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by emn13
2730 days ago
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Even a pure function has "state" - namely its (arbitrarily complex) inputs. But sure, it's a little less of a landmine. The fundamental issue remains that sometimes your knowledge about that state (whether the classical kind or a proper parameter) can be complex and dependent on what happened elsewhere, especially if the codebase your in was grown into that situation, and not designed like that per-se. A comprehensible set of preconditions and postconditions isn't always a luxury you have, certainly not at first. |
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