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Then we extract different semantic value from the same code. To me both grep and map make me start looking for where the return is going, because the return is likely to be the point of the operation. By contrast a for loop tells me that the action of the loop is what I should focus on. This bias is strong enough that while I am happy to have loops have side-effects, I will go out of my way to rewrite maps or greps with side-effect in their blocks to be regular loops instead.

If you are not the only maintainer of your code, it might be worthwhile to find out what both constructs mean to them. Remember that meaning is highly dependent on the context that the reader brings to the document. If people around you read it the same way, then the map solution may well be more maintainable in your environment. If they read it differently, then it may be better to retrain your intuition to match theirs. This kind of issue is one where having people be on the same page matters more than what page everyone is on.


In reply to Re: Re: Re: Think for yourself. by tilly
in thread is the use of map in a void context deprecated ? by arno

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