Conditional Logic Form
Dynamically reveal fields, toggle validation schemas, and branch onboarding paths based on real-time user selections.
Preview
Conditional Logic Form
Fields dynamically reveal, adapt validation requirements, and adjust layout based on user selections in real time.
Overview
Conditional forms adapt their visual complexity to match the user's intent. By withholding non-applicable inputs until relevant options are toggled, they reduce cognitive load and form abandonment.
Core Concepts
- Reactive State Drivers: State drivers (such as radio buttons, segment controls, or boolean toggles) dictate which fieldsets mount in the DOM.
- Schema Conditioning: In Zod, combine base schemas with
.discriminatedUnion()or dynamic.refine()rules to enforce requirements only when branch drivers are enabled. - Smooth Entrance Transitions: Subtle micro-animations (
animate-in fade-in slide-in-from-top-2) prevent jarring layout shifts when conditional sections appear. - State Cleanup: When switching branches, ensure unselected branch values are either purged or preserved according to UX needs.
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