Overview
Node.js allows the creation of Web servers and networking tools using JavaScript and a collection of "modules" that handle various core functionalities. Modules are provided for file system I/O, networking (DNS, HTTP, TCP, TLS/SSL, or UDP), binary data (buffers), cryptography functions, data streams, and other core functions. Node.js's modules use an API designed to reduce the complexity of writing server applications.
JavaScript is the only language that Node.js supports natively, but a large number of compile-to-JS languages are available. As a result, Node.js applications can be written in CoffeeScript, Dart, TypeScript, ClojureScript and others.
Though initially the module system was based on the CommonJS module pattern, the recent introduction of modules in the ECMAScript specification has shifted the direction of using ECMAScript Modules in Node.js by default instead.
Node.js is primarily used to build network programs such as Web servers. The most significant difference between Node.js and PHP is that most functions in PHP block until completion (commands only execute after previous commands finish), while Node.js functions are non-blocking (commands execute concurrently or even in parallel, and use callbacks to signal completion or failure).
Node.js is officially supported on Linux, macOS and Microsoft Windows 7 and Server 2008 (and later), with tier 2 support for SmartOS and IBM AIX and experimental support for FreeBSD. OpenBSD also works, and LTS versions available for IBM i (AS/400). The provided source code may also be built on similar operating systems to those officially supported or be modified by third parties to support others such as NonStop OS and Unix servers.
Platform architecture
Node.js brings event-driven programming to web servers, enabling development of fast web servers in JavaScript. Developers can create scalable servers without using threading, by using a simplified model of event-driven programming that uses callbacks to signal the completion of a task. Node.js connects the ease of a scripting language (JavaScript) with the power of Unix network programming.
Node.js was built on the Google V8 JavaScript engine since it was open-sourced under the BSD license. It is proficient with internet fundamentals such as HTTP, DNS, TCP JavaScript was also a well-known language, making Node.js accessible to the web development community.
Industry support
There are thousands of open-source libraries for Node.js, most of them hosted on the npm website. The Node.js developer community has two main mailing lists and the IRC channel #node.js on freenode. There are multiple developer conferences and events that support the Node.js community, including NodeConf, Node Interactive, and Node Summit as well as a number of regional events.
The open-source community has developed web frameworks to accelerate the development of applications. Such frameworks include Connect, Express.js, Socket.IO, Feathers.js, Koa.js, Hapi.js, Sails.js, Meteor, Derby, and many others. Various packages have also been created for interfacing with other languages or runtime environments such as Microsoft .NET.
Modern desktop IDEs provide editing and debugging features specifically for Node.js applications. Such IDEs include Atom, Brackets, JetBrains WebStorm, Microsoft Visual Studio (with Node.js Tools for Visual Studio, or TypeScript with Node definitions, NetBeans, Nodeclipse Enide Studio (Eclipse-based), and Visual Studio Code. Certain online web-based IDEs also support Node.js, such as Codeanywhere, Codenvy, Cloud9 IDE, Koding, and the visual flow editor in Node-RED.
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Filipe Contente
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"I believe in motivated teams used to work together. When everybody is in sync, better decisions are made, the focus on the final goals is never lost, and project development is much easier."
Eduardo Pinheiro
CTO & Full Stack Developer
"There are great ideas, cool technology, very nice design but those are only tools to build a product and the product is only a good product if it has results."
Pedro Vicentin
Full Stack Developer
"Coding is not just writing a few lines to meet requirements. You need to be cohesive so that other people understand your ideas, so it's almost like writing a book...except for the fact that you can't forget the semicolon at the end of the line."
Tiago Alves
System Architect & Full Stack Developer
"I believe that great software just gets out of the way."
Miguel Bettencourt Dias
SysAdmin & Security Expert
"Choose a Job You Love, and You Will Never Have To Work a Day in Your Life! - Confucius? Arthur Szathmary? An Old-Timer? Janet Lambert-Moore? Harvey Mackay? Anonymous?"
Manuel Antunes
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"Designing has a lot to do with common sense. To design highly functional and attractive interfaces and websites, you must understand your client’s business and the end user’s goals and motivations, and never lose focus on what is important."
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Testimonial on Eduardo Pinheiro
"Eduardo Pinheiro is a passionate and persistent engineer and entrepreneur. Eduardo’s penetrating mind allows him to portray incredible work and thrive on any new challenges."
Testimonial on Filipe Contente
"Working with Filipe is believing that the work will be done on schedule, on budget and with extreme quality! Nowadays the technologies are a moving target and we don't have time to be up to date to every state-of-the-art piece of framework or tech launched. However, for Filipe, there isn't a single challenge that can't be done. I trust him and his team."
Testimonial on Manuel Antunes
"What I love about Manuel it’s his no-nonsense approach. You won’t get the usual clichés and buzzwords from him. Instead, it’s all about a deep understanding of the job in hands, and the most effective ways to get it done."
Testimonial on Filipe Contente
"Working with Filipe you get so much more than a FullStack developer. At times I felt he knew more about the business than myself. He always questions decisions and forced good development briefings. In fact he was always more worried about understanding the big picture and customer side before diving into the development needs and that makes all the diference. With Filipe you get a business partner that is also a full stack developer. Thank you very much, it was a pleasure working with you."
Testimonial on Tiago Alves
"Tiago's technical expertise, ranging from high-level architectural knowledge down to the most detailed code algorithm, coupled with a great understanding of the business domain made him an invaluable team member and a great team player."
Testimonial on Manuel Antunes
"I love working with Manuel. He adds strategy to his design skills and a sense for what works. A design brief can easily evolve to a brainstorm, with great new ideas being generated every time. Design works when the message is clear and the target nods their head."
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