Andreas Rossberg wrote:
I think this subtle discrepancy is both unfortunate and unnecessary [1]. Moreover, with ES7 do expressions, I would like it to hold that(...) => {...} ≡ (...) => do {...}
I channeled you as best I could, and Dmitry Lomov kindly channeled you on this point, but more than a few TC39ers objected that the left arrow function, with a body block instead of a body expression, has different semantics already, ignoring whether let x; in the body block could shadow a parameter x. First, 'return' is the only way to return a result in the left example, whereas thanks to do-expression being an expression, the completion value (reformed) of the right ... is the return value, even without 'return'.
I wanted to pass this back ASAP. More is being recorded in the meeting notes, but here you go. We'll keep channeling you as best we can!
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