Is there one cours about "React rooter"?

Hello,

I didn’t find cours about “react router” in “FreeCodeCamp”.
Is there one or not ?

No. There isn’t one right now. I would check out there documentation and perhaps find some tutorials on youtube.

Do you know a good training cours about it ?

No. I think most people at that level can just work through the documentation. That’s what I did. But you can do a google search and see what you can find. I just know that FCC doesn’t have curriculum for it. There may be an FCC video somewhere. But again, a google or youtube search should turn it up.

Just make sure that whatever tutorial/docs you find are for the right version (presumably the latest) - I seem to remember some significant breaking changes in some of those versions.