It uses join, and also a bad one

yours is the first one that doesn't use a join. I didn't use a join either

Specifying multiple tables in FROM clause is the same as making a CROSS JOIN.

Of all the solutions about yours, yours is the first one that doesn't use a join. I didn't use a join either as it was not necessary.

hi! Feature request here, it would be great if I could save my preferences in the kata search list.. I want to always see: approved kata for my languages, which I have not completed, sorted by difficulty. I always have to toggle the last two filters myself, which is very irritating when I'm just going between the list view and the kata explanations to see which kata I will tackle next.

And I know that I can just use the URL parameters or use the back button, but saving my preferences (even just for the duration of the session) would be so much less frustrating.

The description did not mention anything about lowercase or uppercase. Please either change the test so it becomes case-insensitive or update the description. Thanks.

Would have been prevented by you following the description too. :D

My code was correct, except I needed to write beast and weirdo in all caps - only found that when reading the full diff. This could have been prevented by normalizing the solution....