Kevin Smith wrote:
The most bang for the buck, as I see it, is in this form:
(x, y) => { FunctionBody }
If => means bound-this, I agree this has a lot of bang/buck. Not clear
the b/b beats the expression-body case, though. More below.
If we have implicit return (which I think we can bundle in with the
"=> is different" meme), then we have a sufficiently succinct alternative:
(x, y) => { { p:x * y} }
I don't know about implicit return. TC39 wants to avoid it in anything
that looks like a function (body). Does the => distinguish this case
enough? Consider a large body-block.
I think (x, y) => expr can be difficult for human readers
(particularly non-experienced readers) to figure out anyway.
The sweet spot looking at PrototypeJS is a single expression body. There
are some longer inject funargs but they are the minority AFAICS.
Surveying other libraries would be helpful.
/be
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