Zustand is a highly performant and flexible state management library for React applications. It allows developers to create state stores easily without complex setups or patterns. Zustand uses an intuitive API, making it a great choice for managing both local and global state in React projects, no matter the size.
Advantages of Using Zustand
- Minimal Boilerplate: Zustand requires minimal setup compared to libraries like Redux. You can create and modify a state store with just a few lines of code.
- Performance: It’s optimized to prevent unnecessary re-renders, ensuring components only re-render when their state changes.
- Flexible: Zustand is extremely flexible, allowing multiple stores and supporting synchronous and asynchronous actions without the need for middleware.
- Devtools Support: It integrates with Redux DevTools, making debugging and inspecting state changes during development seamless.
- Lightweight: Zustand is a small library (~1KB gzipped), ensuring it doesn’t bloat your application.
Zustand vs Redux: Key Differences
- Boilerplate:
- Redux: Requires setting up actions, reducers, and middleware, leading to boilerplate-heavy setups.
- Zustand: Allows direct state manipulation with almost no boilerplate. You can modify state directly inside the store.
- State Management:
- Redux: Uses a single centralized store with strict patterns (actions, reducers).
- Zustand: Provides a more flexible, store-based state management approach, allowing multiple independent stores and more freedom in structure.
- Middleware:
- Redux: Relies heavily on middleware like Redux Thunk or Saga for side effects (async operations).
- Zustand: Supports async actions out of the box with JavaScript’s native
async/awaitor promises without additional libraries.
- Learning Curve:
- Redux: Has a steeper learning curve due to its strict architecture and pattern requirements.
- Zustand: Simpler to learn with a natural API similar to JavaScript, making it easy for developers to pick up.
Example Project: Todo List Using Zustand in TypeScript
1. Install Zustand:
npm install zustand
2. Create the Store (TypeScript):
import { create } from 'zustand';
interface Todo {
id: number;
text: string;
}
interface TodoStore {
todos: Todo[];
addTodo: (todo: Todo) => void;
removeTodo: (id: number) => void;
}
export const useTodoStore = create((set) => ({
todos: [],
addTodo: (todo) =>
set((state) => ({
todos: [...state.todos, todo],
})),
removeTodo: (id) =>
set((state) => ({
todos: state.todos.filter((todo) => todo.id !== id),
})),
}));
3. Create the TodoList Component (TypeScript):
import React, { useState } from 'react';
import { useTodoStore } from './todoStore';
function TodoList() {
const todos = useTodoStore((state) => state.todos);
const addTodo = useTodoStore((state) => state.addTodo);
const removeTodo = useTodoStore((state) => state.removeTodo);
const [inputValue, setInputValue] = useState('');
const handleAddTodo = () => {
addTodo({ id: Date.now(), text: inputValue });
setInputValue('');
};
return (
Todo List
setInputValue(e.target.value)}
/>
{todos.map((todo) => (
-
{todo.text}
))}
);
}
export default TodoList;
The Conclusion
Zustand offers a lightweight, flexible alternative to Redux for managing state in React applications. With its minimal setup and highly optimized performance, Zustand fits perfectly into both small and large-scale applications.