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Archive for July 2016

Introducing ASP.NET Core:

ASP.NET Core is a new open-source and cross-platform framework for building modern cloud based internet connected applications, such as web apps, IoT apps and mobile backends. ASP.NET Core apps can run on .NET Core or on the full .NET Framework. It was architected to provide an optimized development framework for apps that are deployed to the cloud or run on-premises. It consists of modular components with minimal overhead, so you retain flexibility while constructing your solutions. You can develop and run your ASP.NET Core apps cross-platform on Windows, Mac and Linux. ASP.NET Core is open source at GitHub.

The framework is a complete rewrite that unites the previously separate ASP.NET MVC and Web API into a single programming model.

Despite being a new framework, built on a new web stack, it does have a high degree of concept compatibility with ASP.NET MVC.

ASP.NET Platform exists for more than 15 years. In addition, at the time of System.Web creation it contained a large amount of code to support backward compatibility with classic ASP. During this time, the platform has accumulated a sufficient amount of code that is simply no longer needed and is deprecated. Microsoft faced a difficult choice: to abandon backward compatibility, or to announce a new platform. They chose the second option. At the same time, they would have to abandon the existing runtime. Microsoft has always been a company focused on creation and launch on Windows. ASP.NET was no exception. Now the situation has changed: Azure and Linux occupied an important place in the company’s strategy.

The ASP.NET Core is poised to replace ASP.NET in its current form. So should you switch to ASP.NET Core now?

ASP.NET Core is not just a new version. It is a completely new platform, the change of epochs. Switching to ASP.NET Core can bring many benefits: compact code, better performance and scalability. But what price will be paid in return, how much code will have to be rewritten?

.NET Core contains many components, which we are used to deal with. Forget System.Web, Web Forms, Transaction Scope, WPF, Win Forms. They no longer exist. For simple ASP.NET MVC-applications changes will be minor and the migration will be simple. For more complex applications, which use a great number of .NET Framework classes and ASP.NET pipeline situation is more complicated. Something may work and something may not. Some part of the code will have to be rewritten from scratch. Additional problems may be caused by WebApi, because ASP.NET MVC subsystems and WebAPI are now combined. Many libraries and nuget-packages are not ready yet. So, some applications simply will not have a chance to migrate until new versions of the libraries appear.

I think we are waiting for the situation similar to the transition from Web Forms to ASP.NET MVC. ASP.NET Framework will be supported for a long time. First, only a small amount of applications will be developed on ASP.NET Core. Their number will increase, but sooner or later everyone will want to move to ASP.NET Core. We still have many applications running on the Web Forms. However, no one comes to mind to develop a new application on the Web Forms now, everybody chooses MVC. Soon the same happens to ASP.NET Framework, and ASP.NET Core. ASP.NET Core offers more opportunities to meet modern design standards.

The following characteristics best define .NET Core:

  • Flexible deployment: Can be included in your app or installed side-by-side user- or machine-wide.
  • Cross-platform: Runs on Windows, macOS and Linux; can be ported to other OSes (Operating Systems). The supported OSes, CPUs and application scenarios will grow over time, provided by Microsoft, other companies, and individuals.Command-line tools: All product scenarios can be exercised at the command-line.
  • Compatible: .NET Core is compatible with .NET Framework, Xamarin and Mono, via the .NET Standard Library.
  • Open source: The .NET Core platform is open source, using MIT and Apache 2 licenses. Documentation is licensed under CC-BY. .NET Core is a .NET Foundation project.
  • Supported by Microsoft: .NET Core is supported by Microsoft, per .NET Core Support.

The Bad:

  • As for the “cons” one of the biggest issues are gaps in the documentation. Fortunately most of the things for creating and API are covered, but when you’re building an MVC app, you might have problems.
  • Next problem – changes. Even if you find a solution to your problem, it could have been written for a previous version and might not work in the current one. Thanks to open source nature of it, there is also support available on github. But you get same problems there (apart from searching).
  • Another thing is lack of support in the tooling. You can forget about NCrunch or R# Test Runner. Both companies say they will get to it when it gets more stable.
  • ASP.NET Core is still too raw. Many basic things, such as the Data Access, is not designed for 100%. There is no guarantee that the code you are using now will work in the release version.

The Good:

  • It’s modular. You can add and remove features as you need them by managing NuGet packages.
  • It’s also much easier and straightforward to set up.
  • WebApi is now part of the MVC, so you can have class UserController, which will return a view, but also provide a JSON API.
  • It’s cross-platform.
  • It’s open-source.

ASP.NET Core is the work on the bugs of the classic ASP.NET MVC, the ability to start with a clean slate. In addition, Microsoft also aims to become as popular as Ruby and NodeJS among younger developers.
NodeJS and ASP.NET have always been rivals: both – a platform for backend. But in fact, between them, of course, there was no struggle. The new generation of developers, the so-called hipster developers, prefer Ruby and Node. The adult generation, people from the corporate environment, are on the side of .NET and Java. .NET Core is clearly trying to be more youthful, fashionable and popular. So, in future we can expect the .NET Core and NodeJS to be in opposition.

In its advertising campaign, Microsoft is betting on unusual positions for it: high performance, scalability, cross-platform. Do you think that ASP.NET “crawls” on the territory of NodeJS? Please feel free to share your thoughts with us.

Thank you in advance!

Ref: MICHAL DYMEL – DEVBLOG

 

Darya Bertosh

Darya Bertosh

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altabel

Altabel Group

Professional Software Development

E-mail: contact@altabel.com
www.altabel.com

JavaScript is the most accessible cross-platform language nowadays. It’s used both on front-end and back-end website development.

Using it Altabel developers create web-apps which includes offline mode, desktop apps, apps for smartphones and tablets, add-ins for Microsoft Office, SharePoint and Dynamics. And if you don’t get acquainted with JavaScript yet we strongly believe that you should do it immediately!

I reckon many of us know there are plenty of different languages compiled in JavaScript. It’s CoffeeScript, Dart, GorillaScript and others. To be fair some of these languages are fly-by-night creations that have never really taken off in the wild. But many of these languages are major engineering efforts with large ecosystems and large corporate backers. With so many frameworks and languages out there it can be difficult to figure out which one is the best.

In 2012 Microsoft analyzed the situation and created a new language with a possibility of dealing with problems and using existing JavaScript insights. Thus, a free open source programming language TypeScript was developed and maintained by Anders Hejlsberg (co-creator of Turbo Pascal, Delphi and C#). From the very beginning the new language started expanding rather quickly due to its flexibility and productivity. Considerable amount of projects written in JavaScript began to transfer to TypeScript. Popularity and relevancy of the new language leaded to the fact that lots of TypeScript ideas became the part of new JavaScripts standard afterwards. And moving forward the AngularJS 2.0 version (today one of the most popular web frameworks) was completely written on TypeScript with the help of Microsoft and Google.

But why TypeScript?

Let’s review main reasons of its popularity:

  • TypeScript is a typed superset of JavaScript. In other words any valid JavaScript code is also valid for TypeScript.
  • TypeScript may be used to develop JavaScript applications for client-side or server-side execution.

Microsoft’s TypeScript seems to generate the most attractive code and is considered to be one of the best JavaScript front-ends. TypeScript adds sweetness, but at a price.

  • TypeScript can also be used with existing JavaScript frameworks/libraries such as Angular, jQuery, and others and can even catch type issues and provide enhanced code help as you build your apps.
  • TypeScript can be just the right fit for projects in which developers try to remain relevant without the need to learn a whole new syntax.

The ubiquity of JavaScript as a runtime has inspired people from a variety of programming backgrounds to recreate JavaScript as they see fit. And yes, TypeScript lets you write JavaScript the way you really want to.

  • TypeScript differs from JavaScript with possibility of evident static objectives, with usage maintenance of full-blown classes (just as in traditional object-oriented languages), and also with maintenance of logging on modules. It’s aimed at development speed raising, simplifying of legibility, refactoring and reusability of your code.
  • TypeScript has many additional language features but defining types and creating classes, modules, and interfaces are some of the key features it offers.
  • In TypeScript the same types are supported as well you would expect it in JavaScript. Types enable TypeScript developers to use highly-productive development tools and practices: static checking, symbol-based navigation, statement completion and code refactoring.
  • TypeScript implements many conceptions that are appropriate to object-oriented languages such as extending, polymorphism, encapsulation, accessibility modifiers and so on.
  • Lots of TypeScript features have strict rules, so various code formatting errors are excluded. Which means that the possibility of incorrect implementation or inaccurate method invocations is eliminated.
  • TypeScript potentially allows writing large complex programs more quickly. Thereafter it’s easier to maintain, develop, adjust to scale and test them in comparison with standard JavaScript.

Drawbacks

TypeScript has a number of other positive features that are out of the scope of this article. On the other hand, there are two significant minuses exist.

  • Probably, the biggest minus is entry threshold and number of specialists on the market. Nowadays there are not so many specialists with solid experience in this language.
  • In comparison with JavaScript, it’s needed more time for the development. It stems from the fact that apart from class implementation one should describe all enabled interfaces and method signatures.

TypeScript 2.0

There are some significant changes coming in TypeScript 2.0 that continue to deliver on the promise of making JavaScript scale. This includes a whole rewrite of the way types are analysed in the flow of the code and an opt-in feature that starts to deal with logic errors around the flexibility of things being undefined or null in JavaScript. Other features planned for TypeScript 2.0 include read-only properties and async/await downlevel support.

TypeScript creator Anders Hejlsberg already has plans for TypeScript 2.1 and beyond. Features envisioned for these releases include a new JavaScript language service in Microsoft’s Visual Studio software development platform and more refactoring support.

The most recent version, TypeScript 1.8, rolled out in February, includes several more features like F-Bounded polymorphism, string literal types, etc.

Conclusion

So, if you haven’t taken a look at TypeScript, I have hopefully convinced you that it is something to at least worth a bit of your time. It has some of the best minds focused on making JavaScript scale and the team is going about it in a way that is open and transparent. By embracing the reality of JavaScript and building on top of it, in my opinion TypeScript is transforming the common language of the web, for the better.

We will be happy to hear how you use TypeScript in your current projects, if you like it, if you are planning to switch to this language, what are the pros and cons in your opinion, etc. Feel free to share with your thoughts in comments below!

 

Victoria Sazonchik

Victoria Sazonchik

Business Development Manager

E-mail: victoria.sazonchik@altabel.com
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altabel

Altabel Group

Professional Software Development

E-mail: contact@altabel.com
www.altabel.com

 

“Computer programming is an art, because it applies accumulated knowledge to the world, because it requires skill and ingenuity, and especially because it produces objects of beauty.”
Donald Knuth, 1974

 

It’s better to start your journey into the career of programming by answering the question “Do you really need programming?” This question does not apply to those, who majored in computer programming or was close to it. If at school you were good at math, if you like to spend a lot of time sitting in front of the computer, if you want to learn something new, then programming is for you. What is more, this area is now in demand and highly paid in the world, job vacancies for the post of programmers are always open. Isn’t it the best time to be a programmer? 🙂

Everyone knows that the future programmer should be able to think broadly and to present the project from different perspectives before its implementation and realization. Unfortunately, the machine does not understand a human language. Of course, I’m not talking about Siri and other voice recognition — I’m talking about the creation of new software. To create the calculator, the computer needs to be given the task in the same way as the foreman explains to workers how to lay bricks. That’s why you can’t do anything without understanding the programming languages. Well, first you need to decide what kind of programming languages we should start with.

And here everyone chooses a language which will be useful for him. It depends on the kind of products you are going to develop. Most of us studied Turbo Pascal at school, and it’s no news that this language is practically not used anymore. So, if you want to join the team of programmers in the nearest future, the choice of language should be made sensibly.

Among the most popular programming languages in 2016 are Java, followed by C languages, then Python, JavaScript, PHP, Ruby, etc. It should come as no surprise that the more popular language is, the more chances you have to find work in the future. So, you’d better start with Java or C#, as these are the best paid and relatively simple learning languages of writing code. If you can’t cope with them, then you should try to learn Python. This language suits for quick and effective programming.

But if you have no programming experience at all you can start with something more simple for understanding. Good examples can be the basics of HTML and CSS.

Why? These two languages are essential for creating static web pages. HTML (Hypertext Markup Language) structures all the text, links, and other content you see on a website. CSS is the language that makes a web page look the way it does—color, layout, and other visuals we call style. Well, if you are interested in making websites, you should definitely start with HTML and CSS.

Let’s move to JavaScript. It is the first full programming language for many people. Why? It is the next logical step after learning HTML and CSS. JavaScript provides the behavior portion of a website. For example, when you see that a form field indicates an error, that’s probably JavaScript at work.

JavaScript has become increasingly popular, and it now lives outside web browsers as well. Learning JavaScript will put you in a good place as it becomes a more general-purpose language.

Some people also suggest choosing Python as the first programming language because Python’s program code is readable, first of all. You don’t even need to be a programmer to understand what is happening in the program. Due to the simple syntax of Python you will need less time for writing programs than in Java, for example. A huge base of libraries will save you a lot of strength, nerves and time. Large technology companies are working with Python: Yandex, Google, Facebook and YouTube. It is used for web applications, game development, software for servers.

Java can also be a good choice for a beginner. This language is more popular than Python, but a bit more complicated. At the same time, the development tools are much better designed. Java is one of the most popular languages for the backend development of modern enterprise web applications. It is used in Amazon, eBay, LinkedIn and Yahoo! With Java and the frameworks based on it, developers can create scaling web apps for a wide range of users. Java is also the primary language used for developing Android applications for smart phones and tablets. Moreover, after Java you will be able to work with low level programming languages.

PHP is one more popular language. The PHP language, along with databases (e.g. MySQL) is an important tool for creating modern web applications. Most of the sites developed on PHP are focused on a large amount of data. It is also a fundamental technology of powerful content management systems like WordPress. There are no normal imports in PHP, there are many solutions to one and the same problem. And it makes training more complicated.

 

 
The languages C and C# are a bit complicated for a beginner. But if you develop software for embedded systems, work with system kernels or just want to squeeze out every last drop from all available resources, C is what you need.

Ruby has begun to gain popularity since 2003, when the framework Rails appeared. Used widely among web startups and big companies alike, Ruby and Rails jobs are pretty easy to come by. Ruby and Rails make it easy to transform an idea into a working application, and they have been used to bring us Twitter, GitHub, and Treehouse.

Choosing a programming language may still seem challenging. It shouldn’t. You can’t go wrong. As long as you choose a language that is regularly used in technology today, you’re winning. When you are starting out, the goal is to become solid in the basics, and the basics are pretty similar across almost all modern programming languages.

Part of learning to code is learning a language’s syntax (its grammatical or structural rules). A much bigger part of learning to code, the part that takes longer and gives you more headaches, is learning to solve problems like a programmer. You can learn the grammatical structure of the English language pretty quickly; however, you won’t truly understand the language until you put that grammatical structure to use in a conversation. The same is true in programming. You want to learn the core concepts in order to solve problems. Doing this in one language is similar to doing it in another. Because the core concepts are similar from language to language, I recommend sticking with whichever language you choose until your understanding of the core concepts is solid. If you have a clear idea of your reasons for learning to program, and know exactly what you want to accomplish with your new coding skills, then you’ll be able to make the right choice.

How did you guys get into programming? What are the best programming languages for first-time learners?

Please, share with us your experience and opinion here below 🙂

 

Kate Kviatkovskaya

Kate Kviatkovskaya

Business Development Manager

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altabel

Altabel Group

Professional Software Development

E-mail: contact@altabel.com
www.altabel.com

Let`s start from a bit of history. React.js is a JavaScript library for building UIs. It was created by Facebook development team to deal with large applications with data that changes over time: react.js hits the “refresh” button any time data changes, and knows to only update the changed parts. Firstly, react was used in-house at Facebook and then it was released as an open-source project and it has quickly gained popularity among developers.

Facebook is not the only one to use React:

Instagram is 100% built on React, both public site and internal tools ;

Yahoo`s mail client is made in React;

Netflix – the biggest paid video-streaming service;

Sberbank, bank #1 in Russia, is built with React;

Khan Academy uses React for most new JS development.

React in comparison to Angular.js isn`t a complete framework. However we can`t say that React.js is only “V” in the MVC. After a closer look, you can actually see that React.js is more than just “V”, it has quite some features of the C (controller) part as well. This is why React is so confusing to understand.

Let`s see why React.js stands out from the crowd:

Convenient architecture

Flux – is highly competitive to MVC. One-way data flow provides maintainability and efficient arrangement of data and DOM elements.

Virtual DOM

React developers suggested using “virtual DOM” in order to solve performance issue for websites with too dynamic DOM. All changes in a document are made there first, and then React looks for the shortest path to apply them in a real DOM tree. This approach makes the framework fast.

Components

React is fundamentally different than other front-end frameworks in that each asset is made up of many isolated components. Want a button changed across the whole platform? Change it once and voilà it`s changed everywhere.

By making the creation, distribution and consumption of isolated reusable components more straightforward, developers are better able to save time by using and creating common abstractions. This is true of both low level elements like buttons and high level elements such as accordions.

JSX

React.js uses a special syntax called JSX, which allows to mix HTML with Javascript. Markup and code are composed in the same file. This means code completion gives you a hand as you type references to your component’s functions and variables.

SEO  friendly

React is significantly more SEO friendly than most JavaScript MVC frameworks. As it is based on a virtual DOM you can use it on the server without needing a headless browser on the server such as Phantom.js to render pages to search engine bots.

React.js is a new interesting emerging Javascript library. It does have some drawbacks however it`s an excellent alternative for building large apps where data changes quickly. We are curious to hear about your experience in using React.jsJ Have you tried it?

 

Anna Kozik

Anna Kozik

Business Development Manager

E-mail: Anna.Kozik@altabel.com
Skype: kozik_anna
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altabel

Altabel Group

Professional Software Development

E-mail: contact@altabel.com
www.altabel.com


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