Re: Protocol for "new" and "instanceof"?

On Oct 21, 2011, at 19:08, Axel Rauschmayer wrote: >> Also, in general this sort of well known private method name hook is much >> more extensible than "internal method" as currently used in the es spec. >> They also avoid the need to polute the Proxy API > > Reified names (private or otherwise

Re: new ECMA262 5.1 engine

> contributions to test262 test262 is great, thanks! > see http://wiki.ecmascript.org/doku.php?id=harmony:regexp_match_web_reality Oh, Thanks. This is very good document. I saw http://wiki.ecmascript.org/doku.php?id=harmony:regexp_match_web_reality and http://wiki.ecmascript.org/doku.php?id=stra

Re: Array.prototype[0] setter

Are there tests for this? David Le 18/10/2011 21:37, Allen Wirfs-Brock a écrit : > On Oct 18, 2011, at 12:31 PM, felix wrote: > >> If I define a setter for Array.prototype[0], does [].push invoke that setter? > It's supposed to. > >> Test code: >> >> >> >> Object.defineProperty( >>Array.pr

Re: new ECMA262 5.1 engine

On Sat, Oct 22, 2011 at 5:30 PM, Yusuke Suzuki wrote: > BTW, I thought that the example in > http://wiki.ecmascript.org/doku.php?id=strawman:match_web_reality_spec >  exec(/(?=a)+/, ""); > should return false. Is it right? In ES5, it should be a syntax error. The positive look-ahead is an Assert

Determining the super-types

It might make sense to provide this as standard functionality: - Testing if one type is a subtype of another type. - Returning all supertypes of a given type. This is especially useful if a type can significantly change the behavior of its subtypes and if there should ever be several ways of hand

Terminology: types, constructors, classes, …

Sorry for bringing this up again, but I’m still having trouble with naming things properly in JavaScript. - What do you call something that produces instances in JavaScript? A class? A type? A constructor? Or is a constructor the implementation of a type? - Are Date and RegExp built-in types? W