👉 A preact is a type of software that runs on a web browser. It's an extension to the standard JavaScript language, enabling developers to write code in a more modern and efficient way. Pre-acts are often used for creating dynamic websites or applications that can be accessed from various devices, including mobile phones and tablets. They are also popular in the development of mobile apps as they allow developers to create custom user interfaces without having to worry about technical details like server-side programming.