How to Build Dark Mode in React Right

In this tutorial, I teach React useContext step by step using real-world examples that you will actually use in production.

We start by understanding the syntax of useContext, then move into two powerful examples:

🔐 Authentication (login & logout)

🌗 Theme switching (dark mode & light mode)

I also show you:

How to work faster using React Simple Snippets

Useful useContext tricks & shortcuts

How to practice directly in the browser using React Playground

How the same concepts work in Next.js (App Router + TypeScript)

By the end of this video, you’ll fully understand when and why to use useContext, and how to avoid common mistakes beginners make.

⏱️ Timestamps

00:00 – Introduction
01:13 – Installing React Simple Snippets
05:06 – Authentication Example (Login & Logout)
22:00 – Dark & Light Mode Theme Switching

🚀 Who this video is for

React beginners & intermediates

Developers learning Next.js App Router

Anyone struggling with prop drilling

Developers preparing for interviews

👍 If this helped you

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