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A comment on “Mostly functional” programming does not work (2014). Parent comment

Re:“Mostly functional” programming does not work (2014) by TazeTSchnitzel on Monday June 22, 2015 @10:03AM (#9758352)
> In a pure one, you'll start to think how to redesign the computation to allow this... It's not wrong, but in many cases it's pointless.

Are you sure it's pointless? Having to show I/O in the type signature means you can't end up with accidental side-effects.

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Re:“Mostly functional” programming does not work (2014) by viraptor on Monday June 22, 2015 @10:12AM (#9758415)
In some cases - yes, pointless. You rarely care if a function logs something or not. If you do care, you can still return the log lines as an extra value and use the pure solution. At least you have a choice.
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