You don't know JS is also a great place to start.
+1 from me for Codecademy!
I second anything from Treehouse.
The Treehouse Course is excellent
I would recommend Udacity course
Learn Code Academy on Youtube is fantastic.
I'd echo a bunch of the comments here. I also suggest diving in and trying to code an interface such as GMail. I've always found that I learned more by coding and running into roadblocks vs going through a course.
When you say "specifically for UI/UX designers"? Do you mean a course with UI-oriented examples?
Because it's trendy
How much do you know already? What are you hoping to target with the "crafted specifically for UI.UX Designers" distinction?
If you are a visual learner like me, my money is on a pluralsight subscription for as long as you need to watch the courses you need. They have the most professional and technically in-depth courses you could want that go from beginner to pro.
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