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The intent here is to support shifting of client-side behavior from the 5.3 style, an approach that involved monkey-patching functions onto T5.initializers, and move the same logic into modules, preferably with simpler parameters. It is also expected that there will be greater use of data- prefixed HTML5 attributes in place of separate configuration, as outlined above.

Avoiding JavaScript Classes

Much of the logic for important operations, such as client-side validation (and input field decoration), are based on the use of client-side JavaScript classes. This has been somewhat valuable in terms of making the behavior controllable via monkey patching. On the other hand, it cam be clumsy to accomplish in practice, as the desired behavior is only described in terms of the implementation.

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Compatibility mode will be initially enabled, via a symbol value.

In compatibility mode, additional client-side JavaScript will be loaded to provide the same T5 and Tapestry namespaces available in Tapestry 5.3.

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