The learning mode should now be visible to everyone.
Please let us know of broken links, typos, etc. I’m sure there will be rough edges at this stage. We have no money to pay bug bounties (obviously), so your reward is the satisfaction of showing that the syllabus authors are idiots. Go for it!
There are 20 concepts live at the moment (plus one which is just documents and no exercise). We intend to add more over the coming months: a couple of syntax concepts, plus some that are data science focused.
Anyone who last looked at R several years ago may be surprised at how much it has changed. Formerly object-oriented and general purpose (with mixed success), it is now functional-first, with lots of pipelines, and much more focused on data science.
I note that this week is the 3rd anniversary of starting to create this syllabus. After the Julia syllabus launched last year with some positive feedback, we got the same team back together to revitalize work on R. Many thanks to @depial for a huge amount of work on the syllabus, and @BethanyG for a major rewrite of the track tooling.