Html5

What is HTML5
1) HTML5 will be the new standard for
HTML.
2) HTML5 is a cooperation between the
World Wide Web Consortium (W3C) and the
Web Hypertext Application Technology
Working Group (WHATWG).

New Features in HTML5
1) Canvas
2) Geo Location
3) Video and Audio
4) Web storage
5) Application Cache
6) Server sent events
7) Web Workers
8) New Form Input types
9) New Form Elements
10) New Form Attributes

Canvas
• canvas is a rectangular area on an HTML
page, and it is specified with the <canvas>
element.
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
var img=document.getElementById("scream");
ctx.drawImage(img,10,10);

• To get canvas reference visit this link
http://www.w3schools.com/tags/ref_canvas.asp

Geo Location
• The HTML5 Geo location API is used to get the
geographical position of a user.

• We user the navigator object to get current
position of the application.

• To get more information visit
http://www.w3schools.com/html/html5_geolocatio
n.asp
navigator.geolocation.getCurrentPosition(showPosition);
navigator.geolocation.watchPosition(showPosition);

Video Element
1) HTML5 defines a new element which specifies a
standard way to embed a video/movie on a web
page: the <video> element.
Browser MP4 WebM Ogg
Internet YES NO NO
Explorer 9+

Chrome 6+ YES YES YES

Firefox 3.6+ NO YES YES

Safari 5+ YES NO NO
Opera 10.6+ NO YES YES

Sound Element
1) HTML5 defines a new element which specifies a
standard way to embed an audio file on a web
page: the <audio> element.
Internet Explorer YES NO NO
9+

Chrome 6+ YES YES YES

Firefox 3.6+ NO YES YES

Safari 5+ YES YES NO

Opera 10+ NO YES YES

Web Storage
With HTML5, web pages can store data locally
within the user's browser.
Earlier, this was done with cookies. However, Web
Storage is more secure and faster. The data is not
included with every server request, but used
ONLY when asked for. It is also possible to store
large amounts of data, without affecting the
website's performance.
The data is stored in key/value pairs, and a web
page can only access data stored by itself.

Application Cache
1. HTML5 introduces application cache, which means that a web
application is cached, and accessible without an internet
connection.
2. Application cache gives an application three advantages:
1. Offline browsing - users can use the application when
they're offline
2. Speed - cached resources load faster
3. Reduced server load - the browser will only download
updated/changed resources from the server

3. To enable application cache, include the manifest attribute in the
document's <html> tag.

Server Sent Events
1. A server-sent event is when a web page
automatically gets updates from a server.
2. This was also possible before, but the web page
would have to ask if any updates were available.
With server-sent events, the updates come
automatically.
3. Examples: Facebook/Twitter updates, stock price
updates, news feeds, sport results, etc.
4. The EventSource object is used to receive server-
sent event notifications
5. Each time an update is received, the onmessage
event occurs

Web Workers
1. When executing scripts in an HTML page, the
page becomes unresponsive until the script is
finished.
2. A web worker is a JavaScript that runs in the
background, independently of other
scripts, without affecting the performance of
the page. You can continue to do whatever you
want: clicking, selecting things, etc., while the
web worker runs in the background.

New Form Input types
Html 5 provide new input types like
1. color
2. date
3. datetime
4. datetime-local
5. email
6. month
7. number
8. range
9. search
10.tel
11. time
12.url
13. week

New Form Elements
HTML5 has the following new form
elements:
1. <datalist>
2. <keygen>
3. <output>

Form Attributes
Html5 added new attribute to new and existing html tags
like video , audio , form and input tags

Other Features of HTML5
1) Communication API
2) Web Socket API

HTML5 with MVC
There are MVC toolkits that supports HTML5
like :
ASP.net MVC HTML5 Toolkit
Kendu UI

Html5

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