State Management

Sprig's core state primitive is signal(initialValue), which is useful for scalar values. For nested plain-object or array state, import createStore from the optional sprig-framework/store add-on. computed() derives values; effect() reacts to reads and returns a disposer.

There is no built-in global state manager. State can be local to a component/root, passed through props, or exported from an application module when intentionally shared. Reactive store and form helpers are optional add-ons at sprig-framework/store and sprig-framework/form.

Because the store is an optional package entry, apps that only need signals do not include its proxy implementation in the core bundle.