On 24/06/2012, at 01:59, Mikeal Rogers wrote
> On Jun 23, 2012, at June 23, 20124:15 PM, Jorge wrote:
>> On 24/06/2012, at 00:43, Mikeal Rogers wrote:
>>> On Jun 23, 2012, at June 23, 201212:20 AM, Jorge wrote:
>>>>>
>>>> Object.create(null) objects are real JS objects and act like real JS
>>>> objects.
>>>
>>> yes, the language has warts, what is your point?
>>
>> That I agree 100% with Bert:
>>
>> On Fri, Jun 22, 2012 at 7:22 PM, Bert Belder <[email protected]> wrote:
>>>
>>> People shouldn't rely on prototype methods of objects that
>>> are used as hash tables. Same story for the http headers object, parsed
>>> querystring arguments etc.
>>
> what is our goal here?
>
> this is all fascinating but rather than call out the warts in the language
> and say people should avoid them we should be trying to make node not break
> or behave in an unexpected way for people that don't know the language as
> well as we do.
>
> node is not for javascript experts, it's for people that may be learning
> javascript, and we should avoid unexpected behavior.
>
> do we want to spend our time teaching people the cracks and crevices of
> JavaScript so they can use node or do we want to just make it work the way
> they'll expect?
The .hasOwnProperty() in Object.prototype has always been a bad idea because
any hasOwnProperty own property or any other hasOwnProperty property in the
object's [[prototype]] chain will shadow it so in the end -as was the case of
"with () {}"- you never know for sure *what* are you calling, nor even if what
you're calling is a callable.
For example, nobody should ever write
httpRequestHeaders.hasOwnProperty('Referer') because it's a bomb waiting to
explode. That's -I believe- what Bert meant, and I agree.
--
Jorge
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