はてなブックマーク

Functional Semantics in Imperative Clothing There's an old joke about programming with pure functions: “Eventually you have to do some effects. Otherwise you're just heating up the CPU.” I've always wanted the purely functional Roc programming language to be delightful for I/O-heavy use cases. But when I recently sat down to port an I/O-heavy shell script from Bash to Roc, I wasn't happy with how