10 Reasons that Make Node.js a Top Choice for Web Application Development

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It often happens that a game-changing technology enters the tech market with a boom, but passes into extinction later. However, that’s certainly not the case with Node.js, which is an open source, cross-platform built on Chrome’s JavaScript runtime. Node.js was developed by Ryan Dahl in 2009, and the platform has now become an exceptional choice for real-time web application development that boosts ROI by providing a highly interactive user experience.

The best advantage of using Node.js is that developers can write JavaScript on both the client side and the server side. It’s worth mentioning that enterprises like PayPal, Yahoo, eBay, Netflix, The Mail Online, and Walmart have taken their respective businesses to fruition using Node.js. Read further to gain insight into 10 major reasons why most businesses are jumping on the Node.js-powered web app bandwagon.

Click here to learn about top JavaScript Frameworks/Libraries

10 Reasons behind Skyrocketing Popularity of Node.js for Web App Development

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#1 Expedites the Development Process

Node.js uses the V8 engine developed by Google which allows compilation of JavaScript into native machine code and fast execution. Since Node.js uses an event-driven, non-blocking I/O model, it’s very efficient and lightweight for in-memory usage and data dense real-time web applications that work on multiple devices.

With Node.js, you can execute common web application tasks very fast, like reading or writing to the database, reading and writing to network connections and reading or writing to the file system. Node.js is a blessing for developers who want to build quick, robust web applications that can effectively deal with parallel connections with increased throughput.

After LinkedIn opted for Node.js, it recorded a significant rise in its mobile traffic and also the reduction in the number of servers from 30 to 3. PayPal is another example that benefitted from Node.js. After using Node.js, PayPal saw a 35% downfall in their response time and doubled requests per second. You can run Node.js applications on multiple servers including Microsoft Windows, Mac OS X, and Unix.

#2 Excellent for Real-Time App Development

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You will agree that almost every company now looks for customer information in real time. For a simple reason, a reliable access to customer information as it’s being generated paves the way for significant boost in business sales by offering users what they are actually looking for, not something random that does not interest them. And over the past few years, having a real-time web app built using Node.js has emerged as the best way to notch that up.

With Node.js, all your worries related to low-level sockets and protocols go for a walk to the moon. Using Node.js, you can build a real-time web application as fast as making a simple blog in PHP. Node.js is a good fit for multi-user real-time web apps as in games and chat apps. The multi-user function is tackled by the event loop via websocket protocol which works on TCP. It also prevents the overhead of HTTP for web development.

#3 Data Streaming

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Although HTTP request and response are thought to be two isolated events, they are data streams in real. The beauty of Node.js is that it enables file processing while uploading. As a result, it saves a lot of time that goes waste in overall processing in the event of data coming in the form of streams. The same remains the case with real-time video or audio recording.

#4 Node.js is Omnipresent

JavaScript exists in both the browser and the server, thanks to Node.js for making it possible. If a company feel the need of changing the logic built for the browser to be shifted to the server, developers can do it with ease by using Node.js code migration. Though, there is not much difference in how the code written for either the browser or server runs.

#5 Allows to Use a Single Code Base for Web Applications

With Node.js, developers can automatically send and synchronize data between server and the client side as it allows developers to write JavaScript for both the server and client. Meteor, a web app framework created on top of Node.js, offers support to the same codebase for the client and the server. Any data change in the server is immediately visible on the client-side.

“Node.js is not a silver-bullet new platform that will dominate the web development world. Instead, it’s a platform that fills a particular need. Where Node really shines is in building fast, scalable network applications”, according to the web engineering company Toptal… Read full post here- 10 Reasons that Make Node.js a Top Choice for Web Application Development

8 Useful Tools/Frameworks for Java Testing

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A plethora of tools is available in the tech market for automated testing of Java/J2EE applications. However, for this blog, I have winnowed down the long list of Java testing tools to the most used and popular ones, based on the reviews of some Java developers I recently talked to. So, don’t feel offended if I miss out on your favorite Java testing tool, as there is no perfect tool in this world. The 8 Java testing tools/frameworks I am going to discuss in this blog are meant for unit testing or functional testing or for specific types of Java components such as view, logic and validation components.

8 Useful Tools/Frameworks for Java Testing

#1 JUnit

Without a doubt, JUnit is the most popular Java testing framework out there. The framework is open source and is widely used by Java developers for writing & executing unit test cases. JUnit has also been one of the major forces behind the adoption of test-driven development methodologies. JUnit comes as a packaged JAR (Java ARchive) library, and you can download junit.jar and hamcrest-core.jar files from GitHub before placing them in your test class path.

The Java testing framework is very simple to use, and provides annotations for test method identifications. Assertion is another exciting feature of JUnit which it uses to test the expected results. With JUnit, Java developers can quickly run unit tests and get instant results via red/green progress bar.

Although JUnit is a popular unit testing framework, it can also be used for integration and acceptance tests. So, you can easily integrate JUnit with standard IDEs, like eclipse and netbeans.

#2 JWalk

JWalk is a Java testing tool that relies on Lazy, Systematic Unit Testing. The tool performs bounded exhaustive testing of any compiled Java class, supplied by the programmer.

Although JUnit enables to frequently retest the modified code, the manually created test scripts often remain incomplete. But that’s not the case with JWalk, which operates directly on the compiled code for Java classes and uses a new lazy method for inducing the changing design of a class on the fly. Besides, fully automated checking gradually takes over manual inspection of the test report.

For systematic testing, JWalk performs exhaustive testing of the whole state-space of the object to ensure compliance with the specification. The tool is smart enough to infer the specification from hints supplied by the programmer during the testing process, and from smart assumptions made about the intended design of the code…..

Read More- 8 Useful Tools/Frameworks for Java Testing

10 Useful JavaScript Form Validation Libraries

For Internet users, form filling on many websites and mobile applications has become a common exercise to provide information, like email ID, name, product delivery address, etc, in order to use the services. After putting the required information, the form validates the information and allows you to use the services. However, form validation often frustrated many Internet users in the past as any wrong or incomplete information resulted in the page reload, forcing them to enter the whole correct information again.

But, problems don’t last forever in the technology world. That said, I am unveiling 10 useful JavaScript form validation libraries that show instant alert whenever an Internet user enters any wrong information, thereby saving the time of entering the whole information again. These JavaScript form validation libraries check the veracity of the information entered before sending it to the server. As a result, an invalid info dialog instantly appears in front of the info tab in which wrong information was entered, which saves the time and hassles of putting the whole correct information again.

10 Useful JavaScript Form Validation Libraries

#1. jQuery Validation Plugin

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jQuery Validation, an MIT licensed plugin and created by jQuery mega creator Jörn Zaefferer, is one of the most popular choices of JavaScript developers. The plugin is tested with jQuery 1.6.4, 1.7.2, 1.8.3, 1.9.0…Read full blog here- 10 Useful JavaScript Form Validation Libraries

Why #Developers Now Compare Vue.js to #JavaScript Giants #AngularJS and ReactJS?

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Vue.js, an MIT-licensed open source project, is a JavaScript library for building web interfaces. The library was first released in 2013, but not many developers took cognizance of it in web framework technology for the next two years. It was 2016 when Vue.js rose to fame and gained so much traction that it’s now seen as an alternative for even well established JavaScript libraries, such as Angular and React.

Since Angular belongs to search engine giant Google and React comes from social media behemoth Facebook, developers still trust and use those libraries more than Vue.js. However, Vue.js showed enough strength last year to make waves on the internet and emerge as a potential candidate to surpass the reach of Angular and React in many cases. This blog attempts to shed light on why there is a growing belief among developers that Vue.js is set to become the top JavaScript library, leaving behind Angular and React.

Check Out Vue.js Achievements in 2016

  • 1,531,217 NPM downloads

  • 26,000 Github Stars

  • 100,696,367 pageviews on Vuejs.org page

  • Vue.js version 2.0 launched in September 2016

  • Vue.js was 3rd most starred project in 2016 on GitHub

Why is Vue.js considered to be Better than Angular and React?

Vue.js is a lightweight and easy-to-learn library, with facilities like two way data binding and virtual DOM. Unlike Angular and React that often inundate developers with myriad things to develop an app, Vue.js is simple and only calls for things that you need to effectively develop an app. Besides, Vue.js is relatively new, therefore obviates the need of acquainting yourself with its history before starting using it…Read full blog here- Why Developers Now Compare Vue.js to JavaScript Giants Angular and React?

 

Python 3.6 adds New secrets Module for Robust Account and Password Security

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Python 3.6, the newest major release of the Python language, has added a new module, called secrets, to help generate cryptographically strong random numbers for managing secrets, like account authentication, tokens and related secrets. Python developers are highly likely to prefer secrets over the default pseudo-random number generator in the random module, since it’s not meant for cryptography or security, but modelling and simulation.

Let’s understand with an example how one can create their own cryptographically strong pseudo-random values and generate tokens using the secrets module.

How to create Cryptographically Strong Pseudo-Random Values using secrets

>>> import secrets
>>> import string
>>> characters = string.ascii_letters + string.digits
>>> secure_password = ”.join(secrets.choice(chNo Records.aracters) for i in range(10))
>>> secure_password
‘SRvM54ZAs1’

The first step is to import the secrets and the string modules. Then we create a string of uppercase letters and integers. Now, in order to choose characters randomly to generate a secure password, we need to use the secrets module’s choice() method. The reason it’s being called a secure password is because there’s been a use of mixed case, numbers and symbols in the password, which is highly advised to people to keep their passwords protected from hack attacks…Read full blog here- Python 3.6 adds New secrets Module for Robust Account and Password Security

Why to Use HTML5 and CSS3 for Your Business?

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HTML, an abbreviation of Hyper Text Markup Language, first came into existence in late 80s to help describe a document’s structure and to allow cross-linking of documents. HTML has evolved multiple times since then, and many developers worldwide use it to provide better, faster, more consistent user experiences for desktop and mobile visitors. HTML now enjoys the close association with two allies – CSS and JavaScript. CSS enhances the appearance of HTML by describing the way the document is supposed to look. JavaScript, on the other hand, makes HTML more interactive. However, in this blog we will focus on the benefits of using the latest versions of HTML standard and CSS for business purpose.

As more and more people now prefer smartphones or tablets over PCs to surf the internet, mobile friendly sites with good user experience have become the need of the hour. Paying heed to the current demands of rich media, cross device and mobile internet access requirements, the World Wide Web Consortium (W3C) in October 2014 published HTML 5, the fifth and the latest version of the HTML standard.

A Brief Introduction to HTML5

One of the biggest differences between HTML5 and previous versions of the HTML standard is that it provides one common interface to load elements in multiple browsers. Since the older versions of HTML require proprietary plugins and APIs, a web page that was built and tested in one browser may not load correctly in another browser. But same is not the case with HTML5, which completely obviates the need of installing a Flash plugin by allowing the element to run by itself.

HTML5 was designed keeping in mind cross-platform mobile application development. Besides, new syntactic features in HTML5, like video, audio and canvas tags, were specifically introduced to support multimedia on mobile devices. Offline storage is also one of the virtues of HTML5…read full blog here- Why to Use HTML5 and CSS3 for Your Business?

7 Tools to Remove Complexity of Java Development

According to PYPL Index (PopularitY of Programming Language) and TIOBE Index (The Importance of Being Earnest), Java is the most popular programming language world over. Since Java was introduced 20 years ago, several libraries, utilities, and programs are already available in the tech market that tout to be the best for Java development. However, before you choose a tool for your Java project, it’s paramount to know about its functionality, simplicity, flexibility, effectiveness and how suitable it is for your project. That said, I am discussing 7 popular Java tools you may find worth using to remove the complexity of your Java development project in 2017.

7 Tools for Java Developers to Add to Their Toolkit in 2017

#1 Eclipse

Eclipse, an open-source integrated development environment (IDE) and sponsored by IBM, continues to be one of the top choices among Java developers. Eclipse offers constant assistance while coding. So, instead of digging through documentation, you can complete your code through methods with ease and in quick time. Eclipse also offers tool-assisted refactoring and syntax checking, which ensures that developers write correct code while they type.

Eclipse also offers Java Development Tools (JDT) project that provides a set of plugins to empower the Eclipse platform with a full-featured Java IDE. Easy access to a wide range of plugins helps developers build all kinds of Java applications.

Besides Java, Eclipse offers support for languages, like C/C++ and PHP. Neon, the eleventh named release of Eclipse software and the latest version of Eclipse, includes content from eighty-five Eclipse projects. It brings support for high DPI monitors on Windows and Linux. Neon also provides improved editing tools, improved JavaScript and JSON tools, and support for PHP 7…Read full blog here- 7 Tools to Remove Complexity of Java Development