What is jQuery
It was released in January 2006 at BarCamp NYC by John Resig.
Licensing: It is free, open source software Dual-licensed under the MIT License and the GNU General Public License. Microsoft has integrated jQuery officially into its IDE Visual Studio 2010 and jQuery intellisense is available in Visual Studio 2010 now.
This is the first chapter of jQuery ebook. This ebook comes with video tutorials, easy to navigate demo app with source code.
It helps to
. Improve the performance of the application
. Develop most browser compatible web page
. Implement UI related critical functionality without writing hundreds of lines of codes
. Extensible - jQuery can be extended to implement customized behavior
Other advantages of jQuery are
. Simple and Cleaner code, no need to write several lines of codes to achieve complex functionality.
Where to download jQuery from
How to use jQuery
To load local jQuery file
Ideally this markup is kept in under tag of your web page, however you are free to keep anywhere you want.
Do I need to refer jQuery file both in Master page/base page/template page and content page
No, master page/base page/ template page basically helps to create consistent layout for the page in the application. In case you have referred the jQuery file in master page/base page/ template page that cause rendering the file in the browser, you do not need to refer jQuery file the content page again.
In summary, there should not be more than one