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5 reasons why nodeJs is so popular

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Node.js outshines other web applications by replacing websockets with revolutionary push technology. You would ask, what is so unique about it? Well, we finally have cutting-edge web applications with two-way, real-time connections where both the server and client can build communication, allowing them to exchange valuable data. Now this is in stark contrast to our conventional web response paradigm where only the client initiates communication

Node.js server technology is used to create and run a wide variety of web applications, and is quite similar to what Ruby On Rails, Spring Framework and ASP.NET does. It leverages JavaScript as the main language, which is a lightweight built-in web server and has a plethora of Plugins managed via the Node Package Manager (NPM), allowing you to custom-build your applications to meet your needs. It may sound like any other good web technology, but it has certain features that make it a popular choice among developers to build a wide spectrum of web applications.

Here are the top 5 reasons why nodeJs is so popular nowadays:

1. Node.js is superfast

Node.js is primarily a JavaScript runtime that is powered by V8, developed by Google for use in Chrome. V8 has the ability to compile and execute JavaScript at lightning fast speed, mainly because it compiles JavaScript into a native machine code. In addition to this, Node.js has a magical event loop, which is a single thread performing all I/O operations in an asynchronous manner. In Node.js, when an application has to perform I/O operation, it sends asynchronous tasks and callback action to the event loop, and then continues to perform the rest of the program. On completion of sync operation, the event loop automatically returns to the task to execute callback. This is much unlike traditional looping, which consumes a lot of memory and is exceptionally difficult to execute. Thus, reading/writing to file system, network connections, and to the database is executed very fast in Node. It allows developers to build fast and highly scalable network applications that are capable of handling bulk amounts of simultaneous connections having high throughput.

2. High Performance

PayPal uses Node.js, and has reported doubling the number of requests per-second and reducing the response time by 35%. On the other hand, Wal Mart, the retail giant had a superb experience with Node.js in 2013, when they put all their mobile-based traffic via Node.js on Black Friday, the busiest shopping time of the year. Amazingly, on Black Friday, Wal Mart servers did not go over a mere 1% CPU utilization and yet they deploy with 200,000,000 users online. LinkedIn, the global networking site, moved from Ruby to Node to handle their mobile traffic, and reduced the number of servers to 30 to 3, i.e. almost 90% reduction. The new system was up to 20 times faster. All these figures clearly indicate performance capability of Node.js.

3. JavaScript Everywhere

One of the biggest reasons why Node.js is so popular is because it uses JavaScript as its main language to build web applications. And to be honest, JavaScript is now the only choice to develop web applications in the browser. What more! A new and robust framework is introduced quite frequently to woo developers. With Node.js, JavaScript has literally revolutionized on the server. The language is common to most web developers, and is certainly driving the world today. And according to experts, the trend will not fade away soon.

Since JavaScript is a language that most developers know or have used at some point of time, the transition from another web technology to Node.js is a breeze. This makes it a preferred choice among web developers.

4. It is Lightweight

Typically, Node.js uses a basic event-driven architecture. This means everything executed on it, including every single operation and call, is a series of asynchronous callback. This enables Node to run on a single thread as unlike other web technologies where a new thread is spawned for every client request. This not only makes it light-in-weight, but also forms the foundation of Node’s non-blocking I/O feature.

5. It is Easy to Modify and Maintain

Traditionally built applications become less adaptive and rigid over time as new requirements are fed. Eventually, they start creaking under the stress they were not built for. However, developing new services using Node.js is comparatively easier. With Node, a bunch of small applications is built instead of a single, large application. This allows making changes or adding a new functionality with much ease, without having to make changes deep inside the code-base.

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This post is inspired from another blog written on this topic.

 


 

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Top 7 Websites and Apps built with AngularJs

AngularJS is a popular framework for building web applications. When I created my first AngularJS app, I got advice from a colleague at work who had experience on how to set everything up. That helped me tremendously because I didn’t have to guess at best practices.  AngularJS provides a great platform to build your website.Today we will look upon top 7 websites built with AngularJS to let you know more about this technology.

1. freelancer.com

 

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Freelancer is the world’s most renowned marketplace for outsourcing. The employer just needs to post the project to get their work done. There are around 15.7 million freelancers registered on this site who compete against each other by bidding on the project.

2. paypal.com

 

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Paypal is one of the worldwide leading Internet payment companies. It’s another example of large websites using AngularJS.

3. angularjs.org

 

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Angularjs.org is a website for learning AngularJS. This site contains videos, free course, tutorials, case studies, documentations and API references to learn AngularJS. This site gives a perfect platform for learning AngularJS to novice.

4. istockphoto.com

 

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Istockphoto has a huge collection of images, videos and photo clips. These images can be purchased at a nominal price of US $0.95 to $1.50 with price range varying on the credits allotted to an image.

5. upwork.com

 

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UpWork is another great website which provides a platform where employer can find freelancers for any job at any time. It allows client to work, hire and interview with freelancers thereby, reducing the efforts to find a suitable employee for the role.

6. localytics.com

 

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Localytics is a marketing platform for mobile and web app owners to build a strong customer relationship through their analytics. This service offering platform is used by 6,000 companies, like Microsoft, eBay, ESPN, and others. Localytics developers were previously using Backbone before they decided to move to AngularJS framework. And now their integrated approach to app helps users to deliver a more personalized experience. They believed AngularJS helped to solve common UI related problems and reduce the amount of code comparing to the previous framework.

7. netflix.com

 

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Netflix is headquartered at California (United States) and provides on request internet streaming media to viewers. It brings the latest movies and TV series at your doorstep by sending you DVDs via Permit Reply Mail.

 


 

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Top 5 nodeJs framework for Developers

Node.js is one of the more groundbreaking additions to the web development landscape, offering an environment that enables full-stack JavaScript applications for the first time ever. Prior to Node.js, JavaScript was limited to client-side scripting, but Node transformed the script into a cross-over language, capable of writing software that’s portable between the front and back ends.

JavaScript brought its speed and cross-platform compatibility to back-end development, along with its devoted community of JavaScript programmers. In its 2015 developer survey, Stack Overflow found that JavaScript was the most popular programming language—even among back-end developers. This soaring popularity, along with Node’s expansion into an entire development ecosystem, has fueled the creation of numerous Node.js frameworks that both extend and add to Node.js’s existing features.

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Let us look at the Node.js framework list representing most powerful and feature rich frameworks available today that help you build real time and scalable web applications with ease.

Express.js

Express.js a lightweight, efficient middleware and routing framework. Express.js is best known as another quarter of the MEAN (MongoDB, Express, AngularJS and Node) stack, and is the most popular Node.js framework. Because Node.js itself wasn’t intended to build websites, the Express framework is able to create an HTTP server in Node, layering in the middleware structure and response/request functions needed to actually run a site. It’s a pretty minimalist framework that’s great for giving developers extra, built-in web application features and the Express API without overriding the already robust, feature-packed Node.js platform. Note that it does require a bit more manual tasks, which can be tedious and time consuming, and has a bit larger footprint than other frameworks.

Socket.io

Socket.io is all about real-time communication and chat apps—the kind of software that hinges on robust event-driven, bidirectional communication between browsers and servers. It’s a websocket-compatible server that’s great at providing collaborative features and real-time analytics, whether they’re in the form of a counter or more in-depth metrics. Socket.io is compatible with every device, operating system, and browser. It’s been used by top tech companies like Trello, Zendesk, Microsoft, and Yammer, as well as Flightcar, a startup that lets people rent out their cars from the airport while they’re traveling.

Hapi.js

Need more enterprise-level functionality? Working with distributed engineering teams? Hapi.js may be the best route for you. Hapi.js was created by developers at Walmart in preparation for Black Friday traffic as an answer to limitations they’d run into with Express—mainly extensibility and maintainability issues. They found that, as the application grew, Express code was more difficult to split into chunks and delegate to different teams. Hapi’s plug-in system enables it to be worked on in sections without breaking the rest of the code base.

Right out of the box, Hapi does a lot more than Express. While there are similarities and differences between the two frameworks, Hapi—which is primarily used for rapidly building and testing application programming interfaces (APIs)—generally enables developers to focus more on writing reusable application logic instead of spending time building infrastructure. It supports API development with an array of plug-ins from authorization and authentication to metrics and logging. It’s been used by heavy-hitters like OpenTable, Macy’s, Condé Nast, and Disney.

Mean.io

Mean.js and Mean.io are frameworks written by the same author with subtle differences. Mean.io was developed first, so it has a bit more documentation and a larger community behind it. It’s based on Node modules, with client- and server-side files in separate modules. Mean.js uses an MVC-style Express/Node back end and an AngularJS-based front end. It also leverages the Grunt tool to enable automated testing.

Mojito

Mojito is an MVC framework based on Yahoo! Cocktails, a JavaScript-based mobile development platform built by developers in house at Yahoo!. Mojito acts like a module that layers very well with other core Node modules, while implementing Cocktails’ on-line/off-line, multi-device, hosted application platform.

 

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Why MEAN is better than LAMP ?

 

Developing a Web-driven application (either mobile or browser-based) typically requires the provisioning of some server-side infrastructure as well as the development of some code to run on it. Such code will often consume APIs. But occasionally, it provide them as well. For many years, the go-to infrastructure in such situations was affectionately referred to as the LAMP stack and it primarily involved Linux, Apache, MySQL and PHP, Perl or Python. But, thanks in part to Javascript’s applicability to both client and server-side scripting, there’s an another stack that’s now widely considered as an alternative to LAMP; the MEAN stack.

 

What’s LAMP?

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Linux, Apache, MySQL and PHP. The holy grail of web development for at least as long as I can remember. This stack represents the foundation of the web.

While its age may be showing, its maturity is strong. The LAMP stack can be altered to replace MySQL with MongoDB, and PHP with Python. The acronym defines a low level configuration for web applications.

What’s MEAN?

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MongoDB, ExpressJS, AngularJS and Node.js makes up the MEAN stack. A powerful JavaScript driven stack with diverse capabilities.

Comparatively to LAMP, the database layer is replaced completely with JSON storage using MongoDB. JSON is the native data language of JavaScript. While relatively young, the framework has a growing number of supporters.

This stack is basically a JavaScript lover’s dream.

Now we will look at points , why MEAN is better.

 

Node.js is superfast

 

Apache was great, but these days, Node.js is often flat-out faster. A number of benchmarks show that Node.js offers better performance, while doing much more. Perhaps it’s the age of the code. Perhaps the Node.js event-driven architecture is quicker. It doesn’t matter. These days, especially among impatient mobile device users, shaving even milliseconds off your app’s performance is important and Node.js can do that, while offering a Turing-complete mechanism for reprogramming it.

 

MongoDB is built for the cloud

 

If your Web app plans include making good on the pennies-per-CPU promise of the cloud, the MEAN stack offers a compelling database layer in MongoDB. This modern database comes equipped with automatic sharding and full cluster support, right out of the box. Plug in MongoDB and it spreads across your cluster of servers to offer failover support and automatic replication. Given the ease with which apps can be developed, tested, and hosted in the cloud, there’s little reason not to consider MongoDB for your next project.

 

MySQL’s structure is confining (and overrated)

 

Anyone who has developed or maintained a LAMP-based app for any amount of time knows that MySQL’s strength as a relational database can feel a bit imprisoning at times. Like all relational databases, MySQL forces you to push your data into tables. This isn’t a problem if every single entry fits into exactly the same format, but how often is the world that generous? What if two people share the same address but not the same account? What if you want to have three lines to the address instead of two? Who hasn’t tried to fix a relational database by shoehorning too much data into a single column? Or else you end up adding yet another column, and the table grows unbounded.

MongoDB, on the other hand, offers a document structure that is far more flexible. Want to add a new bit of personal information to your user profiles? Simply add the field to your form, roll it up with the rest of the data in a JSON document, and shove it into your MongoDB collection. This is great for projects in flux and for dealing with data that may ultimately prove tricky to constrain in table form.

 

Angular is a Plus

 

It’s not exactly fair to compare the “A” in “MEAN” with anything in the LAMP stack because LAMP doesn’t include an analog. If you want to do anything on the client side, you’re on your own. Sure, there are plenty of good PHP-based frameworks that work with MySQL, but each is a bit different and moving in its Angular_full_color_logo.svgown direction. AngularJS has been developed as well as maintained by dedicated Google engineers. This means that there is a huge community out there for you to learn from. Apart from that, there are engineers that can help you tackle any challenges you face on the way. It also means that clients get what they want. Most frameworks require programmers to splitting the app into multiple MVC components. After that, the programmer has to write a code to put them together again. AngularJS, however, strings it together automatically. That saves you time, and reduces the app’s time-to-market.

 

AngularJS is more intuitive as it makes use of HTML as a declarative language. Moreover, it is less brittle for reorganizing. AngularJS is a comprehensive solution for rapid front-end development. It does not need any other plugins or frameworks. Moreover, there are a range of other features that include Restful actions, data building, dependency injection, enterprise-level testing, etc. AngularJS is unit testing ready, and that is one of its most compelling advantages.

 

Node.js simplifies the server layer

 

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Navigating the various layers of the LAMP stack can be a difficult dance of many hats, one that has you shuffling through various config files with differing syntax. MEAN simplifies this through use of Node.js.

Want to change how your app routes requests? Sprinkle in some JavaScript and let Node.js do the rest. Want to change the logic used to answer queries? Use JavaScript there as well. If you want to rewrite URLs or construct an odd mapping, it’s also in JavaScript. The MEAN stack’s reliance on Node.js put this kind of pipework all in one place, all in one language, all in one pile of logic. You don’t need to reread the man pages for PHP, Apache, and whatever else you add to the stack. While the LAMP generation has different config files for everything, Node.js avoids that issue altogether. Having everything in one layer means less confusion and less chance of strange bugs created by weird interactions between multiple layers.

 

JSON everywhere

 

AngularJS and MongoDB both speak JSON, as do Node.js and Express.js. The data flows neatly among all the layers without rewriting or reformatting. MySQL’s native format for answering queries is, well, all its own. Yes, PHP already has the code to import MySQL data and make it easy to process in PHP, but that doesn’t help the client layer. This may be a bit minor to seasoned LAMP veterans because there are so many well-tested libraries that convert the data easily, but it all seems a bit inefficient and confusing. MEAN uses the same JSON format for data everywhere, which makes it simpler and saves time reformatting as it passes through each layer. Plus, JSON’s ubiquity through the MEAN stack makes working with external APIs that much easier: GET, manipulate, present, POST, and store all with one format.

 

Its your choice

 

Of course, if you’re really picky, there’s no reason why you can’t mix it up a bit. Plenty of developers use MongoDB with Apache and PHP, and others prefer to use MySQL with Node.js. AngularJS works quite well with any server, even one running PHP to deliver data from MySQL. You don’t have to be a slave to the acronyms.

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This post is inspired from another blog written on this topic