Make the imperative shell just thin glue; the functional core pure and heavily tested; they communicate by message passing.
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please blog. Inherited a project that 1/4 implemented VIPER w/ no tests. More code w/ no benefit. Not sure V is worth it…
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Sounds super misguided. I'm hoping to give a talk about this stuff in October at CocoaConf. Will hopefully blog afterwards.
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Imperative shell is like a switchboard operator: not a part of the conversation, just someone with two plugs to connect.
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Yes. Also, it creates state by attaching identity to values, which I don't know how to fit into that metaphor.
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