14.10. Summary
Mozilla's template system extends RDF with a query system and with formatted output of the query results. Those results and output can change dynamically to match dynamic changes to the information underlying the query. Templates work on top of the XUL language and are integrated with the content layout system. They can be used to create dynamic GUI interfaces or just to display changing data in a fixed-sized widget. Templates are not static—they can easily be refreshed or updated if conditions change.
The template system is a technical challenge to learn. It has unfamiliar concepts, it has its share of quirks and stumbling blocks, and it provides very little feedback to the programmer. Awkwardly, the data sources that feed data ...
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