New ‘Adaptive Image’ HTML Tag Stirs Controversy

The rising global popularity of smart phones and other small-screen Internet devices has created a number of dilemmas for web developers. Among the most pressing is the issue of serving the proper image files for widely divergent screen sizes. The industry has responded with a variety of solutions, including separate mobile websites that are much leaner in terms of shown images.

Carrying Out Tasks in the Background with HTML5 Web Workers

HTML5 offers a range of improved options for executing JavaScript functions. With Web Workers, you can execute scripts in the background, so that intensive processing need not interfere with the main functionality of your page. Of course this is most useful for complex tasks, but in this tutorial we will demonstrate the basics of using Web Workers with your pages using a simple example.

Implementing Drag and Drop Functions with HTML5 and JavaScript

With HTML5 and JavaScript, you can implement native drag and drop functions within the Web browser. This is one of the emerging HTML5 tools that promises to make websites more interactive without relying on additional technologies such as Flash. In this tutorial we will create a simple page with images the user can drag and drop into designated areas.

Using HTML5 to Determine User Location

Using some relatively simple JavaScript code, you can create Web applications that determine various aspects of the user location, including longitude, latitude and altitude plus more. Some Web applications can even provide navigation functionality by monitoring the user position over time, integrating with map systems such as Google Maps API.