I am a fan of nouns(or gerunds) for pure functions, and verbs for mutating functions. I.e: x.add(y); // x now equals x + y x.adding(y); // returns x

I am a fan of nouns(or gerunds) for pure functions, and verbs for mutating functions. I.e: x.add(y); // x now equals x + y x.adding(y); // returns x + y without mutating x