This course is designed for students who have a solid foundation in Intermediate-level JavaScript, including creating custom JavaScript objects and DOM scripting (either through completion of the eclasses Intermediate JavaScript course or with instructor approval). Students don't need to have previous experience with XML, JSON, or server-side scripting.
This course is a practical introduction to Ajax (Asynchronous JavaScript and XML), which focuses on using client-side JavaScript to create Ajax requests, extract XML and JSON (JavaScript Object Notation) data from these requests, and extend the user's Ajax experience with visual feedback. Topics include:
- How Ajax works
- Understanding HTTP
- Using XML and JSON in Ajax applications
- Object-oriented JavaScript and custom Ajax objects
- Troubleshooting and Debugging Ajax
- Creating Reusable Ajax-enabled Components
- Providing Visual Feedback to the User
- Ajax Best Practices
Outline
Week 1: Introduction to Ajax
- Creating a request object
- Requesting the data
- Asynchronous data transfer
- Using the readyState property
- Understanding HTTP
- Sending the request
- Using a callback function
- Displaying the server response
Week 2: Using XML and JSON in Ajax applications
- XML basics
- XML and the DOM
- Extracting data using responseXML
- JSON basics
- Using JavaScript literal notation
- JSON vs XML
- Extracting data using responseText
Week 3: Object-oriented JavaScript and custom Ajax objects
- Object constructors
- Prototypes
- The new operator
- Using custom Ajax objects
Week 4: Troubleshooting and Debugging Ajax
- The onerror event
- Tools for navigating the DOM
- Debugging Ajax with Firebug
- Handling HTTP status codes
Week 5: Creating reusable Ajax-enabled components
- Expanding a display with an accordion component
- Creating a tree view
- Displaying data with a data grid
Week 6: Providing feedback to the user
- Using animated gifs with forms
- The yellow fade technique
- Drag and drop functionality
- Using the Scriptaculous library for visual effects
- Ajax best practices
Prerequisites
- Full understanding of HTML 4, including HTML forms
- Completion of Intermediate JavaScript course or instructor approval
Requirements
- A DOM-compliant browser, either: IE6+, Safari2+, Firefox, or Opera
- Web space to post assignments, preferably without banner ads
Books: |
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| Required Book |
Ajax for Web Application Developers |
Additional information: |
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Your place in the course is confirmed by your payment. Introductory courses are intended for students with no experience in the subject matter and are seeking beginner level training.
Refund Policy: Please read our Terms and Refund Policy before registering for this course.
Additional Cost: Book and software might be required for the course. Read the Requirements and Book section for more information. Course fee does not include the book and software cost .
How eClasses Work:Instructors post lectures (text-based, no video or audio), reading selections, and hands-on assignments once a week in the online classroom. Students can discuss the assignments with the instructor and amongst themselves in the classroom area. This format has no set meeting time, which allows students to attend class at a time most convenient to them, yet still provides logically organized communication between class participants. Students can apply for the completion certificate after finishing the class. |
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| Price: |
$220.00
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| Course No.: |
P133 |
| Instructor: |
Lucinda J. Dykes |
| Co-instructor/TA: |
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| CEUs: |
3 |
| Duration: |
6 weeks |
Open Courses:
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Start Date: Jun 21, 2010 |
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Reg. Date:
Jun 24, 2010 |
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Start Date: Aug 30, 2010 |
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Reg. Date:
Sep 02, 2010 |
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Start Date: Nov 08, 2010 |
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Reg. Date:
Nov 11, 2010 |
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Instructor's Profile:  Lucinda Dykes is a web developer, online course developer, and technical writer. She started her career in a high-tech area of medicine, but left medicine to pursue her interests in technology and the Web. She has been writing code and developing Web sites since 1994. Lucinda has authored numerous computer books; the most recent is the most recent is Beginning Ajax for WROX. |
Before you register for this class, please read the Outline, Prerequisites, Requirements, Books, and Refund Policy sections carefully. |
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