docs(updating-state): use curried create form with explicit state type

[TheSeydiCharyyev]

updating-state.md creates a typed store with the non-curried create<T>(...) form:

const usePersonStore = create<State & Action>((set) => ({

When the state type is annotated explicitly, Zustand's own TypeScript guides require the curried form create<T>()(...):

• Advanced TypeScript Guide: "instead of writing create(...), you have to write create<T>()(...) (notice the extra parentheses () too along with the type parameter)".
• Beginner TypeScript Guide: the store example uses create<BearState>()((set) => ...).

Every other example across the docs that annotates the state type uses the curried form — this guide is the only one that doesn't, which is misleading since updating-state.md is one of the first guides a beginner reads.

Diff

- const usePersonStore = create<State & Action>((set) => ({
+ const usePersonStore = create<State & Action>()((set) => ({

Docs-only change — no changeset needed.

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Project	Deployment	Actions	Updated (UTC)
zustand-demo	Ready	Preview, Comment	May 20, 2026 10:25am

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