One learning from implementing the RPG Combat Kata in FP is that in @sanctuaryjs we thought that pipe() terminates execution if it receives a Nothing, but that's not the case. pipek() does that: https://github.com/codefreezefi/rpg-combat-kata-fp/commit/7a097d4fb470efb3b515abde2e4f878b74d7be6a#diff-e1d62d8c4965edf0e532dfa19da0891fR79

https://github.com/codefreezefi/rpg-combat-kata-fp

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