Ask HN: Suggest something to learn in a week for Full Stack Developer

1 points by scarecrowx 7 years ago · 0 comments · 1 min read

I am self-taught programmer worked with JavaScript (MEAN Stack/React), Python (Data Engineering), Java (Serverless) and Ruby or Rails with total 3 years of experience. I am free for one week and I want to utilize to learn something new that can help me in the future.

Please suggest some book, course, technologies or programming language.