zustand-store-patterns

Create a Zustand store using the create function to define state and actions. Pass an initial state and action methods to create, then export the hook for use in components. This gives you a lightweight, scalable alternative to Redux or Context API.

Selectors extract specific pieces of state from your Zustand store, enabling components to subscribe only to the data they need. This prevents unnecessary re-renders and improves performance, especially in large applications with complex state trees.

Organize large stores into logical slices by defining separate functions that return state and actions for each domain, then combine them with the spread operator in create. Slices keep your store modular, maintainable, and easier to scale as your app grows.

Yes, Zustand supports shallow equality checks for multi-selectors to prevent unnecessary re-renders when multiple state values are selected together. Use the shallow comparison option to optimize performance when selecting multiple related state properties.

Use getState to read the current store state and setState to update it from outside components. These methods let you interact with your Zustand store in event handlers, utilities, and non-React code without component coupling.

Actions are explicit functions that modify state, while direct mutation is avoided in Zustand. Using actions provides predictability, debugging clarity, and traceability of state changes, making large stores easier to maintain and test.