ReactJS Masterclass: Beginner To Advanced – Build Real Projects (85+ Videos) - ReactJS Tutorial 65: useReducer Hook In React

🔧 Building a React app and need a backend? Learn FastAPI — the modern Python backend that pairs perfectly with React. ✅ JWT Authentication, OAuth, REST APIs — everything your React app needs. 👉 FastAPI Complete Course (limited discount): https://www.udemy.com/course/fastapi-course-python/?couponCode=YOUTUBE2026 📦 Also check out: • Django Masterclass (44hrs, 9 real projects): https://www.udemy.com/course/django-course/?couponCode=YOUTUBE2026 • Python Masterclass 2026 (80hrs):https://www.udemy.com/course/python-masterclass-course/?couponCode=YOUITUBE2026 ───────────────────────── In this lecture we will learn about the useReducer hook in React In React, useReducer is a hook that allows you to manage complex state logic in your components. It’s an alternative to useState but is particularly useful when your state depends on previous states or when you have multiple pieces of state logic that need to be handled. How useReducer Works useReducer accepts two arguments: A reducer function: This function specifies how the state should change in response to certain actions. It takes the current state and an action as arguments and returns the new state. An initial state: The starting state of your component. It returns: The current state. A dispatch function that you can call to send an action to the reducer to change the state.