let function

Alexander Jones alex at weej.com
Tue May 19 21:55:45 UTC 2015

On 19 May 2015 at 02:02, Brendan Eich <brendan at mozilla.org> wrote:

> This seems like a better shorthand to discuss, compared to `let function`
> (which function-in-block covers already, as noted).

function-in-block does not have the same semantics as the proposed "let
function". It hoists, thus has no TDZ, and appears to preclude a reasonable
decorator syntax behaviour, and it has no provisions for const binding,
i.e. "const function".

    let f(x) => y

appears attractive indeed, but by virtue of it being an arrow function, has
lexical this and no prototype property. Also no generator syntax, unless
I'm missing something?

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