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I treat the 'if' statement and the '!ruby_dev' conditional as separate entities. That allows thinking of the conditional alone in boolean logic terms, instead of having to consider the outside prefix statement too.

Therefore, coming from a computer science background I don't like 'unless'.

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I could see that. Maybe it really is because I'm more of a writer than a computer scientist.

(For context: I dropped out of comp sci and took a job as a web dev ~18 years ago. Never looked back. But have ended up learning more about copywriting and marketing than computer science along the way.)

I'm a computer scientist and not much of a writer yet I prefer the use of "unless" over a negated "if". Then again, at the start of my career I used quite a bit of Perl and it was created by a linguist.

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