Try APL in your browser!
But first, a little motivation to get you started: Game of Life in APL. Pay attention to how interactive APL programming is completely different from other ✌🏽dynamic✌🏽 languages like Ruby or JavaScript. It's much more like Smalltalk or LISP.
https://m.youtube.com/watch?v=a9xAKttWgP4
Now try it for yourself: