Dart Programming Language

Dart Programming Language

Dart is a general-purpose programming language originally developed by Google and later approved as a standard by Ecma (ECMA-408). It is used to build web, server and mobile applications, and for Internet of Things (IoT) devices. It is open-source software under a BSD license.

Dart is a class-based, single inheritance, object-oriented language with C-style syntax which compiles into JavaScript or native code. It supports interfaces, mixins, abstract classes, reified generics, and optional typing.

History:

Dart was unveiled at the GOTO conference in Aarhus, Denmark, October 10–12, 2011.The project was founded by Lars Bak and Kasper Lund.

Standardization

Ecma International has formed technical committee TC52 to work on standardizing Dart, and inasmuch as Dart can be compiled to standard JavaScript, it works effectively in any modern browser. Ecma International approved the Dart language specification first edition in July 2014, at its 107th General Assembly, and a second edition in December 2014.

Usage:

There are three main ways to run Dart code:

Compiled as JavaScript

To run in mainstream web browsers, Dart relies on a source-to-source compiler to JavaScript. According to the project site, Dart was "designed to be easy to write development tools for, well-suited to modern app development, and capable of high-performance implementations. When running Dart code in a web browser the code is precompiled into JavaScript using the dart2js compiler. Compiled as JavaScript, Dart code is compatible with all major browsers with no need for browsers to adopt Dart. Through optimizing the compiled JavaScript output to avoid expensive checks and operations, code written in Dart can, in some cases, run faster than equivalent code hand-written using JavaScript idioms.

In the Dartium Browser

The Dart software development kit (SDK) ships with a version of the Chromium web browser modified to include a Dart virtual machine (VM). This browser can run Dart code directly without compiling to JavaScript. It is intended as a development tool for applications written in this language, rather than as a general purpose web browser. There were originally plans to include Dart support directly in Chrome, but these were cancelled.

Stand-alone

The Dart SDK also ships with a stand-alone Dart VM, allowing dart code to run in a command-line interface environment. As the language tools included in the Dart SDK are written mostly in Dart, the stand-alone Dart VM is a critical part of the SDK. These tools include the dart2js compiler, and a package manager suite called pub. Dart ships with a complete standard library allowing users to write fully working system apps, such as custom web servers.

Runtime Modes

Dart programs run in one of two modes. In checked mode, which is not the default mode and must be turned on, dynamic type assertions are enabled. These type assertions can turn on if static types are provided in the code, and can catch some errors when types do not match. For example, if a method is annotated to return a String, but instead returns an integer, the dynamic type assertion will catch this and throw an exception. Running in checked mode is recommended for development and testing.

Dart programs run by default in production mode, which runs with all dynamic type assertions turned off. This is the default mode because it is the fastest way to run a Dart program.

Snapshots

Snapshots are a core part of the Dart VM. Snapshots are files which store objects and other runtime data.

Script snapshots

Dart programs can be compiled into snapshot files. These files contain all of the program code and dependencies preparsed and ready to execute. This allows fast startups.

Full snapshots

The Dart core libraries can be compiled into a snapshot file which allows fast loading of the libraries. Most standard distributions of the main Dart VM have a prebuilt snapshot for the core libraries which is loaded at runtime.

Object snapshots

Dart is a very asynchronous language. With this, it uses isolates for concurrency. Since these are workers which pass messages, it needs a way to serialize a message. This is done using a snapshot, which is generated from a given object, and then this is transferred to another isolate for deserializing.

DartPad

The Dart team created DartPad at the start of 2015, to provide an easier way to start using Dart. It is a fully online editor from which users can experiment with Dart application programming interfaces (APIs), and run Dart code. It provides syntax highlighting, code analysis, code completion, documentation, and HTML and CSS editing.

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What is website template, and what are the uses and advantages of website templates ?

What is website template, and what are the uses and advantages of website templates ?

 What are Website Templates?

A website template (or web template) is a pre-designed webpage, or set of HTML webpages that anyone can use to "plug-in" their own text content and images into to create a website. Usually built with HTML and CSS code, website templates allow anyone to setup a website without having to hire a professional web developer or designer, although, many developers do use website templates to create sites for their clients. This allows anyone to build a reasonably priced personal or business website that can then be listed in search engines so users can search for your specific product or service. In the case of freethemes.co website templates, each design we offer is a self contained (or stand alone) downloadable complete website that you can use to "plug-in" your text and image content with little, or no, editing of the layout or design elements.

Types of Web Templates

Webpage templates may be self contained zip file downloads, or part of a proprietary web builder interface, or included with an html software editing program. They may be responsive, adaptive or static in design or configured specifically for mobile. The file extension can be .html .htm .php or .asp. In all cases they will be built using html and css code. If it's labeled as "responsive", the layout will flex in width to fit the specific device viewing screen regardless of whether it's a desktop computer, tablet or smartphone.

Website templates allow novice web developers to quickly build a website without the need to create webpages from scratch.

Website Templates and Developers
Because our website templates are complete stand alone zip file downloads that include multiple pages and built-in scripts, we do have many developers that use our designs to create sites for their clients. Additionally, any website template we offer can be purchased by a client and they can then outsource or hire a developer to complete their website using our design and layout. Using a website template as a base and having a professional complete the site will allow for a great savings over having a developer create a new web site from scratch. There are no restrictions on how a website is setup using one of our webpage template designs once purchased.

Website Templates and a Unique Website

If a user is concerned that by using a website template, they will not be getting a unique website, you may want to consider that many billions of websites exist, and countless templates are available from a vast number of companies. The odds are nearly astronomical that a surfer would ever see two sites that are using the same website template design. Additionally, when setting up your website you will most likely edit all text and replace most images to make your website project unique. All our templates also use global CSS code and allow for easy color changes as well as font and some layout & design modifications. Unlike a CMS or site builder system, stand alone templates allow for modifications to any part of the webpages.

Websites cannot be unique, because today the usage of website templates are get increased. So there is a chance to use same website template by two different business website user. So ultimately the content of the webpage only only differs from those sites. If a web developer slightly changes the HTML and CSS then there may be a change in website also.

What Can a Web Template Include?

Text and .jpg, .png or .gif images, jQuery and CSS3 animation, shopping carts, contact forms, dynamic image galleries and slideshows, a PDF download links page, and video players (including embedded Youtube movies) are just a few of the features that can be built into a design.

Web template designs and code vary widely from vendor to vendor, so when selecting a website template, you will want to make sure it already includes the functions, scripts and applications you require for your web development project. Text, stock photos, scripts and 3rd party plugins can be added to the ready-made pages. The included stock images can be replaced with the users own .jpg images or edited as the project requires.

Is web design template a good choice?

Web templates are an excellent choice for anyone on a small or medium sized budget who doesn't need to have a 100% unique design. What does that mean, a "100% unique design"? It means that when you buy a template, it's possible that others have purchased the same design, and might continue to do so in the future. So you might not be the only one with that design. But practically speaking, the web has tens of millions of sites on it. When you purchase a web design template you normally alter it to some degree to fit your own content. Not every person who purchased the same web design template you did, will actually end up launching a website with it (sometimes plans fall through). So the chances that you will feel like you don't have a unique design or that you will see other sites with your same design are slim.

Why use a template?

Templates allow web developers with minimal design experience or those in a rush to create beautiful professional-grade web sites in a fraction of the time.

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Responsive Website Designing is the Excellence Response

Responsive Website Designing is the Excellence Response

As we know that most people are users of Smart phone, tablet and laptop. So that website should be in Responsive. One of the most Important things that one website and many devices for users. (Trihari Smart Solutions)We provide new services for develop software in Billing Software, Online Test, Security Management Software, OMR Solution, E-Learning Software, , Staffing Software, ERP Software. The best option of your Business branding by the SEO (search engine Optimization). In long and short, Website design comprise three steps, the first is planning, planning means how to make websites and second is creation and last and final is updating of websites. Furthermore, it also contains information architecture, user interface, website structure, website layout, fonts, images, colors and icon designing.

Here are some development techniques:-

§  1.Clear Navigation

Clear Navigation is requisite for your websites, because if your website does not look clear and easy to understand then nobody can approach you easily. So, make sure that your websites' pages are easy to understand or not because without clear navigation website is useless.

§  2.Hard Security

Having websites, "Hard security" is must, if you sell anything online, firstly you need to secure your website with an SSL certificate, so that no one can misuse. The SSL will encrypt entire communication between your clients and you like social security number, credit card number.

§  3.Promote your website on Social Media

There are lots of social platforms to promote your websites for developing your business such as Twitter, Facebook, You Tube, Pinterest, Google+, LinkedIn, Instagram and many more. Though, social media plays vital role of marketing your business. Moreover, social media will help to boost your SEO for improving your business. So, don't forget, use this as much as you can for rapid growth of your company. SEO is stand for Search engine optimization, is the technique of affecting the visibility of a web page or website and helps the website to rank top in search engines, so that it can be found, indexed and read by search engines in the most effective, manner. Moreover, it is a very feasible marketing outlet to develop your business as a SEO company as well as may target diverse kinds of search on search engine including video search, image search, newspaper search, academic search. In long and short, SEO services provide business visibility, traffic and branding visibility in order to make your business optimize and makes your content and websites captivate.

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An Introduction To Digital Marketing

An Introduction To Digital Marketing

Digital marketing means the promotion of products and brands using all method of electronic devices like personal computers, tablets, smart phones and mobile phones etc. This really is a successful approach to reach a big mass of audience and to achieve their valuable trust. Digital Marketing includes various ways where the merchant can choose one or more ways to talk with people. It gives a chance to run and analyze marketing campaigns in real-time and understand what's fetching potential outcome.

                                                                                            

Digital marketing is even cost-effective and increases ROI as it helps you to interact directly with the audience, giving them comprehensive information regarding a product or brand, anytime and anywhere. It's the quick and feasible way to build manufacturer and reputation in the market. Effective results can be achieved using following the different parts of Digital Marketing.

Search Engine Optimization - SEO (Search Engine Optimization) is the process of improving visibility of a web site without any cost in a search engine with the addition of search engine friendly elements in it. The search engine result pages (SERPs) for a search term are called organic results. Search engines like Google, Bing, Yahoo and MSN prefers relevant, optimized websites to display for almost any search term.

 Social Media Marketing - It's the process of engaging people through social media networks like Facebook, Twitter, G+, LinkedIn and Instagram etc. This gives you a chance to reach significantly more than one-fourth of internet users and updating them about your latest offers and new products launched.

 Search Engine Marketing - It encompasses both paid and unpaid methods to boost the visibility of the website. The paid method identifies pay-per-click where search engine costs for each click leading the user to your website and unpaid methods identifies organic results attained by search engine optimization. A survey posted at Search Engine Watch reveals that SEM the most effective acquisition channel for 85% of retailers.

Email marketing - Sending a commercial message or newsletter straight to the customer's inbox through an email is named email marketing. Emails are sent to the prospective customers, previous customers and the present customers, encourage customer loyalty and repeat business. A worldwide data posted by The Madison Logic Company in April 2014 states that 122 billion emails are sent every hour.

Affiliate Marketing - Affiliate Marketing is a kind of marketing in which a company rewards one or more affiliates for every single conversion. Quite simply it is the practice of using one's talent and efforts to promote others business and getting rewards in turn. The reward model is known as CPA (cost per action).

 Web Analytics - Web Analytics can be used to monitor the traffic on the site and user activity thoroughly. It can help you to analyze the influence of your marketing campaigns or latest activities. You can even evaluate the interest of users as well as how many unique visitors and returning visitors. You actually perceive in regards to the ROI of other marketing campaigns. It even demonstrates in regards to the demographics showing which geographical area accommodates your target audience. Hence, it is the crucial part of digital marketing.

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Introduction to Yii2 Framework

Introduction to Yii2 Framework

What is Yii?

Yii is a high performance, component-based PHP framework for rapidly developing modern Web applications.

What is Yii2?

Yii currently has two major versions available: 1.1 and 2.0. Version 1.1 is the old generation and is now in maintenance mode. Version 2.0 is a complete rewrite of Yii, adopting the latest technologies and protocols, including Composer, PSR, namespaces, traits, and so forth.

 Yii2 was under development for more than a year. As it is mentioned in official documentation, Yii2 is a complete rewrite of Yii1.1.

What are the major changes in Yii2?

PHP Version

One of the basic and most important changes in Yii2 is Yii 2.0 requires PHP 5.4.0 or above. Yii2 is built using most of latest features provided in PHP release version 5.4.0.  Make sure your server is running PHP version 5.4.0 or above before choosing Yii2.

Introduction of Namespaces

From PHP version 5.3.0, Namespaces were introduced in PHP programming. Due to the large number of libraries for PHP, the chances of name collision in different libraries became a real problem. Namespaces will help us to remove such problems. Namespaces are just like a folder which groups the files for a library.

Yii2 and Namespaces

Yii2 is built completely using namespaces. So we have to be familiar with using namespace in PHP programming in order work with Yii2. Here is good tutorial for how to use namespaces in PHP. Once you are ready to work with namespaces you are almost good to start development in Yii2 framework.

Integration with Bootstrap

Like the close integration with jQuery in Yii 1.1, Yii 2 is having a close integration with Bootstrap HTML Framework. Infact all the widgets are modified so that we can customize the html properties of those widgets in order to match the bootstrap structure. This will be very useful for modern web application development because most of the designs are now based on bootstrap html framework.

Yii2 Basic and Yii2 Advance

Yii2 framework is available in two templates, first one is basic and the other is advanced. Usually most of the projects will require only the basic template unless you really want to use advanced template. Advanced template provide multiple tires of application with individual application files sharing some common configuration. Basically the advanced template will help to create multiple application with sharing some common config such as db configuration. This helps us to create and application for frontend and a separate application for the backend. This is not required for most of the projects.

Structure of Yii 2 Framwork Files

1 2 3 4 5 6 7 8 9 10 11

assets/             contains assets definition   commands/           contains console commands (controllers)   config/             contains application configurations   controllers/        contains Web controller classes   mail/               contains view files for e-mails   models/             contains model classes   runtime/            contains files generated during runtime   tests/              contains various tests for the basic application   vendor/             contains dependent 3rd-party packages   views/              contains view files for the Web application   web/                contains the entry script and Web resources

Unlike with Yii 1, standard installations of Yii 2 results in both the framework and an application skeleton being downloaded and installed. The core framework files are stored in the vendors folder.

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Latest emerging platforms to build highly interactive eCommerce solutions

Latest emerging platforms to build highly interactive eCommerce solutions

Ruby on Rails Technology

Ruby on Rails development services are getting popularity for web application development that is written using Ruby programming language. Ruby on Rails often referred to as RoR or Rails is an open source web development framework and is an object oriented programming language that helps to build simple, complete and dynamic web applications with high interactivity and functionality.

Some of the features of Ruby on Rails framework for making it a high level ecommerce framework amongst other open source e-commerce softwares are:

• §  Applications can be created faster using simple methods and using less code.
• §  Being an open source, Ruby framework is ideal for developing database-backed web applications.
• §  It is easy to deploy web solutions by using Rails because it works well with wide array of web servers and databases that implement CGI or Fast SGI.

An open source platform, AngularJS, assists in removing the hurdles that may arise in the creation of single page applications. The best thing about AngularJS services is that there is no requirement to write much of the coding, thus making the job easier and much faster, and also facilitates in saving the time and efforts. With its unique features and capability to develop applications in an easier manner, its popularity has increased in the field of web application development.

Why ANGULAR for application development?

Google trends have revealed the fact that the popularity of AngularJS has been enhancing and overtaking the expectations of users. Here are some of the reasons why opting for this superior framework will prove to beneficial.

§  Data binding is hassle free in the domain of AngularJS

Simplicity is what everyone aims for and with AngularJS development, this is also accessed. Using AngularJS services, the need to develop from an existing object or to portray your features, can be eliminated.

§  Unit testing competency is remarkable

This is yet another advantage to take into consideration, and that is, the Angular divides a specific application into logical modules that have dependency on each other. And its unit testing competence, it is in fact remarkable. It permits to offer a calculated approach to the tests by taking in to account only the modules in which one is interested.

§  It facilitates parallel development

Another added benefit to visualize is that AngularJS services facilitates parallel development when compared to the conventional JavaScript application, where working in a large team would be highly difficult. But by using AngularJS development, it is totally feasible to divide the actions into their services so that it enables developers to easily test and code without stepping into each other's areas.

Conclusion

Ruby on Rails and Angular JS support rapid application development due to which they are gaining popularity day by day. These web development platforms help the app developers to be successful in creating strong and dynamic applications in a more efficient and hassle free manner.

For more information, please visit: www.triharisolutions.com