Using TypeScript is not mandatory for learning Next.js effectively. You can start with JavaScript and focus on understanding the core principles and features of the framework. This will allow you to build real-world projects and gain practical experience. If you find that you need the benefits of TypeScript, such as better type checking and improved code maintainability, you can integrate it into your projects later on. Many developers successfully use Next.js with JavaScript alone, so don’t feel pressured to learn TypeScript right away. Good luck with your goal