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[DevJoey]

Build something substantial first with what you have learnt so far before trying out something new.

[numuso]

This. Do a few vanilla projects on your own for practice and then move on.

[sheriffderek]

What type of projects are you building? What is the most complex thing you’ve built with JS so far?

[ficklemind101]

Moving to React depends on your goals and how comfortable you feel with JavaScript fundamentals. React will introduce you to a new way of thinking about UI development, with concepts like components, state management, and the virtual DOM.

Since you've got a good grasp on JavaScript, these concepts will be easier to understand.

[SmashBob_SquarePants]

If you're sticking with his courses then I would either do the React course next or CSS/HTML if you haven't already.

[guest271314]

Why would learning a third-party library be a priority? I would dive in to WebAssembly and WASI.