* (where it to exist, see the next point) => (were it to exist, see the previous point)
On Tue, Sep 24, 2013 at 12:45 PM, Adam Crabtree <[email protected]>wrote: > There's a combination of things going on here: > > 1. There has been discussion on ESDiscuss[1] of __proto__ and the > insufficiencies of Object.create, specifically when you want to set the > __proto__ of something other than an Object (e.g., Functions, Errors, > Arrays, etc...). I don't know what the current state of this feature is, > but I know it at least has been raised and acknowledged as a gap in > functionality that __proto__ fills[2,3]. > > 2. I was mistaken earlier when I said Function.create would be > insufficient for my use cases (and thus would require `fn.__proto__ = > ...`). In fact, in both of my use cases I am setting the proto of functions > I have created, and therefore a Function.create (where it to exist, see the > next point) would be sufficient. > > 3. Regarding times where I may want to assign the proto of objects, > functions, arrays, errors, I don't own, I personally don't have a usecase > ATM, but I can easily imagine how that would be incredibly useful for any > type of library that shims, wraps or augments core or any built-ins to > extend their functionality seamlessly. If these sorts of libraries don't > already exist, I would hate to unnecessarily break the requisite > functionality before they have a chance to. > > Cheers, > Adam Crabtree > > [1] http://esdiscuss.org/topic/function-create > [2] > http://perfectionkills.com/instanceof-considered-harmful-or-how-to-write-a-robust-isarray/ > [3] > http://perfectionkills.com/how-ecmascript-5-still-does-not-allow-to-subclass-an-array/ > > > On Tue, Sep 24, 2013 at 11:58 AM, Rick Waldron <[email protected]>wrote: > >> >> >> >> On Tue, Sep 24, 2013 at 1:34 PM, Adam Crabtree <[email protected]>wrote: >> >>> Object.getPrototypeOf would not help me at all since it would not allow >>> me to assign a *new* __proto__ to a function I just created, but I *am* >>> mistaken, Function.create() would be sufficient in my cases. >>> >>> There's still more flexibility in __proto__ to reassign __proto__, which >>> Function.create and Object.getPrototypeOf would not provide. >>> >> >> I'm certain you mean Object.create, but otherwise I understand where >> you're going. Though this point was clear in your previous message, I'm >> still interested in understanding what circumstances your program is in >> where it needs to re-assign the [[Prototype]] of objects it doesn't own. >> >> Anyway, the solution you need is Object.setPrototypeOf(), which is >> specified for inclusion in ES6. >> >> Rick >> >> -- >> -- >> Job Board: http://jobs.nodejs.org/ >> Posting guidelines: >> https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines >> You received this message because you are subscribed to the Google >> Groups "nodejs" group. >> To post to this group, send email to [email protected] >> To unsubscribe from this group, send email to >> [email protected] >> For more options, visit this group at >> http://groups.google.com/group/nodejs?hl=en?hl=en >> >> --- >> You received this message because you are subscribed to the Google Groups >> "nodejs" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > > > -- > Better a little with righteousness > than much gain with injustice. > Proverbs 16:8 > -- Better a little with righteousness than much gain with injustice. Proverbs 16:8 -- -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en --- You received this message because you are subscribed to the Google Groups "nodejs" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
