I think many Haskell, OCaml and Scala programmers would disagree heavily with you. Repl driven development works very well with pure functional code and at no

I think many Haskell, OCaml and Scala programmers would disagree heavily with you. Repl driven development works very well with pure functional code and at no point did I feel an increase in loc begin to make it tedious or whatever. The repl approach perhaps doesn't work as well in Java because Java and its ecosystem encourage writing messy jumbled code built upon unsafe abstractions.