One of the things I really like about dynamic languages like javascript & python is the repl. After you’ve gotten used to that type of exploratory programming, it’s hard to go back to the edit/compile/run cycle. Luckily that has finally changed with cling. It’s an interactive C++ environment that behaves pretty much like a repl. In my recent projects I’ve been adding a new make rule: repl which lets me interactively play with the code I’m working on and it has drastically improved m...