static/class properties
Andrea Giammarchi
andrea.giammarchi at gmail.com
Thu Sep 19 10:14:58 PDT 2013
I cannot remember if that has been considered historically a Java or PHP
error/ambiguity ... I'd rather not repeat that in ES6.
A Class constant should have nothing to do with instances but instances can
have properties that returns that class constant, if needed.
We've got new syntax here so I say this is the easier to
read/write/understand ... no need a big chapter explaining what's going on
^_^
```javascript
class A {
static A.VALUE = 10;
}
```
or ...
```javascript
class A {
static {
VALUE = 10;
}
}
```
as in [redefine.js](https://github.com/WebReflection/redefine#classes)
Both will desugar in
```javascript
function A(){}
Object.defineProperty(A, 'VALUE', {value: 10});
```
leaving the prototype alone with its own different world problems.
My 2 cents
On Thu, Sep 19, 2013 at 7:23 AM, Boris Zbarsky <bzbarsky at mit.edu> wrote:
> On 9/19/13 9:30 AM, Rick Waldron wrote:
>
>> class A {
>> const VALUE = 10;
>> }
>>
>> A decision would have to be made for "const VALUE = 10" here: does it
>> mean mean `A.VALUE` and not `var a = new A(); a.VALUE;`?
>>
>
> The current web platform (and hence WebIDL) answer is "both". So both
> XMLHttpRequest.UNSENT and XMLHttpRequest.prototype.**UNSENT exist and
> have the same value.
>
> -Boris
>
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