Generate a class name dynamically in the code, and not written in hard in Tailwind CSS

Question

What does it mean to generate a class name dynamically in the code, and not written in hard?

Accepted Answer

The class will not be read because Tailwind reads the classes before the class name is dynamically generated

Answer

Nothing special, Tailwind waits for all the code to be executed to read all the class names of the project

Question from the Tailwind test