Function UseEffect

tsunami/app/hooks.go:119–126

UseEffect is the tsunami analog to React's useEffect hook. It queues effects to run after the render cycle completes. The function can return a cleanup function that runs before the next effect or when the component unmounts. Dependencies use shallow comparison, just like React. This hook must be ca

(fn func() func(), deps []any)

// or when the component unmounts. Dependencies use shallow comparison, just like React.
// This hook must be called within a component context.
func UseEffect(fn func() func(), deps []any) {
	// note UseEffect never actually runs anything, it just queues the effect to run later
	rc := engine.GetGlobalRenderContext()
	if rc == nil {
		panic("UseEffect must be called within a component (no context)")
	}
	engine.UseEffect(rc, fn, deps)
}

// UseLocal creates a component-local atom that is automatically cleaned up when the component unmounts.
// The atom is created with a unique name based on the component's wave ID and hook index.