How to submit solutions for javaScriptmas?

I solved the first three challenges (or at least know the solution and have the code) but I don’t know how to submit it, I got notes in the vidoes and when i run the tests it passes, but how do i make the bar “complete”? couldn’t they do it like here? it’s also more simple

I think you have to sign-in/join their website to submit the solutions and be eligible for the prize.

ok nevermind so apearently you have this video in their site