interview preparation you need to get the top software developer jobs. This book provides: 150 Programming Interview Questions and Solutions: From binary trees to binary search, this list of 150 questions includes the most common and most useful questions in data structures, algorithms, and knowledge based questions. 5 Algorithm Approaches: Stop being blind-sided by tough algorithm questions, and learn these five approaches to tackle the trickiest problems. Behind the Scenes of the interview processes at Google, Amazon, Microsoft, Facebook, Yahoo, and Apple: Learn what really goes on during your interview day and how decisions get made. Ten Mistakes Candidates Make -- And How to Avoid Them: Don't lose your dream job by making these common mistakes. Learn what many candidates do wrong, and how to avoid these issues. Steps to Prepare for Behavioral and Technical Questions: Stop meandering through an endless set of questions, while missing some of the most important preparation techniques. Follow these steps to more thoroughly prepare in less time.