In the spirit of Beating the Averages (http://www.paulgraham.com/avg.html)
there is language called Imba (imba.io/) which I have found to be absolutely phenomenal for rapid prototyping and building.
Here is a short 49 second demo of the language features: https://www.youtube.com/watch?v=8XS5q9xhaMc
And here is a full course if you want to learn more: https://scrimba.com/learn/imba
For me, it has replaced JS/TS, CSS, HTML since Imba replaces all of the above.
Give it a whirl.