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Oracle Application Express 4.0 with Ext JS by Mark Lancaster

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Chapter 11. Performance Tuning Your JavaScript

Despite increasing speeds in broadband connections, it's still important as ever to keep web pages as lightweight as possible. High-speed Internet connections aren't available everywhere. For example, I work for a large infrastructure and mining organization, which has a number of sites in remote and inhospitable areas, with communications often dependent on low bandwidth, high-latency satellite links.

The trend towards applications aimed at mobile devices, such as Smartphone and other handheld devices with expensive data charges and relatively slow download rates also encourages us to keep web pages lightweight.

Throughout this book, we have been using the full Ext JS library in our APEX page templates, ...

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