I don’t know. I can write incomprehensible code in any language. It is to some extent the default. I have to work hard so as not to be the poor future reader (m

I don’t know. I can write incomprehensible code in any language. It is to some extent the default. I have to work hard so as not to be the poor future reader (myself) in 6 months thinking “where do i even begin…?” I find the repl encourages me to iterate quickly and when i set out to solve a problem, one of my goals is to express the solution in a nice way. The repl just reduces the cost of me trying different ways to achieve that. Whether i leave behind horrible or nice code isn’t really a factor of the repl, it’s a factor of whether i started with an intention to write understandable code. I usually do and the repl’s instant feedback and state retention makes that vastly easier. Sometimes i don’t set out with that intention though, i frequently have to process lots of text and regexp is just the easiest way for me usually - even though i accept it’s utterly impenetrable to many once you go beyond 10-20 chars or so in an expression. No repl involved in producing fairly impenetrable code.