[??] document use with expression functions about core HOT 3 CLOSED

Yes, that pattern works, but it's harder to debug in the browser console because the function is anonymous.

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I thought that modern JS engines would detect this kind of a pattern as a function declaration (Babel JS seems to do this), oh well. Closing for now.

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To be honest, I do use the pattern occasionally myself. But I tend to use named functions as much as possible. I know it's fashionable for devs these days to use arrow functions as much as possible. I prefer to use them for what they were designed for: lambdas.

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