Ahhh, nothing. I never think about destructuring. Thanks!
On Fri, Mar 4, 2016 at 1:41 PM, Caitlin Potter <[email protected]>
wrote:
> > Object.entries does look nice, but 2 arguments is more straightforward
> than a passing around a pair.
>
> What’s the problem with `for (let [key, value] of Object.entries(obj)) {
> …. }`
>
> > As well (and perhaps more importantly), temporarily building an array of
> arrays so we can forEach it, seems way less efficient than forIn is/would
> be.
>
> You might be surprised — If the pair never reaches geriatric status (old
> generation/tenured space, etc), it could be allocated and cleaned up
> relatively quickly.
>
> On Mar 4, 2016, at 1:28 PM, Langdon <[email protected]> wrote:
>
> My gripe with Object.keys is that it requires a closure to use effectively.
>
> Object.entries does look nice, but 2 arguments is more straightforward
> than a passing around a pair.
>
> As well (and perhaps more importantly), temporarily building an array of
> arrays so we can forEach it, seems way less efficient than forIn is/would
> be.
>
> On Fri, Mar 4, 2016 at 1:20 PM, Isiah Meadows <[email protected]>
> wrote:
>
>> Yeah, and those effectively nullify this, anyways.
>>
>> On Fri, Mar 4, 2016, 12:55 Simon Blackwell <[email protected]>
>> wrote:
>>
>>> Not sure of the rationale; however, it looks like Chrome now supports
>>> something similar natively:
>>>
>>>
>>>
>>>
>>> https://twitter.com/malyw/status/704972953029623808?utm_source=javascriptweekly&utm_medium=email
>>>
>>>
>>>
>>> *From:* es-discuss [mailto:[email protected]] *On Behalf
>>> Of *Langdon
>>> *Sent:* Friday, March 4, 2016 11:22 AM
>>> *To:* [email protected]
>>> *Subject:* Object.prototype.forIn
>>>
>>>
>>>
>>> My apologies if this has been discussed before (I have to imagine it
>>> has, but couldn't find anything).
>>>
>>>
>>>
>>> Why isn't there a `forIn` method on Object natively?
>>>
>>>
>>>
>>> Something that simply wraps this all-to-common code:
>>>
>>>
>>>
>>> var key;
>>>
>>>
>>>
>>> for (key in obj) {
>>>
>>> if (obj.hasOwnProperty(key) === true) {
>>>
>>> ...
>>>
>>> }
>>>
>>> }
>>>
>>>
>>>
>>> Example: https://jsfiddle.net/langdonx/d4Lph13u/
>>>
>>>
>>>
>>> TIA,
>>>
>>> Langdon
>>> _______________________________________________
>>> es-discuss mailing list
>>> [email protected]
>>> https://mail.mozilla.org/listinfo/es-discuss
>>>
>>
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>
>
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