reason), so while it's still useful, it's
just not used in the same places it was used previously.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Sun, Aug 16, 2020 at 6:39 PM Michaël Rouges wrote:
>
> Hi all,
>
> Since JSDoc seems cerebrally dead, why the TC39
imports to dedupe them and
then resolve them accordingly when executing them, rather than
consulting external caches every time. (It's also easier for the
engine to handle, assuming they don't do this already.)
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Thu, Jul 16, 2020
eviction).
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Tue, Jun 30, 2020 at 11:57 PM Andrea Giammarchi
wrote:
>
> even if dereferenced, a dynamic import could re-reference it any time, and I
> would expect it to still be the same module, it'd be a surprise
Just to expand on that, if the module record itself is dereferenced
(like if it's evicted from the cache somehow), then yes, it should be
collected as appropriate. However, I'm not aware of any major
implementation that offers that functionality.
-
Isiah Meadows
cont...@isiahmeadows.com
Missed the list. Also, it apparently does trigger setters. Crossed it up
with spread properties (which don't).
On Fri, May 1, 2020 at 06:28 Isiah Meadows wrote:
> I thought `Object.assign`already used the `Object.keys` +
> `Object.defineProperty` algorithms under the hood and thus were
.
On Tue, Feb 11, 2020 at 08:44 Isiah Meadows
wrote:
> You have proof of this? That it doesn't produce a dense array in engines?
>
> On Mon, Feb 10, 2020 at 01:09 Andrea Giammarchi <
> andrea.giammar...@gmail.com> wrote:
>
>> Unfortunately, `Array.from({ length: 4 }
be any
>>>> different
>>>>
>>>> > I _think_ that moderns virtual machines already did these
>>>> optimisations despite there isn't a TypedArray like that.
>>>>
>>>> It's a bit of a mess to create an Array that is not holed and gets best
>>>> optimizations [1]
closer to feature parity.
--
-
Isiah Meadows
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in reverse.
>
> On Sat, 1 Feb 2020 at 23:12, Mark S. Miller wrote:
>
>> 3 < 2 < 1; // true
>>
>>
>> On Sat, Feb 1, 2020 at 3:03 AM Naveen Chawla
>> wrote:
>>
>>> Certain languages allow the expression 0>> would be syntactically pos
> es-discuss mailing list
>>> es-discuss@mozilla.org
>>> https://mail.mozilla.org/listinfo/es-discuss
>>>
>> ___________
>> es-discuss mailing list
>> es-discuss@mozilla.org
>> https://mail.mozilla.org/li
_
> es-discuss mailing list
> es-discuss@mozilla.org
> https://mail.mozilla.org/listinfo/es-discuss
>
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Isiah Meadows
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www.isiahmeadows.com
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https:
no mention in
the repo, in the open issues, or even in the closed issues or any of
the open or closed pull requests.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Tue, Dec 3, 2019 at 5:43 AM Michael Luder-Rosefield
wrote:
>
> At the cost of adding more code, but givin
it would resolve a tree of parallel and series like following with
>>>> traditional promises
>>>>
>>>> p0
>>>> .then(x0 => {
>>>> const x11 = f11()
>>>>
>>>> return Promise.all([p1(x0), p3(x11)])
>>>> .then((x1, x3) =>
>>>> p2(x1)
>>>> .then(x2 =>
>>>> p10(x2, x3)
>>>>
-control-flow-proposal
[4]: https://esdiscuss.org/topic/stream-async-await
[5]:
https://esdiscuss.org/topic/improved-syntax-for-observable-mapping-and-subscribing
[6]: https://github.com/isiahmeadows/proposal-generator-fork
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Wed
-operator/issues/159
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Thu, Nov 14, 2019 at 4:21 AM Cyril Auburtin wrote:
>
> the `do` operator might be good enough
>
> ```js
> const z = do { const z = x?.y?.z; z ? doSomethingWithValue(z) : null; };
> ```
>
&
ally minor nice-to-have makes it in, though...
-----
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Thu, Nov 7, 2019 at 4:23 PM Alex Kodat wrote:
>
> Gus,
>
> Sure, but your (const) example is simply syntactically invalid –
> syntactically invalid code will
om what you imagined though, most importantly it doesn't
> offer any declarations.
>
> kind regards,
> Bergi
> ___
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> es-discuss@mozilla.org
> https://mail.mozilla.org/listinfo/es-discuss
>
> ___
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>> https://mail.mozilla.org/listinfo/es-discuss
>>
> _______
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> es-discuss@mozilla.org
> https://mail.mozilla.org/listinfo/es-dis
adding new syntax for it.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Wed, Oct 9, 2019 at 3:08 AM Andrea Giammarchi
wrote:
>
> I don't know why this went in a completely unrelated direction so ... I'll
> try to explain again what is `await?` about.
>
&g
ger act
> like the custom element – xxx.Field isn’t defined. The script selecting it
> is at “Window” level, so shouldn’t it “cast” correctly?
> ___
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> https://mail.mozilla.org/listinfo/es-discuss
>
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If you look in the proposal's repo, they explain the rationale behind the
identifier:
https://github.com/tc39/proposal-global/
Here's a short summary: `globalThis` is the same value you get from
evaluating `this` in the global scope of a sloppy mode script. This is
subtly different than a "global
Nit: Acorn's *output* is based on Esprima. Its code is *not* and
hasn't been for a few years now. It started a fork of Esprima, but it
wasn't long before it was rewritten the first time.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Mon, Sep 16, 2019 at 1:58 AM kai zhu
rating an AST for tooling and
generating an AST to execute. In the former, you want as much info as
possible readily available. In the latter, you just want to have the
bare minimum to compile to bytecode with relevant source locations for
stack traces, and anything else is literally just unnecess
k ends,
>>>> unnecessary guards that force serialization in interface libraries just to
>>>> cope with (and effectively negate) it, and API rate limiting. This feature
>>>> teaches the best practice that the level of concurrency should be mindfully
>>>> chosen. However, those who really want it can specify "concurrency
>>>> items.length" or similar.
>>>>
>>>> *"What about async iterators?"*
>>>>
>>>> The feature should also be supported here:
>>>>
>>>> ```js
>>>> for *async* (item of items *concurrency 5*) {
>>>> // db.insert is an async function
>>>> await db.insert(item);
>>>> }
>>>> ```
>>>>
>>>> While the async iterator itself is still sequential rather than
>>>> concurrent, frequently these can supply values considerably faster than
>>>> they are processed by the loop body, and so there is still potential
>>>> benefit in having several items "in the hopper" (up to the concurrency
>>>> limit) at a time.
>>>>
>>>> --
>>>> Chief Software Architect
>>>> Apostrophe Technologies
>>>> Pronouns: he / him / his
>>>> ___
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>>>> es-discuss@mozilla.org
>>>> https://mail.mozilla.org/listinfo/es-discuss
>>>>
>>> ___
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>> es-discuss@mozilla.org
>> https://mail.mozilla.org/listinfo/es-discuss
>>
> ___
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> es-discuss@mozilla.org
> https://mail.mozilla.org/listinfo/es-discuss
>
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Isiah Meadows
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Not sure this pertains to the ECMAScript spec in any way. You may have
better luck with WICG, because they are who deal with those specs -
those are specific to the web, while JS is used in places where those
might not even make sense (like IoT sensors).
-
Isiah Meadows
cont
an
`async constructor(...) { ... }` instead of an `async class`.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Mon, Aug 26, 2019 at 11:11 AM Dimitrian Nine
wrote:
>
> Ok so much time has passed. I have learned more js. And created some
> [wrapper][1] for my idea
BTW, that very example is something I cover in my proposal's
introduction. It's also part of why I want an operator - this is one
of the few times where spreading FUD *is* a good idea IMHO.
https://github.com/isiahmeadows/proposal-divisor-dependent-modulo/
-
Isiah Meadows
cont
it'd be fast.)
I at one point had it in my list of wishlist proposals, but it somehow
disappeared. I've since recreated it:
https://github.com/isiahmeadows/es-stdlib-proposals/blob/master/proposals/array/interleave.md
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Thu, Aug 15
an operator as opposed to syntax for this.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Thu, Aug 15, 2019 at 3:58 PM Jordan Harband wrote:
>
> Static functions don't have the same risk as prototype functions; `Math.mod`
> would make sense to add.
>
> One sug
on) that interprets `-a ** b` and `-a**b` *differently* in light
of that (as `(-a) ** b` and `-(a ** b)` respectively). That's not a
concern at all with most operators, so it doesn't apply to most new
operator proposals.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Thu, Aug 15, 2019
a function for
this kind of modulus operation, not an operator. That itself seems
worth noting.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Tue, Aug 13, 2019 at 10:27 AM Michael Haufe wrote:
>
> I would prefer the syntax be ‘a mod b’ consistent with my wishlis
).
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Sun, Jul 28, 2019 at 10:46 PM Ranando King wrote:
>
> On one hand, I agree with Jordan. Don't grief the language due to a bad 3rd
> party API. Whether we accept it or not, a browser's API is a 3rd party API
>
return or store
`document.all` ever.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Sat, Jul 27, 2019 at 5:20 PM Michael Haufe wrote:
>
> More than one case:
>
>
>
>
>
> var foo = f()
>
> typeof foo // object
>
> foo instanceof
ase taking advantage of something that is
currently invalid.
BTW, I'm no longer behind my suggestion, and was never strongly in
favor of it to begin with.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Tue, Jul 9, 2019 at 2:50 PM ViliusCreator
wrote:
>
> Lexer already see
Just an update to you all: I'm only very weakly for this, and I'm okay
to rescind this suggestion.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Fri, Jun 28, 2019 at 5:01 PM Waldemar Horwat wrote:
>
> On 6/28/19 8:41 AM, Isiah Meadows wrote:
> > Currently, th
. Could
the grammar be amended to include this production and make it evaluate
equivalently to `a+ +b`
AdditionExpression :: AdditionExpression `++` [no LineTerminator here]
UnaryExpression
--
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
, 2019 at 11:25 Isiah Meadows wrote:
> Agreed in that it's not ambiguous - you have to disambiguate it with a
> space for the same reason you have to use `a+ +b` instead of `a++b` in
> minified code to avoid ambiguity when specifying `a + +b`. So `a?.b:.c`
> would be invalid, b
_
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>> es-discuss@mozilla.org
>> https://mail.mozilla.org/listinfo/es-discuss
>>
> ___
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> es-discuss@mozilla.org
> https://mail.mozilla.org/listinfo/es-discuss
>
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ry operator would be ambiguous.
>>
>> ```
>>
>> const contactSelector = true ? .contacts.email : .contacts.phone;
>>
>> ```
>>
>>
>> --
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
___
Suggest it here, or if you prefer, you can also suggest it in IRC at
#tc39 on Freenode. People from TC39 are usually present here, and you
can also find them elsewhere, too. You can find more info here:
https://github.com/tc39/ecma262/blob/master/CONTRIBUTING.md#new-feature-proposals
-
Isiah
Generalize this far enough, and you wind up with something not far
from this: https://github.com/tc39/proposal-partial-application
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Wed, Jun 26, 2019 at 5:44 AM Michael Luder-Rosefield
wrote:
>
> The more I read this pr
) are planning to adapt it, I feel
it might be worth waiting for this stage-0 proposal to make it in in
some form or another first, *then* pushing for language-level support
of parallelism: https://github.com/rricard/proposal-const-value-types/
-
Isiah Meadows
cont...@isiahmeadows.com
almost exclusively just quality-of-life
improvements to developers, but it's not specific to IDEs or even
static tooling.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Mon, Jun 17, 2019 at 8:28 PM guest271314 wrote:
>
>
> > You have ignored the context from Jo
), and only after falling back to the global
scope would the value fall back to a dynamic lookup and test.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Sun, Jun 16, 2019 at 8:15 PM guest271314 wrote:
>
> > - If `y` is directly visible in scope and is neither a
- If `y` is entirely undeclared, it should be a runtime
`ReferenceError` in the same way it is when accessing undefined
globals. So in your second example, I'd expect it to throw before even
attempting assignment
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Sun, Jun 16, 2019 at
>
>
>
> What if user already has `nameof` function.
>
> 1. To maintain status quo we can user `nameof` function having priority
> over newly introduced language feature.
>
> 2. OR we can use `typeof` syntax, e.g. `nameof msg.userName` (// returns
> "userName&q
need to
have reference types or mixed types as keys.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Thu, Jun 6, 2019 at 2:22 PM kai zhu wrote:
>
> -1 for maintainability and debuggability
>
> 1. maintainability
> if you want to extend the function with
}}
```
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Tue, May 28, 2019 at 3:13 PM Григорий Карелин wrote:
>
> Here are another examples, where "destructuring picking" I suggest whould be
> helpful.
> ==1A Now (redux related)
> ```
> function mapStateToProps
ond) foo()`.
`new RegExp(multilineString)` *is* a valid fallback, something I
already use today quite a bit, but I'd prefer to use one or the other
consistently for static regexps.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Tue, Jun 4, 2019 at 12:36 AM kai zhu wrot
Let me clarify that previous message: I mean "newline restriction" in
the sense that newlines are not permitted in regexp literals. A `/x`
flag would make removing it practically required for it to have any
utility.
-----
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On
I would personally love this (as well as interpolations in regexp
literals). I do have a concern about whether removing the newline
restriction creates ambiguities with division, but I suspect this is
*not* the case.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Mon, Jun
is itself enough to get in the way of things.)
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Fri, May 31, 2019 at 1:40 PM kai zhu wrote:
>
> > Oh, and yes, I've loaded upwards of 50-100 modules in development. 20
> modules is *easy* to achieve in sing
If it's bundled by Rollup or Webpack into a single bundle, it's
equivalent to a single
to cache the request,
not the result), but it's otherwise the same from 1km away.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Thu, May 23, 2019 at 10:49 AM kai zhu wrote:
>
> actually, i admit i don't know what i'm talking about. just generally
> confused (through
You'd have better luck asking for this feature in
https://discourse.wicg.io. ES Discuss is about the JS language itself
and the related ECMAScript spec, not the Web APIs that are implemented
in most browsers, usually separately to the JS implementations
themselves.
-
Isiah Meadows
cont
My bad. I should've known that. :-)
(I've looked *way* too deeply into the React/Redux ecosystem to have
any sort of excuse on this one.)
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Wed, May 15, 2019 at 11:39 PM Jordan Harband wrote:
>
> (that's not react's c
ultiplication` and `addition`.
>
> Thank you,
> ___
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>
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Isiah Meadows
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www.isiahmeadows.com
_
in a (for better or worse)
> JSON-centric
> world.
>
> —— Sandy
>
> ___
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> es-discuss@mozilla.org
> https://mail.mozilla.org/listinfo/es-discuss
> ___
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> e
th"' as non-existent
> ```
>
>
> —Claude
> _______
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> es-discuss@mozilla.org
> https://mail.mozilla.org/listinfo/es-discuss
>
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gt;> Those two examples seem to give to the `in` operator a meaning that it
>> was not intended to have. The `in` operator is specifically meant to check
>> whether a given property exists in a given object.
>>
>> Also, there already exists a way to customise the behavio
} catch {
return false
}
}
}
var object = Object.freeze({foo: true})
new B(object)
console.log(B.isB(object)) // logs `true`
```
This may seem very odd, but it's consistent with the concept of
private fields being sugar for weak maps.
-
Isiah Meadows
cont
e optional,
but the HTML spec should require hosts to implement most modules
within it.
I've filed
https://github.com/tc39/proposal-javascript-standard-library/issues/47
to elaborate on this further.
-----
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Thu, Apr 4, 2019 at 9:18 PM L
Filed https://github.com/tc39/ecma262/issues/1497 to track this.
Sounds to me like a spec bug.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Mon, Apr 1, 2019 at 7:00 AM Simo Costa wrote:
>
> Cur
UX workflows aren't all of JS. Classes exist for many more reasons than
that, and 99% of my classes are for abstracting non-trivial business logic
and ensuring *those* are easily testable, not directly UI/UX.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Sun, Mar 17
ith native private
> fields, that's impossible.
>
> On Tue, Mar 12, 2019 at 10:39 AM Isiah Meadows
> wrote:
>
>> @Ranando Minor nit: class fields can be purely implemented in terms of
>> `defineProperty` (for public) and weak maps (for private - what's used
>
lementation, may be having instance method/property
>> references on the objects and having static method/property references on
>> the prototype is the solution?
>>
>> On Tue, Mar 12, 2019 at 8:14 AM Isiah Meadows
>> wrote:
>>
>>> I've done a little engine w
isting code or bring
> dubious-to-no benefit.
>
> On Tue, Mar 12, 2019 at 3:06 AM john larson
> wrote:
>
>> So in terms of implementation, may be having instance method/property
>> references on the objects and having static method/property references on
>> the p
Not a huge fan. This explicit encapsulation break could be done via an
explicit bootstrapper that can send values across realms, and scenarios on
the same realm can just use global state. Also, the utility seems a bit low
IMHO.
On Tue, Mar 12, 2019 at 00:39 Sultan wrote:
> The following is
I've done a little engine work, and inline caches work by inline type maps
based on the callee site. This *can* be used to reconstruct values +
receivers, but only when the value is constant. It is not sufficient to
ensure identity remains the same, and engines would still need a weak map
to link
JS numbers are specified to be in terms of IEEE-754 doubles, so tenths,
hundredths, and so on cannot be precisely represented. [1] So there is no
way to increase precision here beyond the above that Tab showed, assuming
each of those operations are accurate to the bit.
[1]:
g `[...num]`. "Array to number"
is just `+[...values]`, which evaluates to
`Number(String([...values]))`.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Thu, Mar 7, 2019 at 7:29 PM guest271314 wrote:
>>
>> @guest When making a language proposal, th
/"gimme teh codez" question. [2]
[1]: https://oeis.org/A217626
[2]: https://stackoverflow.com/q/54433007/2693146
-----
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Thu, Mar 7, 2019 at 6:28 PM Bob Myers wrote:
>
> There is already a very well thought out list
to
dispute it - they could just as easily ignore it and your proposal
won't have a chance to be merged into the spec. You have to be the one
to explain why it should be added.
-----
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Thu, Mar 7, 2019 at 7:09 PM guest271314 wrote:
>
is hard.
[1]: https://www.iana.org/time-zones
[2]: https://github.com/eggert/tz
[3]: https://en.wikipedia.org/wiki/Calendar_date
[4]: https://en.wikipedia.org/wiki/Gregorian_calendar
[5]: https://en.wikipedia.org/wiki/Leap_second
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
ispatch
still was listed as slower than switch/case across the board and
roughly equal to dynamic string property dispatch.
One last thing: could you *please* quit arguing semantics?
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Sat, Mar 2, 2019 at 4:57 PM Naveen
r
a little benchmark.
And also, engines *won't* be able to optimize them generally, because
there could be infinitely many type maps, and after about 200 or so
types, the `switch` statement ends up *much* slower.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Sat, Mar 2, 20
me a single method receiver, i.e. when it
*has* to fall back to dynamic dispatch.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Fri, Mar 1, 2019 at 6:25 AM Naveen Chawla wrote:
>
> The entire renderers, cameras, meshes etc. hierarchy uses method inheritance
> an
Personally, I find this a *bad* idea. Top-level `await` in modules
would solve this problem far more quickly and efficiently.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Fri, Mar 1, 2019 at 3:35 PM Ben Wiley wrote:
>
> Has anyone seen anything like this done in a
* to be inherited to work.)
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Thu, Feb 28, 2019 at 12:40 PM Naveen Chawla wrote:
>
> I'm not sure that pattern matching handles deep levels of inheritance more
> elegantly than inheritance itself.
>
> If there is a
That's still something a lot of people *want* to see end up in the
proposal - in fact,
https://github.com/tc39/proposal-pattern-matching/issues/116 was filed
by a TC39 committee member. I wouldn't dismiss the possibility of
pattern matching *expressions* before then.
-
Isiah Meadows
cont...@isia
anyways - it covers more use cases and is all around more
flexible, so I get more bang for the buck.
-
Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Thu, Feb 28, 2019 at 9:23 AM Naveen Chawla wrote:
>
> Hi David!
>
> Your last example would, I think, be better serve
You're not alone in wanting pattern matching to be expression-based:
https://github.com/tc39/proposal-pattern-matching/issues/116
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Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
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Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Tue, Feb 26, 2019 at 1:34
Not sure what the benefit is over just `if (value != null) throw value`,
especially for this niche of a use case.
On Sun, Feb 24, 2019 at 09:46 IdkGoodName Vilius <
viliuskubilius...@gmail.com> wrote:
> I am proposing a syntatic sugar, which would check if throw value is not
> null, or not
It's being considered, just indirectly through a more powerful feature:
https://github.com/tc39/proposal-pattern-matching
On Fri, Feb 15, 2019 at 23:02 Juan Pablo Garcia wrote:
> I think it would be great if the switch statement allows multiple argument
>
> Example
> Switch(a,b)
> Case: 1,true
>
>
> Or are JS engines actually doing this fast (like returning "virtual"
> keys list for which they can tell .length fast and only actually reify
> the keys themselves lazily)?
>
> Herby
>
> > On Wed, Feb 13, 2019 at 10:31 PM Isiah Meadows > <mailto:i
I meant `true` for those - I had my conditions flipped. My bad.
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Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Thu, Feb 14, 2019 at 8:55 AM Andrea Giammarchi
wrote:
>
> > 1. If `value` is either `null` or `undefined`, it gracefully falls back to
> >
`, this is the slow path, but you can still
short-circuit when `ownKeys` returns an empty array.
-
Isiah Meadows
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I presume you've *never* written non-trivial server-side logic in
Node. I find myself using classes *far* more often in Node than in the
browser simply because it's more than just passing strings and object
bags around. You've got caching, process management, and even
sometimes task queues. The
than they would've gotten from an explicit `if
(new.target === Subclass) this.init()` call at the end (which is
basically what I want mod the exposed method).
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Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Sat, Feb 9, 2019 at 4:53 PM Jordan Harband wrote
and right.
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Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Fri, Feb 8, 2019 at 1:22 AM #!/JoePea wrote:
>
> I many times find myself in cases where a base class wants to ensure that
> logic is always fired after the current method's execution, so that for
> examp
provide two separate entry points in
the form of `Symbol.iterator` vs `Symbol.asyncIterator` methods.
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Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Mon, Feb 4, 2019 at 1:43 AM Jordan Harband wrote:
>
> Typically, APIs that are sometimes sync and sometimes async are
ter strings are another big exception.
The reason I called mine `delete` instead of `remove` is to align with
`Set.prototype.delete` and `Map.prototype.delete`, which operate
similarly.
[1]:
https://github.com/isiahmeadows/es-stdlib-proposals/blob/master/proposals/array/delete.md
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Isiah Mead
You could move the async part into a helper function and call that from a
sync function you instead expose. I've used this trick more than once, and
although it is a bit of boilerplate, it works well enough.
On Sun, Feb 3, 2019 at 18:40 #!/JoePea wrote:
> I often find myself enjoying async
Nit: you may need to reset the function's prototype. Also, `create` should
probably be static. ;-)
On Mon, Jan 28, 2019 at 01:46 Ranando King wrote:
> Jordan's right. This one is best handled by a function. But if there is
> some reason you need to create callable objects, it's still doable,
For all here interested, you might want to follow this Twitter
conversation I started. My theory is a subtle spec bug that copied the
number instead of recalculating the formula.
https://twitter.com/isiahmeadows1/status/108851744948878
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Isiah Meadows
cont...@isiahmeadows.com
I feel this is probably best asked at https://github.com/tc39/ecma402,
since it seems to imply a potential spec bug.
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Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Sun, Jan 20, 2019 at 2:31 PM Anders Rundgren <
anders.rundgren@gmail.com> wrote:
> On 2019-01
I'd say the best way is to just file an issue.
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Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Sun, Jan 20, 2019 at 3:59 AM Sm In wrote:
> Thank you for answer, I've checked thart proposal before.
> As I know, proposal-pattern-matching contains guards(which c
thing, I'd like it to be on the
String prototype rather than the RegExp prototype, as in
`str.count(/\n/)`.
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Isiah Meadows
cont...@isiahmeadows.com
www.isiahmeadows.com
On Sun, Jan 20, 2019 at 12:33 AM kai zhu wrote:
>
> benchmarked @isiah’s while-loop test-case vs str.split vs str.r
.
-
Isiah Meadows
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Yeah, I agree. I'd suggest overloading `==`, but that'd risk serious web
compat issues, especially if `null`/`undefined` aren't special-cased. I
feel an `equals` instance method added to all builtins and an
`Object.equals` attempting that method first before performing a shallow
object comparison
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