Nah. Reduce is less performant and less readable than a regular loop. In my anecdotal experience, only people who want to appear smart and minimize the number of characters prefer reduce.
replyReduce definitely does not reduce character count. It's the loop-hacking that does that.
replyHowever, I agree it might be less performant, and it's a certain kind of thinking that isn't quickly grokked (and doesn't have to be). I deliberately tried to write my story about the interview so as to make it sound like there's positives and negatives to both positions expressed. _I_ have a preference for that functional style, but I know it's not for everyone. That's totally fine.
I don't know about JavaScript, but those statements are definitely not universally true in other languages.
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