# Zustand State Management (React / Next.js)

> Zustand store, create, selectors, actions, middleware, devtools, persistence

- 18 interview questions
- Mid-Level
- [Interview Questions: React / Next.js](https://sharpskill.dev/en/technologies/react-next/interview-questions.md)

## 1. What is Zustand?

**Answer**

Zustand is a minimalist state management library for React that doesn't require a Provider, unlike Redux or Context API. It offers a simple API based on hooks and the create() function, with a very small bundle size (less than 1KB). Zustand enables global state management without the architectural complexity of Redux, while avoiding the performance issues of Context API.

## 2. How to create a basic Zustand store?

**Answer**

The create() function is used to initialize a Zustand store. It accepts a callback function that receives set and get as parameters, allowing you to define the initial state and actions. The returned store is a React hook that can be used directly in components. This approach eliminates the need for boilerplate like action creators or reducers from Redux.

## 3. How to access the state of a Zustand store in a component?

**Answer**

The store created with create() returns a React hook that can be called directly in functional components. This hook accepts an optional selector to extract only the necessary part of the state. Without a selector, it returns the entire state, but this can cause unnecessary re-renders. The hook-first approach makes Zustand very intuitive for modern React developers.

## 15 more questions available

- What is the role of a selector in Zustand?
- How to avoid unnecessary re-renders with selectors?

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## Other React / Next.js interview topics

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