Friday 30 January 2015

HTML5 Part8 Interview Questions and Answers for 2+ Years experienced

36. What is the purpose of HTML5 versus XHTML?
HTML5 is the next version of HTML 4.01, XHTML 1.0 and DOM Level 2 HTML. It aims to reduce the need for proprietary plug-in-based rich internet application (RIA) technologies such as Adobe Flash, Microsoft Silverlight, Apache Pivot, and Sun JavaFX. Instead of using those plugins, it enables browser to serve elements such as video and audio without any additional requirements on the client machine.

37. What is the difference between HTML and HTML5 ?
HTML5 is nothing more then upgraded version of HTML where in HTML5 supports the innovative features such as Video, Audio/mp3, date select function , placeholder , Canvas, 2D/3D Graphics, Local SQL Database added so that no need to do external plugin like Flash player or other library elemenents.

38. What is the major improvement with HTML5 in reference to Flash?
Flash is not supported by major mobile devices such as iPad, iPhone and universal android applications. Those mobile devices have lack of support for installing flash plugins. HTML5 is supported by all the devices, apps and browser including Apple and Android products. Compared to Flash, HTML5 is very secured and protected. That eliminates major concerns that we have seen with Flash.

39. What is the sessionStorage Object in html5 ? How you can create and access that?
The HTML5 sessionStorage object stores the data for one session. The data is deleted when the user closes the browser window. We can create and access a sessionStorage, created “name” as session
<pre><script type=“text/javascript”>
sessionStorage.name=“DGTECH”;
document.write(sessionStorage.name);
</script></pre>

40. What are the new image elements in HTML5?
Canvas and WebGL. <Canvas> is a new element that acts as a container for graphical elements like images and graphics. Coupled with JavaScript, it supports 2D graphics. WebGL stands for Web Graphics Language, a free cross-platform API that is used for generating 3D graphics in web browsers.
More Questions & Answers :-
Part1  Part2  Part3  Part4  Part5  Part6  Part7  Part8  Part9  Part10

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