There are sites that are popular like "The Odin Project" for MERN. But what for other things that aren't having such dedicated websites? How do we figure out what topics should we learn?
For eg: In university courses, we've a syllabus for everything.
This is the syllabus of Discrete Mathematics of Mumbai University. It's not like everything in the world about discrete math was taught in this syllabus/contents. But enough was taught so that students could learn other concepts and other courses of Undergraduate that have discrete math as preriquisites. That's exactly what I'm needing.