Introduction to jquery

1. Cleveland C#/VB.Net User Group
February 24, 2009
Marv Schwartz
mss@case.edu

2.  … you write cascading style sheets (css)
 … you write ASP.net software?
 … you write javascript?
 … you write jQuery?
 … you enjoy writing javascript?

3.  Why YOU might use jQuery
 How to update VS-2008 for jQuery
 Write some jQuery code
 Ideas for debugging jQuery code
 References
Sam Nasr has kindly agreed to post these slides
on http://www.clevelanddotnet.info/.

5.  Javascript has become essential to current
web page development, but …
 Javascript is not a good language design
 Javascript has become bloated
 DOM navigation
 Browser differences
 Writing Javascript code is tedious, time-
consuming, and error-prone

6.  jQuery makes writing Javascript much easier
 DOM navigation (css-like syntax)
 Apply methods to sets of DOM elements
 Builder model (chain method calls)
 Extensible and there are tons of libraries
 Handles most browser differences so you don’t
have to
 Server provides data
 jQuery on client provides presentation

7. Scott Guthrie is a Corporate Vice President in
the Microsoft Developer Division. He runs the
development teams that build the following
products/technologies:
CLR and the core .NET Base Class Libraries
ASP.NET
Silverlight
WPF
IIS 7.0
Visual Studio Tools for ASP.NET, WPF, Silverlight and
Mobile
jQuery and Microsoft (Google ScottGu jQuery)

8. Scott Guthrie announced “… that Microsoft will
be shipping jQuery with Visual Studio going
forward. We will distribute the jQuery
JavaScript library as-is, and will not be forking or
changing the source from the main jQuery
branch. The files will continue to use and ship
under the existing jQuery MIT license.
We will also distribute intellisense-annotated
versions that provide great Visual Studio
intellisense and help-integration at design-time”

9.  ScottGu, jQuery Intellisense in VS 2008
j
http://weblogs.asp.net/scottgu/archive/2008/11/21/jquery-intellisense-in-vs-2008.aspx
 VS2008 sp1
 KB958502-JScript Editor support for
“-vsdoc.js” IntelliSense documentation files
http://code.msdn.microsoft.com/KB958502/Release/ProjectReleases.aspx?ReleaseId=1736

10. February 7th, 2009
FLOSS Weekly 55: jQuery
Hosts: Randal Schwartz and Leo Laporte
jQuery, a lightweight JavaScript library emphasizing JavaScript and HTML
interaction.
Guest: John Resig for jQuery
TWiT Wiki for this show
John Resig is the creator, project lead and the head of the development team
of the jQuery JavaScript library, released in January, 2006. For Resig's day
job he works as a JavaScript Evangelist for the Mozilla Corporation, where
he does JavaScript testing, performance analysis, speaking, and writing.
He's also the author of a number of other projects, including:
Sizzle: A cross-browser, standalone, JavaScript library for implementing CSS
selector DOM selection in JavaScript, which is in the process of being
integrated into jQuery, Prototype, Sizzle, YUI, and MochiKIt.
Processing.js: A port of the Processing visualization language to JavaScript
(running in an HTML 5 canvas element).
Resig also speaks on the Open Web Podcast with Dion Almaer and Alex Russel,
where they discuss web standards, JavaScript, and browsers. He's the
author of the book "Pro JavaScript Techniques" and is working on his
second book: "Secrets of the JavaScript Ninja" (due out in 2009)

11.  HTML only
 Text
 Tables
 ASP.net AJAX

12.  ASP.net
 No ScriptHandler
 Uses WebMethods
 Uses query string

13.  Compress jQuery-1.3.2.js
 or use Google to host jQuery
http://code.google.com/apis/ajax/documentation/
 Not needed: jQuery-1.3.2.vsdoc.js

14.  Plugins: http://docs.jquery.com/Plugins
 and Google returns many more
 flot
 SimpleModal

15.  jQuery in Action
 http://www.manning.com/bibeault/
 chapter2lab selectors.html
 chapter2lab.wrapped.set.html

16.  http://jquery.com/
 Scott Guthrie’s blog:
http://weblogs.asp.net/scottgu/
 Rick Strahl’s blog:
http://www.west-wind.com/weblog/
 Book: jQuery in Action

17. A problem with Google is that it finds outdated
information as easily as current information.
Integration with Visual Studio 2008 is improving
quickly. Be wary of old hints. Some are
unnecessary. Some break things.
Go code some cool web pages using jQuery.
Thank you.
Marv Schwartz
mss@case.edu