It sounds like you're referring to the popular by Jonas Schmedtmann on Udemy.

The interesting feature is that By the time you finish the final projects, you aren't just copying his code; you understand how to structure a file system, how to debug using the browser console effectively, and how to refactor messy functions into clean, professional code. It bridges the massive gap between "knowing syntax" and "being a developer."

Jonas Schmedtmann is a professional web developer and instructor with over 10 years of experience in the industry. He has a strong background in JavaScript, front-end development, and web design. He is known for his engaging teaching style and ability to explain complex concepts in a clear and concise manner.

This course is suitable for:

The course is divided into several sections, covering the following topics:

The flagship project of the course is , a recipe search application. This is where the "2020" (and subsequent updates) version truly shines. Jonas doesn't just let you write "spaghetti code" (code that is messy and hard to follow). He formally introduces you to the Model-View-Controller (MVC) Architecture .