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Introduction to HTML5 Web Apps

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HTML5 is the fifth standardized version of HTML since December 2012 on the recommendation of World Wide Web Consortium (W3C).

What is HTML5?

HTML5 is the current standard of internet markup language that structures and presents web-content according to the standards of W3C. Previously, HTML & HTML4.01 were the internet standards, devised on 1997. It is assumed that HTML5 contains almost major elements of HTML, CSS & JavaScript. The basic aim behind its development was to replace HTML4, XHTML1 and HTML DOM Level 2, along with the purpose to deliver rich web-content without external modules. The latest internet standard is also cross-platform supportive, irrespective of device like desktop, Tablets, Smartphone and Smart TVs. HTML5 is supportive in the development of animation, graphics, multimedia, browsers, parsers, along with this it can be also used to build complex web applications.

What Are HTML5 Apps?

HTML5 is the augmentation of previous version designed to improve capabilities of interactive and multimedia websites. HTML5 apps make use of multiple components of HTML5 drafts/files to create applications with similar functional experience just like offline apps. It indicates that HTML5 supports offline data storage that makes app usable even when it is not connected to the internet. Along with this, it also features Geo-Location that enables detection of user’s location, rich media Support, canvas drawing, CSS3 and easy audio, video implementation. The biggest example of web app is Gmail that has functional HTML5 version for iPhone as well as iPad users.

Key Features of HTML5 Apps:

HTML5 offers following key features:

  • Responsiveness

Due to different screen sizes, HTML5 incorporates responsive features in website design to manage different browsers, orientations & screen resolutions through adaptive, flexible and fluid website designs. We cannot emphasize the importance of responsiveness; a perfect example is its usage in eCommerce Magento Extensions, which add more functionality to Magento based web stores.

  • Better Semantics:

Through HTML5, it has now become easier to locate fragments of page like header, navigation, articles, sections, footers, aside etc. Thus, it gives more meaning and purpose orientation to the tags along with formatting that eventually elevates the semantic value of webpage through standardization of code.

  • Richer Media Support:

The element of Rich Media is one of the major enhancements of HTML5, which is enabled through tags to provide audio and video support. The rich media tags bestow easiness and flexibility to the design that is completely programmable through JavaScript.

  • User-End Database:

The disadvantage of cookies is due to its use in tracking unique user data, these cookies are added to the header of every HTTP request increasing the response time to a significant level, which is undesirable. As a remedy for this issue, HTML5 reduces size of cookies through session storage and local storage, which are not permanent repositories, as they can be used to store structured data on temporary basis.

Mobile App Development:

Currently mobile SDK developers prefer development for three kinds of apps:

  • Native Apps – These are widely used mobile platforms like iOS & Android. You need to have Xcode, Objective C and Java knowledge to develop programs for these platforms.
  • HTML5 Apps – These kinds of web-apps support HTML5, JavaScript and CSS. The approach used for the creation of such apps is write-once-run-anywhere approach that implements cross-platform mobile apps, which can run on different devices. These types of apps use HTML5 and JavaScript for the creation of sophisticated web applications along with some limitations in the code piece for session management, secure offline storage and access to native device functionality for camera, calendar, Geo-Location etc.
  • Hybrid Apps – Such type of apps embed HTML5 apps within the native container that allows the use of best as well as low profile components of native and HTML5 apps.

Some Web App Development Software:

Here are some of the widely used web app tools, which serve as independent frameworks:

Junior, Mobello, DHTMLX Touch, M project, Lungo.js, Lavaca, Jo, Joshfire Framework, Sproutcore and Sencha Touch

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