formspec-author

To create a Formspec JSON definition, you provide a minimal shell with an items array and a couple of binds to generate a ready-to-use form structure that drives rendering and validation across web, mobile, and server runtimes.

A FEL expression is used within Formspec binds to define and enforce specific form behaviors, allowing you to precisely calculate values, set relevance conditions, apply constraints, and make fields readonly or required.

You structure repeatable groups and option sets by establishing shapes within your Formspec definition, which enables cross-field validation and organizes complex form sections effectively across different runtimes.

Yes, Formspec definitions are designed to be reused and propagated across multiple runtimes including web, mobile, and server environments, ensuring consistent form behavior and rendering wherever the forms are deployed.

The best way to define cross-field validation is by establishing shapes in your Formspec definition, which allows you to enforce complex validation rules across multiple fields and repeatable sections accurately.

Yes, you need a minimal shell as input to start authoring, which typically includes a basic items array and a couple of binds to generate a complete and ready-to-use Formspec JSON definition.