Node.js uses JavaScript - a language known to millions of developers worldwide - thus giving it a much lower learning curve even for complete beginners. Using Node.js you can build simple Command Line programs or complex enterprise level web applications with equal ease. Node.js is an event-driven, server-side, asynchronous development platform with lightning speed execution. Node.js helps you to code the most complex functionalities in just a few lines of code.
Create Restful Web Application With Node.js Express FrameworkEdureka!
Node.js uses JavaScript - a language known to millions of developers worldwide - thus giving it a much lower learning curve even for complete beginners. Using Node.js you can build simple Command Line programs or complex enterprise level web applications with equal ease. Node.js is an event-driven, server-side, asynchronous development platform with lightning speed execution. Node.js helps you to code the most complex functionalities in just a few lines of code.
AngularJS, a MVW framework from Google is based on JavaScript, a language globally known to millions of developers worldwide - thus giving it a much lower learning curve even for complete beginners. Integrating AngularJS is simple as it evaluates page once HTML is in the DOM and make easier to bind Angular on top of existing applications. It can run along with Node.js, an asynchronous development platform with lightning speed execution, which makes building MEAN Stack applications easier and faster. AngularJS comes with a very good documentation and also has a wide range of third party modules making it user-friendly for developers.
Universal JS Web Applications with React - Luciano Mammino - Codemotion Rome ...Luciano Mammino
Since we started to see JS on the server side, the dream of developers has been to reduce the gap and the cost of switch between frontend/backend technologies. Today with Node.js, React and a whole ecosystem of tools, this dream is becoming real! In this talk, I am going to discuss Universal (a.k.a. Isomorphic) JavaScript and present some practical example regarding the significant patterns related to routing, data retrieval and rendering. I will use Node, React, Webpack, Babel and React Router and give you a series of example to get you started easily with this new technology trend.
(interactive slides at http://slides.com/lucianomammino/universal-js-web-applications-with-react-codemotion-rome-2017 )
AngularJS, a MVW framework from Google is based on JavaScript, a language globally known to millions of developers worldwide - thus giving it a much lower learning curve even for complete beginners. Integrating AngularJS is simple as it evaluates page once HTML is in the DOM and make easier to bind Angular on top of existing applications. It can run along with Node.js, an asynchronous development platform with lightning speed execution, which makes building Mean Stack applications easier and faster. AngularJS comes with a very good documentation and also have wide range of third party modules making it user-friendly for developers.
Android is becoming one of the biggest platforms for programmers today. There is a huge demand for skilled Android Developers all over the world. Most businesses across multiple domains are building Android Apps both for enterprise and retail products. Whether you are student or in the IT industry, possessing Android Development skills will help you take the next big leap in your career.
Create Restful Web Application With Node.js Express FrameworkEdureka!
Node.js uses JavaScript - a language known to millions of developers worldwide - thus giving it a much lower learning curve even for complete beginners. Using Node.js you can build simple Command Line programs or complex enterprise level web applications with equal ease. Node.js is an event-driven, server-side, asynchronous development platform with lightning speed execution. Node.js helps you to code the most complex functionalities in just a few lines of code.
AngularJS, a MVW framework from Google is based on JavaScript, a language globally known to millions of developers worldwide - thus giving it a much lower learning curve even for complete beginners. Integrating AngularJS is simple as it evaluates page once HTML is in the DOM and make easier to bind Angular on top of existing applications. It can run along with Node.js, an asynchronous development platform with lightning speed execution, which makes building MEAN Stack applications easier and faster. AngularJS comes with a very good documentation and also has a wide range of third party modules making it user-friendly for developers.
Universal JS Web Applications with React - Luciano Mammino - Codemotion Rome ...Luciano Mammino
Since we started to see JS on the server side, the dream of developers has been to reduce the gap and the cost of switch between frontend/backend technologies. Today with Node.js, React and a whole ecosystem of tools, this dream is becoming real! In this talk, I am going to discuss Universal (a.k.a. Isomorphic) JavaScript and present some practical example regarding the significant patterns related to routing, data retrieval and rendering. I will use Node, React, Webpack, Babel and React Router and give you a series of example to get you started easily with this new technology trend.
(interactive slides at http://slides.com/lucianomammino/universal-js-web-applications-with-react-codemotion-rome-2017 )
AngularJS, a MVW framework from Google is based on JavaScript, a language globally known to millions of developers worldwide - thus giving it a much lower learning curve even for complete beginners. Integrating AngularJS is simple as it evaluates page once HTML is in the DOM and make easier to bind Angular on top of existing applications. It can run along with Node.js, an asynchronous development platform with lightning speed execution, which makes building Mean Stack applications easier and faster. AngularJS comes with a very good documentation and also have wide range of third party modules making it user-friendly for developers.
Android is becoming one of the biggest platforms for programmers today. There is a huge demand for skilled Android Developers all over the world. Most businesses across multiple domains are building Android Apps both for enterprise and retail products. Whether you are student or in the IT industry, possessing Android Development skills will help you take the next big leap in your career.
A simple application called cvdb is used to illustrate best practices in combining AngularJS as a client browser technology with a Spring based Java server.
The server architecture utilizes the new Spring Boot module that was introduced with Spring 4 together with other Spring modules like Spring Data, Spring Security, Spring MVC.
QueryDSL is used to access a H2 in memory database.
How to build a chat application with react js, nodejs, and socket.ioKaty Slemon
In the tutorial, we will learn about how to build a chat app using ReactJs, NodeJS, and Socket.IO. Clone the Github repository and play around with the code.
A Gentle Introduction to Angular Schematics - Angular SF 2019Matt Raible
You might’ve heard of Angular Schematics, but do you know what they do? Learn how you can use this powerful tool to develop workflows and simplify configurations for your Angular projects.
Blog post: https://developer.okta.com/blog/2019/02/13/angular-schematics
Source code: https://github.com/oktadeveloper/okta-angular-schematics-example
Screencast: https://youtu.be/ANwZIt3Ni2s
MiTM Attacks in Android Apps - TDC 2014ivanjokerbr
With MITM attack, it is possible to manipulate data send to Android app with several security implications. Only https is able to prevent these situations.
A Gentle Introduction to Angular Schematics - Devoxx Belgium 2019Matt Raible
You might’ve heard of Angular Schematics, but do you know what they do? Learn how you can use this powerful tool to develop workflows and simplify configurations for your Angular projects.
In this session, you'll learn how to create a schematic, how to test it, and how you can use them with non-Angular projects.
* YouTube video: https://youtu.be/bLLJqagO_dg
* Blog post: https://developer.okta.com/blog/2019/02/13/angular-schematics
* GitHub repo: https://github.com/oktadeveloper/schematics
Midas - on-the-fly schema migration tool for MongoDB.Dhaval Dalal
Midas is an on-the-fly schema migration for MongoDB.
Currently, applications have to hand-roll their own schema migration infrastructure or use some third-party tool.
It is difficult to migrate TBs of data without downtime (unacceptable from SLA stand-point!).
This is where Midas fills the gap.
It intercepts responses at MongoDB Protocol level and upgrades or downgrades document schema in-transit.
As Midas works at protocol level, it is agnostic of Language specific MongoDB drivers (Ruby, Python, C#
and Java drivers) and their versions within those languages.
Further, Midas is agnostic of the MongoDB configurations like Standalone, Replica Sets, Sharded environments.
Features Summary:
* Expansion operations - add, copy, merge, split, transform.
* Contraction operations - remove
* Schema migration for multiple applications simultaneously
* Support multi node configuration for application
* Without shutting down Midas, you can -
* Add or remove applications on-the-fly
* Add or remove nodes on-the-fly
* Add or remove deltas/changeset on-the-fly
The WebView Role in Hybrid ApplicationsHaim Michael
As of Android 4.4, the WebView class is based on the Chromium web browser. As a result of that, many of the difficulties we faced when developing hybrid applications for the android platform no longer exist. The meeting will start with overviewing the fundamental concept of hybrid applications. We will learn how to write code in JavaScript that while running inside the WebView it calls functions we define in Java and vice versa. We will see how we can debug code in JavaScript running inside the WebView and go through the many advanced capabilities we can enjoy when using the WebView class. In addition, we will understand how PhoneGap works and what might be the best practice for using it.
More information about the Java course I deliver can be found at java.course.lifemichael.com
More information about the Android course I deliver can be found at android.course.lifemichael.com
Front End Development for Back End Java Developers - NYJavaSIG 2019Matt Raible
Are you a backend Java developer that's being pushed into front-end development? Are you frustrated with all the JavaScript frameworks and build tools you have to learn to be a good UI developer? If so, this session is for you! We'll explore the landscape of UI development, including web standards, frameworks, and what’s on the horizon (e.g., micro frontends).
Angular 1.x reloaded: improve your app now! and get ready for 2.0Carlo Bonamico
The buzz about the upcoming major reincarnation of AngularJS, with its hot mix of excitement and critics, has somehow shadowed the immediate gains enabled by the recent 1.3 and 1.4 releases.
This code-based talk will introduce concepts such as the "Controller As" syntax, component-based directives, the new router and bind once, to demonstrate how mixing these currently available Angular features with good design patterns (and a bit of ES6) provides concrete improvements in performance, modularity, testability and developer productivity to our apps now.
Furthermore, it will show how the main ideas at the basis of Angular 2.0 (API simplification, consistency, even more componentization and interoperability with ES6 and Web Components) can be applied to the design and implementation of 1.x applications, helping us both being more productive now & simplifying the upgrade to the "new" Angular.
Real World AngularJS recipes: beyond TodoMVCCarlo Bonamico
Codemotion Rome 2015 Talk with Sonia Pini
You got captured by Angular power and simplicity, and have chosen it for your next project (or you are thinking about it). Creating a prototype with Data Binding, scopes and MVVM was relatively quick and easy. But what do you need to effectively complete and bring a complex application in Production? We will discuss practical recipes from our real world experiences for choosing between ES5, ES6 and TypeScript, designing a modular, event-driven application structure, creating or selecting components and directives, implementing authentication, managing errors and logging, testing and packaging.
[Devoxx Morocco 2015] Apache Cordova In ActionHazem Saleh
Apache Cordova is a platform for building native mobile apps using common Web technologies (HTML, CSS and JavaScript). Apache Cordova offers a set of APIs that allow the mobile app developers to utilize mobile native functions such as (Audio, Camera, Contacts …etc) using JavaScript. jQuery mobile is one of the best mobile web application frameworks, which allows the web developers to develop neat mobile web applications. This session discusses why there is a need for Hybrid mobile development, the current challenges of mobile development, and how using Apache Cordova can help in overcoming many of these technical challenges. It also highlights the best practices of using Apache Cordova with jQuery mobile. Finally, it demonstrates a real Cordova mobile app for showing the audience the best practices of designing, developing, and deploying hybrid Android and iOS mobile apps.
AppFuse is an open source project/application that uses best-of-breed Java open source tools to help you develop web applications quickly and efficiently. Not only does it provide documentation on how to develop light-weight POJO-based applications, it includes features that many applications need out-of-the-box: authentication and authorization, remember me, password hint, skinnability, file upload, Ajax libraries, signup and SSL switching. This is one of the main features in AppFuse that separates it from the other "CRUD Generation" frameworks like Ruby on Rails, Trails and Grails. AppFuse is already an application when you start using it, which means code examples are already in your project. Furthermore, because features already exist, the amount of boiler-plate code that most projects need will be eliminated.
In this session, you will learn Seven Simple Reasons to Use AppFuse. If you don't use it to start your own projects, hopefully you will see that it provides much of the boiler-plate code that can be used in Java-based web applications. Since it's Apache Licensed, you're more than welcome to copy/paste any code from it into your own applications.
Also see article published at:
http://www.ibm.com/developerworks/java/library/j-appfuse/index.html
NodeJS : Communication and Round Robin WayEdureka!
Node.js uses JavaScript - a language known to millions of developers worldwide - thus giving it a much lower learning curve even for complete beginners. Using Node.js you can build simple Command Line programs or complex enterprise level web applications with equal ease. Node.js is an event-driven, server-side, asynchronous development platform with lightning speed execution. Node.js helps you to code the most complex functionalities in just a few lines of code.
Node JS Express: Steps to Create Restful Web AppEdureka!
Node.js uses JavaScript - a language known to millions of developers worldwide - thus giving it a much lower learning curve even for complete beginners. Using Node.js you can build simple Command Line programs or complex enterprise level web applications with equal ease. Node.js is an event-driven, server-side, asynchronous development platform with lightning speed execution. It is open source and cross-platform, running on OS X, Linux and Windows. It also has an open source community that produces amazing modules available for use in your project for additional functionalities. Node.js helps you to code the most complex functionalities in just a few lines of code.
A simple application called cvdb is used to illustrate best practices in combining AngularJS as a client browser technology with a Spring based Java server.
The server architecture utilizes the new Spring Boot module that was introduced with Spring 4 together with other Spring modules like Spring Data, Spring Security, Spring MVC.
QueryDSL is used to access a H2 in memory database.
How to build a chat application with react js, nodejs, and socket.ioKaty Slemon
In the tutorial, we will learn about how to build a chat app using ReactJs, NodeJS, and Socket.IO. Clone the Github repository and play around with the code.
A Gentle Introduction to Angular Schematics - Angular SF 2019Matt Raible
You might’ve heard of Angular Schematics, but do you know what they do? Learn how you can use this powerful tool to develop workflows and simplify configurations for your Angular projects.
Blog post: https://developer.okta.com/blog/2019/02/13/angular-schematics
Source code: https://github.com/oktadeveloper/okta-angular-schematics-example
Screencast: https://youtu.be/ANwZIt3Ni2s
MiTM Attacks in Android Apps - TDC 2014ivanjokerbr
With MITM attack, it is possible to manipulate data send to Android app with several security implications. Only https is able to prevent these situations.
A Gentle Introduction to Angular Schematics - Devoxx Belgium 2019Matt Raible
You might’ve heard of Angular Schematics, but do you know what they do? Learn how you can use this powerful tool to develop workflows and simplify configurations for your Angular projects.
In this session, you'll learn how to create a schematic, how to test it, and how you can use them with non-Angular projects.
* YouTube video: https://youtu.be/bLLJqagO_dg
* Blog post: https://developer.okta.com/blog/2019/02/13/angular-schematics
* GitHub repo: https://github.com/oktadeveloper/schematics
Midas - on-the-fly schema migration tool for MongoDB.Dhaval Dalal
Midas is an on-the-fly schema migration for MongoDB.
Currently, applications have to hand-roll their own schema migration infrastructure or use some third-party tool.
It is difficult to migrate TBs of data without downtime (unacceptable from SLA stand-point!).
This is where Midas fills the gap.
It intercepts responses at MongoDB Protocol level and upgrades or downgrades document schema in-transit.
As Midas works at protocol level, it is agnostic of Language specific MongoDB drivers (Ruby, Python, C#
and Java drivers) and their versions within those languages.
Further, Midas is agnostic of the MongoDB configurations like Standalone, Replica Sets, Sharded environments.
Features Summary:
* Expansion operations - add, copy, merge, split, transform.
* Contraction operations - remove
* Schema migration for multiple applications simultaneously
* Support multi node configuration for application
* Without shutting down Midas, you can -
* Add or remove applications on-the-fly
* Add or remove nodes on-the-fly
* Add or remove deltas/changeset on-the-fly
The WebView Role in Hybrid ApplicationsHaim Michael
As of Android 4.4, the WebView class is based on the Chromium web browser. As a result of that, many of the difficulties we faced when developing hybrid applications for the android platform no longer exist. The meeting will start with overviewing the fundamental concept of hybrid applications. We will learn how to write code in JavaScript that while running inside the WebView it calls functions we define in Java and vice versa. We will see how we can debug code in JavaScript running inside the WebView and go through the many advanced capabilities we can enjoy when using the WebView class. In addition, we will understand how PhoneGap works and what might be the best practice for using it.
More information about the Java course I deliver can be found at java.course.lifemichael.com
More information about the Android course I deliver can be found at android.course.lifemichael.com
Front End Development for Back End Java Developers - NYJavaSIG 2019Matt Raible
Are you a backend Java developer that's being pushed into front-end development? Are you frustrated with all the JavaScript frameworks and build tools you have to learn to be a good UI developer? If so, this session is for you! We'll explore the landscape of UI development, including web standards, frameworks, and what’s on the horizon (e.g., micro frontends).
Angular 1.x reloaded: improve your app now! and get ready for 2.0Carlo Bonamico
The buzz about the upcoming major reincarnation of AngularJS, with its hot mix of excitement and critics, has somehow shadowed the immediate gains enabled by the recent 1.3 and 1.4 releases.
This code-based talk will introduce concepts such as the "Controller As" syntax, component-based directives, the new router and bind once, to demonstrate how mixing these currently available Angular features with good design patterns (and a bit of ES6) provides concrete improvements in performance, modularity, testability and developer productivity to our apps now.
Furthermore, it will show how the main ideas at the basis of Angular 2.0 (API simplification, consistency, even more componentization and interoperability with ES6 and Web Components) can be applied to the design and implementation of 1.x applications, helping us both being more productive now & simplifying the upgrade to the "new" Angular.
Real World AngularJS recipes: beyond TodoMVCCarlo Bonamico
Codemotion Rome 2015 Talk with Sonia Pini
You got captured by Angular power and simplicity, and have chosen it for your next project (or you are thinking about it). Creating a prototype with Data Binding, scopes and MVVM was relatively quick and easy. But what do you need to effectively complete and bring a complex application in Production? We will discuss practical recipes from our real world experiences for choosing between ES5, ES6 and TypeScript, designing a modular, event-driven application structure, creating or selecting components and directives, implementing authentication, managing errors and logging, testing and packaging.
[Devoxx Morocco 2015] Apache Cordova In ActionHazem Saleh
Apache Cordova is a platform for building native mobile apps using common Web technologies (HTML, CSS and JavaScript). Apache Cordova offers a set of APIs that allow the mobile app developers to utilize mobile native functions such as (Audio, Camera, Contacts …etc) using JavaScript. jQuery mobile is one of the best mobile web application frameworks, which allows the web developers to develop neat mobile web applications. This session discusses why there is a need for Hybrid mobile development, the current challenges of mobile development, and how using Apache Cordova can help in overcoming many of these technical challenges. It also highlights the best practices of using Apache Cordova with jQuery mobile. Finally, it demonstrates a real Cordova mobile app for showing the audience the best practices of designing, developing, and deploying hybrid Android and iOS mobile apps.
AppFuse is an open source project/application that uses best-of-breed Java open source tools to help you develop web applications quickly and efficiently. Not only does it provide documentation on how to develop light-weight POJO-based applications, it includes features that many applications need out-of-the-box: authentication and authorization, remember me, password hint, skinnability, file upload, Ajax libraries, signup and SSL switching. This is one of the main features in AppFuse that separates it from the other "CRUD Generation" frameworks like Ruby on Rails, Trails and Grails. AppFuse is already an application when you start using it, which means code examples are already in your project. Furthermore, because features already exist, the amount of boiler-plate code that most projects need will be eliminated.
In this session, you will learn Seven Simple Reasons to Use AppFuse. If you don't use it to start your own projects, hopefully you will see that it provides much of the boiler-plate code that can be used in Java-based web applications. Since it's Apache Licensed, you're more than welcome to copy/paste any code from it into your own applications.
Also see article published at:
http://www.ibm.com/developerworks/java/library/j-appfuse/index.html
NodeJS : Communication and Round Robin WayEdureka!
Node.js uses JavaScript - a language known to millions of developers worldwide - thus giving it a much lower learning curve even for complete beginners. Using Node.js you can build simple Command Line programs or complex enterprise level web applications with equal ease. Node.js is an event-driven, server-side, asynchronous development platform with lightning speed execution. Node.js helps you to code the most complex functionalities in just a few lines of code.
Node JS Express: Steps to Create Restful Web AppEdureka!
Node.js uses JavaScript - a language known to millions of developers worldwide - thus giving it a much lower learning curve even for complete beginners. Using Node.js you can build simple Command Line programs or complex enterprise level web applications with equal ease. Node.js is an event-driven, server-side, asynchronous development platform with lightning speed execution. It is open source and cross-platform, running on OS X, Linux and Windows. It also has an open source community that produces amazing modules available for use in your project for additional functionalities. Node.js helps you to code the most complex functionalities in just a few lines of code.
Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.
Node.js is an open source command line tool built for the server side JavaScript code.
To create a project with node.js either for mobile applications to access data or for various clients based websites which requires accessing data; it requires building a basic API. These projects, mostly built with express.js and a mango database. In this article we will understand
the basic of Node.js, express middleware and API creation/Restful web services using Node.js with one basic example.
The server side the back-end app development of your product is arguably its most important part. Among all likely back-end app development skills to select from, Node.js is one of the basics. It involves the vast majority of modern business fields and real cases. Many smaller business and startups survey their lead and leverage the technology in developing web development.
Web development with Node.js, Fifth Edition
The most popular server-side web development platform is Node.js, which enables programmers to utilize the same tools and paradigms for both server-side and client-side applications. This revised fifth edition of Node.js Web Development walks you through current ideas, methods, and best practices for utilizing Node.js while concentrating on the new capabilities of Node.js 14, Express 4.x, and ECMAScript.
He book begins by guiding you through the fundamental ideas of creating server-side web applications with Node.js. You'll discover how to create a full-featured Node.js web application with a backend database tier to enable you to experiment with various databases. Terraform and Docker Swarm will be used to deploy the program to actual web servers, such as a cloud hosting infrastructure based on AWS EC2, while integrating additional technologies.
As you advance, you'll learn about functional and unit testing as well as using Docker to install test infrastructure. Finally, you'll learn how to implement a variety of app security measures using best practices, tighten the security of Node.js apps, provision HTTPS using Let's Encrypt, and more. The book will assist you in applying your knowledge across the complete life cycle of designing a web app with each chapter. You will have obtained useful Node.js web development expertise by the end of this book, and you will be able to create and deploy your own applications using a public web hosting service.
What Node.js is
Every frontend web developer has access to JavaScript, making it a tremendously popular programming language that has gained the stigma of being used just for client-side code in web pages. Given that you choose to read this book, there's a good chance you've heard of Node.js, a framework for writing JavaScript code outside of web browsers. Node.js, which has been around for ten years, is now a well-established programming environment that is utilized in numerous initiatives of various sizes.
You will learn about Node.js in this book. You will have gained knowledge of every stage of creating server-side web applications using Node.js by the time you finish this book, from conception to deployment and security. In writing this book, we made the following assumptions:
• You are already proficient in writing software.
• You are knowledgeable about JavaScript.
• You have some experience creating web applications in several languages.
Do we stick with a new programming tool only because it's the trendy new tool when we assess it? Maybe some of us do that, but the mature course of action is to compare each tool. The technical justification for choosing Node.js is what this chapter is all about. Prior to writing any code, it is important to understand what Node.js is and how it fits into the larger market for software development tools. Then, realizing that tinkering about in live code is frequently the greatest way to learn.
In this presentation, N. Kishorekumar, a Drupal Consultant at Valuebound will give an overview of Node.js, a JavaScript runtime built on Chrome's V8 JavaScript engine. He will discuss here the background, theories and the relevance of Node.js.
*****************************************
Get Socialistic
Our website: http://valuebound.com/
LinkedIn: https://www.linkedin.com/company/valuebound/
Facebook: https://www.facebook.com/valuebound/
Twitter: https://twitter.com/valuebound
Node.js
JavaScript code may be run outside of a web browser Thanks to the open-source, cross-platform runtime environment known as Node.js. Ryan Dahl first presented it in 2009, and it has subsequently gained popularity as a server-side programming language.
In this post, we'll examine Node. Js' fundamentals and how server-side programming might benefit from it. We'll also look at some of Node. Js' essential attributes have helped it become so well-liked by programmers.
Overview of Node.js
A server-side runtime environment called Node.js was constructed on top of Google's V8 JavaScript engine. Developers can now employ JavaScript, which was previously solely used on the client side, to create server-side code. With the help of Node.js, programmers can build highly scalable, event-driven apps that can manage several concurrent connections.
History of Node.js
Developer Ryan Dahl first released Node.js in 2009 with the goal of enabling JavaScript programmers to build highly scalable network applications. He developed Node.js on top of the Google Chrome-compatible V8 JavaScript engine and made it available as an open-source project.
Benefits of Node.js
The use of Node.js for server-side development has a number of advantages. A few of these are:
Performance: The V8 JavaScript engine, which is highly optimized for performance, is the foundation upon which Node.js is constructed. Because of this, Node.js apps can handle numerous connections at once without experiencing performance issues.
Scalability: Node.js applications have a great degree of scalability and can manage numerous concurrent connections without the installation of additional hardware.
Easy to Learn:Node.js is reasonably simple to learn because it leverages JavaScript, a well-known language among developers.
Large Community: Node.js has a sizable developer community that supports one another and contributes to the open-source project.
Introduction to Node.js
Setting up Node.js
You must install Node.js on your computer before you can begin using it. Node.js can be downloaded from the official Node.js website, which also provides installation guidance.
figuring out npm
Developers may quickly install and manage dependencies for their Node.js apps using npm (Node Package Manager), a Node.js package manager. There is no need to install npm individually because it is part of Node.js.
Basics of Node.js
Knowledge of the Event Loop
On top of an event-driven, non-blocking I/O mechanism, Node.js is constructed. This indicates that Node.js processes numerous jobs concurrently by using an event loop rather than waiting for I/O operations to finish before going on to the next task. Because of this, Node.js apps can handle numerous connections at once without experiencing performance issues.
Similar to Day In A Life Of A Node.js Developer (20)
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Register Here: https://resources.edureka.co/21-days-learning-plan-webinar/
In light of the complete national lockdown for 21 days, we invite you to join a FREE webinar by renowned Mentor and Advisor, Nitin Gupta as he helps you create a 21-day learning gameplan to maximize returns for your career.
The webinar will help freshers and experienced professionals to capitalize on these 21 days and figure out the best technologies to learn while confined to home.
You will also get all your questions and doubts resolved in real-time.
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Top 10 Dying Programming Languages in 2020 | EdurekaEdureka!
YouTube Link: https://youtu.be/LSM7hD6GM4M
Get Edureka Certified in Trending Programming Languages: https://www.edureka.co
In this highly competitive IT industry, everyone wants to learn programming languages that will keep them ahead of the game. But knowing what to learn so you gain the most out of your knowledge is a whole other ball game. So, we at Edureka have prepared a list of Top 10 Dying Programming Languages 2020 that will help you to make the right choice for your career. Meanwhile, if you ever wondered about which languages are slated for continuing uptake and possible greatness, we have a list for that, too.
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Top 5 Trending Business Intelligence Tools | EdurekaEdureka!
YouTube Link: https://youtu.be/eEwq_mPd1iI
Edureka BI Certification Training Courses: https://www.edureka.co/bi-and-visualization-certification-courses
Receiving insights and finding trends is absolutely critical for businesses to scale and adapt as the years go on. This is exactly what business intelligence does and the best thing about these software solutions is that their potential uses are practically unlimited.
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Tableau Tutorial for Data Science | EdurekaEdureka!
YouTube Link:https://youtu.be/ZHNdSKMluI0
Edureka Tableau Certification Training: https://www.edureka.co/tableau-certification-training
This Edureka's PPT on "Tableau for Data Science" will help you to utilize Tableau as a tool for Data Science, not only for engagement but also comprehension efficiency. Through this PPT, you will learn to gain the maximum amount of insight with the least amount of effort.
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Edureka Python Certification Training: https://www.edureka.co/data-science-python-certification-course
This Edureka PPT on 'Python Programming' will help you learn Python programming basics with the help of interesting hands-on implementations.
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Get Edureka Certified in Trending Project Management Certifications: https://www.edureka.co/project-management-and-methodologies-certification-courses
Whether you want to scale up your career or are trying to switch your career path, Project Management Certifications seems to be a perfect choice in either case. So, we at Edureka have prepared a list of Top 5 Project Management Certifications that you must check out in 2020 for a major career boost.
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Top Maven Interview Questions in 2020 | EdurekaEdureka!
YouTube Link: https://youtu.be/5iTcAR4fScM
**DevOps Certification Courses - https://www.edureka.co/devops-certification-training***
This video on 'Maven Interview Questions' discusses the most frequently asked Maven Interview Questions. This PPT will help give you a detailed explanation of the topics which will help you in acing the interviews.
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** Linux Administration Certification Training - https://www.edureka.co/linux-admin **
Linux Mint is the first operating system that people from Windows or Mac are drawn towards when they have to switch to Linux in their work environment. Linux Mint has been around since the year 2006 and has grown and matured into a very user-friendly OS. Do watch the PPT till the very end to see all the demonstrations.
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How to Deploy Java Web App in AWS| EdurekaEdureka!
YouTube Link:https://youtu.be/Ozc5Yu_IcaI
** Edureka AWS Architect Certification Training - https://www.edureka.co/aws-certification-training**
This Edureka PPT shows how to deploy a java web application in AWS using AWS Elastic Beanstalk. It also describes the advantages of using AWS for this purpose.
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*** Edureka Digital Marketing Course: https://www.edureka.co/post-graduate/digital-marketing-certification***
This Edureka PPT on "Top 10 Reasons to Learn Digital Marketing" will help you understand why you should take up Digital Marketing
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** RPA Training: https://www.edureka.co/robotic-process-automation-training**
This PPT on RPA in 2020 will provide a glimpse of the accomplishments and benefits provided by RPA. Also, it will list out the new changes and technologies that will collaborate with RPA in 2020.
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**DevOps Certification Courses - https://www.edureka.co/devops-certification-training **
This PPT shows how to configure Jenkins to receive email notifications. It also includes a demo that shows how to do it in 6 simple steps in the Windows machine.
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EA Algorithm in Machine Learning | EdurekaEdureka!
YouTube Link: https://youtu.be/DIADjJXrgps
** Machine Learning Certification Training: https://www.edureka.co/machine-learning-certification-training **
This Edureka PPT on 'EM Algorithm In Machine Learning' covers the EM algorithm along with the problem of latent variables in maximum likelihood and Gaussian mixture model.
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PGP in AI and Machine Learning (9 Months Online Program): https://www.edureka.co/post-graduate/machine-learning-and-ai
This Edureka PPT on "Cognitive AI" explains cognitive computing and how it helps in making better human decisions at work. Also, it explains the differences between cognitive computing and artificial intelligence.
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Edureka AWS Architect Certification Training - https://www.edureka.co/aws-certification-training
This Edureka PPT on AWS Cloud Practitioner will provide a complete guide to your AWS Cloud Practitioner Certification exam. It will explain the exam details, objectives, why you should get certified and also how AWS certification will help your career.
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Blue Prism Top Interview Questions | EdurekaEdureka!
YouTube Link: https://youtu.be/ykbRdUNIbyQ
** RPA Training: https://www.edureka.co/robotic-process-automation-certification-courses**
This PPT on Blue Prism Interview Questions will cover the Top 50 Blue Prism related questions asked in your interviews.
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AWS Architect Certification Training: https://www.edureka.co/aws-certification-training
This PPT will help you in understanding how AWS deals smartly with Big Data. It also shows how AWS can solve Big Data challenges with ease.
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A star algorithm | A* Algorithm in Artificial Intelligence | EdurekaEdureka!
YouTube Link: https://youtu.be/amlkE0g-YFU
** Artificial Intelligence and Deep Learning: https://www.edureka.co/ai-deep-learni... **
This Edureka PPT on 'A Star Algorithm' teaches you all about the A star Algorithm, the uses, advantages and disadvantages and much more. It also shows you how the algorithm can be implemented practically and has a comparison between the Dijkstra and itself.
Check out our playlist for more videos: http://bit.ly/2taym8X
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Kubernetes Installation on Ubuntu | EdurekaEdureka!
YouTube Link: https://youtu.be/UWg3ORRRF60
Kubernetes Certification: https://www.edureka.co/kubernetes-certification
This Edureka PPT will help you set up a Kubernetes cluster having 1 master and 1 node. The detailed step by step instructions is demonstrated in this PPT.
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DevOps Training: https://www.edureka.co/devops-certification-training
This Edureka DevOps Tutorial for Beginners talks about What is DevOps and how it works. You will learn about several DevOps tools (Git, Jenkins, Docker, Puppet, Ansible, Nagios) involved at different DevOps stages such as version control, continuous integration, continuous delivery, continuous deployment, continuous monitoring.
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State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Search and Society: Reimagining Information Access for Radical FuturesBhaskar Mitra
The field of Information retrieval (IR) is currently undergoing a transformative shift, at least partly due to the emerging applications of generative AI to information access. In this talk, we will deliberate on the sociotechnical implications of generative AI for information access. We will argue that there is both a critical necessity and an exciting opportunity for the IR community to re-center our research agendas on societal needs while dismantling the artificial separation between the work on fairness, accountability, transparency, and ethics in IR and the rest of IR research. Instead of adopting a reactionary strategy of trying to mitigate potential social harms from emerging technologies, the community should aim to proactively set the research agenda for the kinds of systems we should build inspired by diverse explicitly stated sociotechnical imaginaries. The sociotechnical imaginaries that underpin the design and development of information access technologies needs to be explicitly articulated, and we need to develop theories of change in context of these diverse perspectives. Our guiding future imaginaries must be informed by other academic fields, such as democratic theory and critical theory, and should be co-developed with social science scholars, legal scholars, civil rights and social justice activists, and artists, among others.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Assuring Contact Center Experiences for Your Customers With ThousandEyes
Day In A Life Of A Node.js Developer
1. www.edureka.co/mastering-node-js
View Mastering Node.js course details at www.edureka.co/mastering-node-js
Day In A Life Of A Node.js Developer
For Queries:
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For more details please contact us:
US : 1800 275 9730 (toll free)
INDIA : +91 88808 62004
Email Us : sales@edureka.co
2. Slide 2 www.edureka.co/mastering-node-js
Objectives
At the end of the session you will be able to:
Understand basics of Node.js Development
Use Node's Package Manager
Develop Server Side Applications
Create Restful APIs
Test and Debug Code
3. Slide 3 www.edureka.co/mastering-node-jsSlide 3
What is Node.js ?
Node.js is an open source, cross-platform runtime environment for server-side and networking applications
Node.js applications are written in JavaScript, and can be run within the Node.js runtime on OS X, Microsoft
Windows, Linux, FreeBSD, NonStop and IBM. -- Wikipedia
This is based on Google’s V8 JavaScript Engine
4. Slide 4 www.edureka.co/mastering-node-jsSlide 4
What is Node.js ? (Contd.)
Guess What ?
» IT’s SINGLE THREADED !!
» No worries about : race conditions, deadlocks and other problems that go with multi-threading.
» “Almost no function in Node directly performs I/O, so the process never blocks. Because nothing blocks,
less-than-expert programmers are able to develop scalable systems.” - (courtesy : nodejs.org)
Event
Loop
Event
Queue
Thread Pool
file system
network
process
other
5. Slide 5 www.edureka.co/mastering-node-jsSlide 5
Use-Cases of Node.js
1. Walmart executives believe that the benefit of using Node.js was
far greater than any risk in adopting a new technology
2. They re-engineered their mobile app to run on Node.js where all
the front end code gets executed on back-end
3. “We rely on services all over the world,” says Almaer (V.P Mobile
Architecture) “We do not control all of those services. Node
allows us to front all these services… and scale up very nicely.
It’s perfect for what we’re doing in mobile.”
Server Side Web Applications
1. Server Side Web Applications
Advantages
6. Slide 6 www.edureka.co/mastering-node-jsSlide 6
Use-Cases of Node.js (Contd.)
1. Linkedin is also leaning heavily on Node.js (Linkedin mobile and
tablet app is 95% html/web based)
2. “We’re still full-on Node. We are excited that it can scale,” says
Kiran Prasad (Head of Linkedin’s Mobile Development Team).
“Over the past few months, we’ve made performance tweaks so
we can scale even more. On four boxes, we can now handle 20
times the load we were handling before.”
Highly Scalable
1. Server Side Web Applications
2. Highly Scalable
Advantages
7. Slide 7 www.edureka.co/mastering-node-jsSlide 7
Use-Cases of Node.js (Contd.)
1. When he first built Voxer, Matt Ranney (Voxer’s CTO) ran a test
to see how many connections he could open on a single server.
"I just decided to open as many connections as I could, just to
see where things would fall down," Ranney says
2. "With Node, I could open, well, all of them. I couldn't open any
more connections without getting more IP addresses on my test
machine. Node uses such small amounts of memory, it's
astounding. I ran out of port numbers."
Low Memory Consumption
1. Server Side Web Applications
2. Highly Scalable
3. Low Memory Consumption
Advantages
8. Slide 8 www.edureka.co/mastering-node-jsSlide 8
Basics of Node.js : npm
npm used to stand for Node Package Manager. However it is not an acronym anymore. npm is not a Node.js
specific tool
npm is a registry of reusable modules and packages written by various developers
» Yes, you can publish your own npm packages
There are two ways to install npm packages :
» Locally : To use and depend on the package from your own module or project
» Globally: To use across the system, like a command line tool
9. Slide 9 www.edureka.co/mastering-node-jsSlide 9
1. eBay launched ql.io, a gateway for HTTP APIs, using Node.js as
the runtime stack. eBay was able to tune a regular quality
Ubuntu workstation to handle more than 120,000 active
connections per Node.js process with each connection
consuming about 2K of memory.
Advantages
Use-Cases of Node.js (Contd.)
1. Server Side Web Applications
2. Highly Scalable
3. Low Memory Consumption
4. Increase engineering clock
speed
5. Improve end user experience
Increase engineering clock speed
Improve end user experience
11. Slide 11Slide 11Slide 11 www.edureka.co/mastering-node-js
To run the server, copy the code in any folder and run on the command line: node example.js
» As you can see above, “http” is a built-in module that is shipped with node.js
var http = require('http');
http.createServer(function (req, res)
{
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello Worldn');
}).listen(1337, '127.0.0.1');
console.log('Server running at http://127.0.0.1:1337/');
Basics of Node.js: A Simple Web Server
12. Slide 12 www.edureka.co/mastering-node-jsSlide 12Slide 12Slide 12
Two Way Communication : Socket.io
Socket.io is a fast, real-time engine. It is an npm package.
Transmitting messages and Receiving message between client and server is simple: Events.
On server/client when sending a message use socket.emit(‘eventname’,data). “eventname” can be any string
And data can be any data: even Binary data!
On server/client when you want to listen to events-messages use socket.on(‘eventname’,callbackFunction).
Where the callbackFunction is a function that accepts a Data argument : Data sent by the other party.
13. Slide 13 www.edureka.co/mastering-node-jsSlide 13Slide 13Slide 13
A simple example:
//Server-side
var app = require('express')();
var server = require('http').Server(app);
var io = require('socket.io')(server);
server.listen(80);
app.get('/', function (req, res) {
res.sendfile(__dirname + '/index.html');
});
io.on('connection', function (socket) {
socket.emit('news', { hello: 'world' });
socket.on('my other event', function (data) {
console.log(data);
});
});
//client-side
<script src="/socket.io/socket.io.js"></script>
<script>
var socket = io.connect('http://localhost');
socket.on('news', function (data) {
console.log(data);
socket.emit('my other event', { my: 'data' });
});
</script>
Creating Simple Chat Application
14. Slide 14 www.edureka.co/mastering-node-jsSlide 14Slide 14Slide 14
Besides ‘connect’, ‘message’ and ‘disconnect’ you can use any custom event names
You could also have a separation of concerns by namespacing. Namespacing also means, that the same
websocket connection is used but is multiplexed
var io = require('socket.io').listen(80);
var chat = io
.of('/chat')
.on('connection', function (socket) {
socket.emit('a message', {
that: 'only'
, '/chat': 'will get'
}); });
var news = io
.of('/news')
.on('connection', function (socket) {
socket.emit('item', { news: 'item' });
});
<script>
var chat = io.connect('http://localhost/chat')
, news = io.connect('http://localhost/news');
chat.on('connect', function () {
chat.emit('hi!');
});
news.on('news', function () {
news.emit('woot');
});
</script>
Creating Simple Chat Application
16. Slide 16 www.edureka.co/mastering-node-jsSlide 16Slide 16Slide 16
RESTful API With Node.js
REST stands for Representational State Transfer. It is an architecture that allows client-server communication
through a uniform interface.
We will create a Restful Web Service with Node.js to perform CRUD operations ( create, read, update, delete )
By convention, HTTP verbs, such as GET, POST, PUT, and DELETE are mapped to retrieving, creating,
updating, and removing the resources specified by the URL
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Node.js has a built in command line debugger. The debugger is invoked by starting your application using the
debug keyword, like below :
• node debug server.js
var http = require('http');
http.createServer(function (req, res)
{
debugger;
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello Worldn');
}).listen(1337, '127.0.0.1');
console.log('Server running at http://127.0.0.1:1337/');
Debugging in Node.js
Breakpoints are used to stop the execution and examine the application.
One way to add a breakpoint is by adding a line to your application where you want to put the breakpoint. This
line should contain the statement debugger;
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TDD Flavor BDD Flavor
Unit Testing
Test-driven development (TDD) is a
software development process that
relies on the repetition of a very
short development cycle
BDD (Behaviour Driven Development) is
a synthesis and refinement of practices
stemming from TDD (Test Driven
Development) and ATDD (Acceptance
Test Driven Development)
Testing in Node.js
Unit testing is a type of automated testing where you write logic to test discrete parts of your application.
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Mocha is a feature-rich JavaScript test framework running on node.js and the browser,
making asynchronous testing simple and fun. Mocha tests run serially, allowing for flexible
and accurate reporting, while mapping uncaught exceptions to the correct test cases
Jasmine is a behavior-driven development framework for testing JavaScript code. It
does not depend on any other JavaScript frameworks. It does not require a DOM.
Chai is a BDD / TDD assertion library for node and the browser that can be delightfully
paired with any JavaScript testing framework
Testing in Node.js