For some strange reason esdiscuss.org has garbled that link! For the benefit of those readers:
https://github.com/alex-weej/es-reflect-type-proposal (Apologies for spam) On 2 June 2015 at 23:10, Alexander Jones <[email protected]> wrote: > I've written this up as a strawman. It's available at > https://github.com/alex-weej/es-reflect-type-proposal > > Thanks > > On 15 May 2015 at 00:37, Alexander Jones <[email protected]> wrote: > >> I'm sure there will evolve some other nomenclature for that in due >> course. From http://www.slideshare.net/BrendanEich/value-objects2 it >> sounds as if it would be reasonable to define `Type(x)` to be `Value`, and >> thus `Reflect.type(x)` to be `Reflect.types.value`. >> >> Agree with the Symbol labels. >> >> >> On 14 May 2015 at 18:50, Andrea Giammarchi <[email protected]> >> wrote: >> >>> FWIW, I think whatever contains "type" in modern JS should consider >>> `int32`, `float64`, and all TypedArrays plus it would be awesome to have a >>> way to define own types. >>> >>> In any case, if your idea will be implemented, I think it should have >>> named Symbols for debugging sake. >>> >>> ```js >>> Symbol('undefined'), >>> Symbol('null'), >>> Symbol('boolean') >>> ``` >>> >>> This would be at least consistent with current implementations of >>> `Symbol.iterator` and friends. >>> >>> Best Regards >>> >>> >>> >>> >>> On Thu, May 14, 2015 at 5:29 PM, Alexander Jones <[email protected]> wrote: >>> >>>> Just an idea, if it doesn't already exist somewhere. >>>> >>>> Reflect.type(x) would match the spec's Type(x) function, in that it >>>> would basically be a better, more convenient typeof, i.e. >>>> >>>> Reflect.types = { >>>> undefined: Symbol(), >>>> null: Symbol(), >>>> boolean: Symbol(), >>>> string: Symbol(), >>>> symbol: Symbol(), >>>> number: Symbol(), >>>> object: Symbol(), >>>> } >>>> >>>> Reflect.type(null) === Reflect.types.null >>>> Reflect.type(function() {}) === Reflect.types.object >>>> >>>> We weren't able to fix typeof null in harmony, but this seems like a >>>> good opportunity to introduce something new. Haven't thought about the >>>> repercussions of future support for new value types... >>>> >>>> Any thoughts? >>>> >>>> _______________________________________________ >>>> es-discuss mailing list >>>> [email protected] >>>> https://mail.mozilla.org/listinfo/es-discuss >>>> >>>> >>> >> >
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