On Sep 10, 2012, at 9:48 PM, Jason Orendorff <[email protected]> wrote:
> On Mon, Sep 10, 2012 at 12:50 PM, Kevin Smith <[email protected]> wrote: >>>> function f(x=EXPR1, y=EXPR2) { BODY } >>>> ===> >>>> function f(x, y) { >>>> if (x === void 0) x = EXPR1; >>>> if (y === void 0) y = EXPR2; >>>> BODY >>>> } >> >> I'm not so sure - the desugaring above would mean that default expressions >> would have visibility across curly-brace boundaries, which I find to be >> quite surprising. > > It is surprising. It could even bite unwary programmers. But in what > scope do you propose to evaluate default-param expressions? In their lexical scope. --tobie _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
