I went through the same process as you. I think it's okay not to have hard and fast rules for every acceptable situation to leave off parentheses, it's more a judgement call based on the readability of the statement.
`Require` and `console.log` are perfect examples where leaving off the parentheses helps with clarity, same with the call to `createServer`. In your example I'd even argue that you could do the same with `res.end` too.
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I went through the same process as you. I think it's okay not to have hard and fast rules for every acceptable situation to leave off parentheses, it's more a judgement call based on the readability of the statement.
`Require` and `console.log` are perfect examples where leaving off the parentheses helps with clarity, same with the call to `createServer`. In your example I'd even argue that you could do the same with `res.end` too.