Cover most of functionalities in real-world form requirement.
Form Spec
Separate UI event and data processing
UI Components should only care about emitting user event and the binding state
UI Components
No validation handler, No detailed input updating
Form Spec
Separate UI event and data processing
UI Components can annotate the form schema anyway we want
UI Components
No UI coupling with domain objects
Form Spec
Separate UI event and data processing
Dynamic rules should only depend on current form state.
Dynamic Validation Rules
No flag, No intermediate state in UI component
Form Spec
Separate UI event and data processing
Validator should be self-satisfaction having fully access to form state in current scope
Cross Field Validations
Do not process validation by depending on any UI component or extra params
Validation should be pure
Form Spec
Separate UI event and data processing
Async Validations
Form Spec
Separate UI event and data processing
Dynamic Inputs/Fields
We should have a single source of truth to decide what UIs show, do the form validations, and even do submit.
Form Spec
Separate UI event and data processing
The root component should be able to do "submit", "validate", "getError" ... through handy method without relying on any component life cycle or any detail of state.
