Node.js

Introduction to Node.js

The modern web application has really come a long way over the years with the introduction of many popular frameworks such as bootstrap, Angular JS, etc. All of these frameworks are based on the popular JavaScript framework.

But when it came to developing server based applications there was just kind of a void, and this is where Node.js came into the picture.

Node.js is also based on the JavaScript framework, but it is used for developing server-based applications. While going through the entire tutorial, we will look into Node.js in detail and how we can use it to develop server based applications.

What is Node.js?

Node.js is an open-source, cross-platform runtime environment used for development of server-side web applications. Node.js applications are written in JavaScript and can be run on a wide variety of operating systems.

Node.js is based on an event-driven architecture and a non-blocking Input/Output API that is designed to optimize an application’s throughput and scalability for real-time web applications.

Over a long period of time, the framework available for web development were all based on a stateless model. A stateless model is where the data generated in one session (such as information about user settings and events that occurred) is not maintained for usage in the next session with that user.

Why use Node.js?

We will have a look into the real worth of Node.js in the coming chapters, but what is it that makes this framework so famous. Over the years, most of the applications were based on a stateless request-response framework. In these sort of applications, it is up to the developer to ensure the right code was put in place to ensure the state of web session was maintained while the user was working with the system.

But with Node.js web applications, you can now work in real-time and have a 2-way communication. The state is maintained, and the either the client or server can start the communication.

Who uses Node.js

Node.js is used by a variety of large companies. Below is a list of a few of them.

  • Paypal – A lot of sites within Paypal have also started the transition onto Node.js.
  • LinkedIn – LinkedIn is using Node.js to power their Mobile Servers, which powers the iPhone, Android, and Mobile Web products.
  • Mozilla has implemented Node.js to support browser APIs which has half a billion installs.
  • Ebay hosts their HTTP API service in Node.js

When to Use Node.js

Node.js is best for usage in streaming or event-based real-time applications like

  1. Chat applications
  2. Game servers – Fast and high-performance servers that need to processes thousands of requests at a time, then this is an ideal framework.
  3. Good for collaborative environment – This is good for environments which manage document. In document management environment you will have multiple people who post their documents and do constant changes by checking out and checking in documents. So Node.js is good for these environments because the event loop in Node.js can be triggered whenever documents are changed in a document managed environment.
  4. Advertisement servers – Again here you could have thousands of request to pull advertisements from the central server and Node.js can be an ideal framework to handle this.
  5. Streaming servers – Another ideal scenario to use Node is for multimedia streaming servers wherein clients have request’s to pull different multimedia contents from this server.

When to not use Node.js

Node.js can be used for a lot of applications with various purpose, the only scenario where it should not be used is if there are long processing times which is required by the application.

Node is structured to be single threaded. If any application is required to carry out some long running calculations in the background. So if the server is doing some calculation, it won’t be able to process any other requests. As discussed above, Node.js is best when processing needs less dedicated CPU time.

Node.Js Vs AngularJS: Know the Difference

What is Node JS?

Node.js is a cross-platform runtime library and environment for running JavaScript applications outside the browser. This is a free and open source tool used for creating server-side JS applications.

Node.js applications are written in JavaScript. This application can runs within the Node.js runtime on Linux and Microsoft Windows. This framework offers a rich library of various JavaScript modules to simplify web development process.

What is Angular JS?

AngularJS is a structural framework for developing dynamic web apps. It allows developers to use HTML as template language and lets HTML’s syntax to express application’s components briefly but clearly.

It is a full-featured JavaScript framework, with the primary goal of simplification. It provides support for developing dynamic, single page web apps and supports the (MVC) programming structure.

Node JS VS. Angular JS

Node.JS Angular JS
Node.js is a cross-platform run-time environment for applications written in JavaScript language. AnglarJS is an open source web application development framework developed by Google.
You need to install Node.js on the computer system. You just need to add AngularJS file just like any other JavaScript file to use it in applications.
It is written in C, C++ and JavaScript languages. Node.js supports non-blocking input/output API and an event-driven architecture. AngularJS is written entirely in JavaScript. It also allows extending the HTML’s syntax to describe the components of your application.
Node.js is useful to build fast and scalable server-side networking applications. This framework is best suited for building single-pageclient-side web applications.
Node.js has many different frameworks like Sails.js, Partial.js, and Express.js,. AngularJS is itself web application framework.
It is Ideal for developing small size projects. It is Ideal for creating highly active and interactiveweb apps.
Developers can use JavaScript on the client as well as the server. So they can focus on learning one language. Angular JS needs a deep understanding of prototyping, scope, and various other JavaScript aspects.
Node.js is quite useful for generating database queries because JavaScript is used to write database queries for databases like MongoDB, CouchDB. This reduces the developer’s task as they don’t need to remember the syntax differences while combining Node.js and NoSQL databases. Almost all otjer frameworks implement MVC by asking splitting an app into MVC components. It is difficult task, but Angular makes it simple as it implements MVC by splitt

What Is Better Node JS Or Angular JS?

Both Node.js and AngularJS platforms are targeted at building web applications using JavaScript. However, both of them are different in their architecture and working. Node.js mainly used to build server-side applications. AngularJS is suited for building single-page client-side web applications.

These two frameworks are high performing, advanced and widely used worldwide. So one should select according to his/her project need.

Conclusion:

  • Node.js is a cross-platform runtime library and environment for running JavaScript applications outside the browser.
  • Node.js offers a rich library of various JavaScript modules which can simplify coding.
  • AngularJS is a structural framework for developing dynamic web apps.
  • The goal of Angular JS framework is to provide simplified the development process.
  • Node JS is Ideal for developing small size projects while Angular JS is a great option for long size projects.
  • Both Node.js and AngularJS platforms are targeted at building web applications using JavaScript. However, both of them are different in their architecture and working.