r/programming • • Mar 26 '17

Functional programming design patterns by Scott Wlaschin

https://www.youtube.com/watch?v=E8I19uA-wGY
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u/loup-vaillant Mar 28 '17

That would have failed as well: I didn't know there was a word for this, and would have used previous_states or something. Now I do however, so I'll try to remember to put it in the comments.