On Sep 10, 2008, at 3:07 AM, Sam Ruby wrote: > In such a scenario, is there value in providing a Decimal wrapper type > at all?
So people can add methods that we did not think of to Decimal.prototype. But you assumed static methods only, so perhaps you meant to exclude this use-case. Extending standard constructor prototypes is frowned upon currently because such user-defined prototype properties are enumerable, but Object.defineProperty/ies stand ready. And people do use this use- case today, whether we like it or not. > It occurs to me that the latter case (looking up after wrapping) > trades a single wrapping at function entry against potentially > multiple wrappings that may occur inside the function. Wrapping must be done at most once, lazily on first |this| use if possible but at most once only, per |this| parameter binding. /be _______________________________________________ Es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
