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Ajax Design Patterns by Michael Mahemoff

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Part III. Programming Patterns

Knowing the foundational technologies is one thing; applying them is another. Ajax is not rocket science, but there are still plenty of technical issues that will arise in building a serious Ajax App. The programming patterns focus on technical qualities of software—in particular:

Maintainability

Ensuring web services and browser code are easy to understand and work with

Robustness

Ensuring the application will prevent errors where possible and handle them gracefully when they do arise

Performance

Ensuring the application runs as quickly as possible and feels smooth and responsive from the user’s perspective

The first chapter in this section, Web Services (Chapter 9), provides several alternative strategies for designing web services. Also related to Web Remoting, Browser-Server Dialogue (Chapter 10) looks at the flow of information between browser and server; e.g., synchronization techniques.

DOM Population (Chapter 11) covers several strategies for handling DOM population following a server response. Code Generation and Reuse (Chapter 12) contains a couple of general programming patterns for maintainability and portability. Finally, the Performance Optimization (Chapter 13) patterns are about improving not only speed of updates and communication, but also about optimizing the user experience in the face of inevitable delays.

Chapter 9: Web Services

Chapter 10: Browser-Server Dialogue

Chapter 11: DOM Population

Chapter 12: Code Generation and Reuse

Chapter 13: Performance Optimization

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