Parallel Routes in Next.js: A Complete Guide to Dynamic Layouts

Dive into the powerful concept of Parallel Routes in Next.js! This video explores how to display multiple pages simultaneously within a shared layout, manage state persistence across navigation, and leverage features like loading and error handling. Learn the differences between using components versus pages, how to create persistent slots, and resolve common issues like 404 errors with default files. We also showcase practical examples, such as creating a login overlay with blurred backgrounds and implementing tab-like behavior with stateful navigation. This is a must-watch for developers looking to build dynamic, user-friendly layouts in Next.js!

00:00 Next.js Parallel Routes Intro
01:19 Use cases and benefits of using Parallel Routes
06:15 An example of using parallel routes in Next.js 15
10:03 Another example of using parallel routes system
13:52 Show loading for slots in parallel routes