See Stage 3 Logical Assignment Proposal.
https://github.com/tc39/proposal-logical-assignment
Thanks.
2020年4月13日 18:17 +0900、Sultan のメール:
> The following would assign to the address foo in obj if and only if it has
> not already been assigned.
>
> var obj = {}
> var foo = Math.random()
> obj[foo]
see https://github.com/tc39/proposal-intl-segmenter
2019年9月9日 1:25 +0900、Dimitrian Nine のメール:
> Thanks i found same ideas here:
>
> https://esdiscuss.org/topic/string-prototype-symbolat-improved-string-prototype-charat
> https://esdiscuss.org/topic/working-with-grapheme-clusters
>
> But topics was
For understanding the current status, I think that the following documents will
be helpful.
The note and slide for the 66th meeting of Ecma TC39
https://github.com/rwaldron/tc39-notes/blob/master/es9/2018-09/sept-26.md#decorators-stage-2-update
https://docs.google.com/presentation/d/1s9bu_Z0vWR9
Sorry for my hasty reply, the restriction seems to be not related to Algebraic
Effects. But I think that Algebraic Effects specifications is useful for a pure
implementation.
On 2018/11/06 18:44, 森建 wrote:
React Hooks, a new feature of React v16.7.0-alpha, is a hacky implementation,
so there
React Hooks, a new feature of React v16.7.0-alpha, is a hacky implementation,
so there are restrictions that must be called in order.
https://reactjs.org/docs/hooks-rules.html
One of React members says below:
> Finally, if you’re a functional programming purist and feel uneasy about
React rely
/2018.4.23/test.js#L64
kai zhu
kaizhu...@gmail.com <mailto:kaizhu...@gmail.com>
On 12 Sep 2018, at 5:09 AM, 森建 mailto:mori...@kimamass.com>> wrote:
`Array#sort` is stable in Chrome 70.
https://twitter.com/mathias/status/1036626116654637057
All modern browsers (and IE 11) have stable sort
`Array#sort` is stable in Chrome 70.
https://twitter.com/mathias/status/1036626116654637057
All modern browsers (and IE 11) have stable sort with `Array#sort`. Would you like
to mention `Array#sort` must be a stable sort on specification (>=ES2019)?
__
es so far. I've been trying to get some
traction for the feature with implementors but it's being hard to get everyone
positive about this being a native implementation rather than a non-native
custom API.
On Sun, May 27, 2018 at 7:09 PM, 森建 mailto:mori...@kimamass.com>> wrot
Any update of this topic since 2017-09 TC39 meeting?
https://github.com/rwaldron/tc39-notes/blob/637ecb13af98e480cbb0415b9d724365038d4cc0/es8/2017-09/sep-28.md#float16-typed-arrays
The proposal for canvas to use float16 in CanvasPixelFormat is being discussed,
IMHO `ImageData.data` should return
Hi there,
I want to add `Map#assign` to TC39 Stage 1.
ECMAScript `Object` has `Object.assign`.
On the other hand `Map` doesn't have assigning method.
For example, we must write JavaScript like the following:
```js
const mapA = new Map([["foo", 1], ["bar", 2]]);
const mapB = new Map([["baz", 3]
PHP, Ruby, Groovy have spaceship operator `<=>`. In short, this operator
compares values and returns `1`, `-1`, `0`.
ECMAScript spec's `TypedArray#sort` has the default comparison part like
following code, so I think it's useful that appending spaceship operator to
ECMAScript like it.
http://
@Oriol Thanks for your reply!
On 2017/06/18 21:33, Oriol _ wrote:
There is a `String#matchAll` proposal in stage 1.
https://github.com/tc39/String.prototype.matchAll https://github.com/tc39/String.prototype.matchAll>
Oriol
___
es-discuss mailing l
Although It seems that some people agreed with appending
`RegExp#execAll` to EcmaScript 4 years ago, what happened to it after that?
topic:
https://esdiscuss.org/topic/letting-regexp-method-return-something-iterable
implementation: https://www.npmjs.com/package/regexp.execall
I created a float16 package.
https://www.npmjs.com/package/@petamoriken/float16
It exports `Float16Array`, `DataView` methods (`getFloat16`,
`setFloat16`) and hfround like `Math.frond`.
If there is a chance, please appned EcmaScript Stage 0.
___
es-
roxy.map(e => e + 1); // -> Uint8Array [2, 3, 4, 5]
for(const val of proxy) {
console.log(val); // -> 1, 2, 3, 4
}
```
On 2017/04/29 22:27, 森建 wrote:
Hi there!
Proxy of TypedArray doesn't have [[TypedArrayName]] and
[[ViewedArrayBuffer]] slots. so maybe, [22.2.3.5.1
Valida
Hi there!
Proxy of TypedArray doesn't have [[TypedArrayName]] and
[[ViewedArrayBuffer]] slots. so maybe, [22.2.3.5.1
ValidateTypedArray](http://www.ecma-international.org/ecma-262/7.0/#sec-validatetypedarray)
throws TypeError like following code.
```js
const uint8 = new Uint8Array([1, 2,
WebGL 2.0 supports half-precision float (16bit float) by default.
But now, we must use the following dirty hack using `Uint16Array`.
```js
// ref:
http://stackoverflow.com/questions/32633585/how-do-you-convert-to-half-floats-in-javascript
var toHalf = (function() {
var floatView = new Float
IMHO, it should be resolved in `WeakRefs` (Stage 1).
https://github.com/tc39/proposal-weakrefs
2016/08/26 17:19、Michał Wadas のメッセージ:
> For your case I would suggest deterministic scope for objects via promises
> and reference counting across workers. For your case you don't need to really
>
EcmaScript hasn't have the stable sort method yet.
http://www.ecma-international.org/ecma-262/6.0/#sec-array.prototype.sort
Sure, we can create stable sort function by using `Array#sort`,
by returning the number of index (e.g. `arr.indexOf(arguments[0]) -
arr.indexOf(arguments[1])`)
when it is eq
Does anyone help me with being TC39 champion for my personal protected state
strawman?
https://github.com/petamoriken/es-protected-state
On 2016/01/20 1:43, 森建 wrote:
> @Andrea Giammarchi
>
> Thank you for supporting my code, I got JavaScript knowledge a lot!
>
> @Subscribers
:
https://github.com/wycats/javascript-private-state
On Tue, Jan 19, 2016 at 8:43 AM, 森建 mailto:mori...@kimamass.com>> wrote:
@Andrea Giammarchi
Thank you for supporting my code, I got JavaScript knowledge a lot!
@Subscribers
If there is not any problems, would you kindly d
@Andrea Giammarchi
Thank you for supporting my code, I got JavaScript knowledge a lot!
@Subscribers
If there is not any problems, would you kindly discuss about this syntax sugar?
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es-discuss@mozilla.org
https://mail.mozilla
maybe okay.
```js
"use strict";
// utility
function createProtectedStorage() {
const wm = new WeakMap();
return (self, protectedClass) => {
const map = wm.get(self);
if(protectedClass == null) {
if(map) {
return map;
} else {
const ret = Object.create(nu
Sorry, I must use `Object.getOwnPropertySymbols`.
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https://mail.mozilla.org/listinfo/es-discuss
I make it!
```js
"use strict";
// utility
function createProtectedStorage() {
const wm = new WeakMap();
return (self, protectedClass) => {
const map = wm.get(self);
if(protectedClass == null) {
if(map) {
return map;
} else {
const ret = Object.create(nul
Sorry, I misunderstood descriptor and accessor. I try it!!
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https://mail.mozilla.org/listinfo/es-discuss
@Thomas
>Could this be achieved with decorators?
I want to get Syntax Sugar.
But I didn't have an idea using decorators, thank you!
@kdex
>About your nomenclature: Why name it `protected` rather than `private`?
Am I missing a key difference between the two here?
This is not `private` proposal
Dear ES discuss subscribers,
I'm Kenta Moriuchi,
Department of Art and Information Design
Kyushu University in Japan
I propose `Protected State`.
In ES2015:
```js
// utility
function createProtectedStorage() {
const wm = new WeakMap();
return (self, protectedClass) => {
const m
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