react19

What problem does it solve?

React 19 patterns for building Envelope System UIs, providing structured approaches to handle actions, asynchronous data with use(), smooth transitions, and ref-as-prop ergonomics.

Core Features & Use Cases

• Actions for form handling to separate UI from business logic.
• use() hook to read promises and context directly in components.
• Transitions and ref-as-prop to enable responsive, accessible UIs with minimal boilerplate.
• Optimistic updates to improve perceived performance during interactions.
• Use Case: Build an Envelope System UI with forms, lists, and detail panels that update predictably.

Quick Start

Create a React 19 component that uses Actions for forms, the use() hook for data, and transitions for non-blocking updates.