[x3d-public] FreeWRL: I'm not sure what the standard says, but consider enabling ECMAScript's "let" in FreeWRL

[John Carlson]

How about integrating another browser based ECMAScript, Bun, or Deno?

I was kind of surprised by lack of var, the warnings weren’t obvious, but
luckily I had similar code that worked, which was written by you, Doug,
thank goodness!

However, getting the code through X3D-Edit QA is another matter…

I can post if people like.  The code works well, and is PROTO based.

John

On Fri, Sep 15, 2023 at 10:11 AM GPU Group <gpugroup at gmail.com> wrote:

> Most recent duktape doesn't support "let" although some of duktape's
> developers have tinkered with it.
> https://github.com/svaarala/duktape/issues/2000
> Most recent libmozjs / spidermonkey does / should support let:
>
> https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/let
>
> x however freewrl uses an older libmozjs 24, versus most current is over
> 100.
> x last time I tried to build libmozjs on windows I gave up
> -Doug
>
> On Thu, Sep 14, 2023 at 4:56 PM John Carlson <yottzumm at gmail.com> wrote:
>
>> Christoph.
>>
>> 1) These aren't global variables, they are local to a function.
>>
>> 2) let doesn't declare a global variable.
>>
>> 3) global variables are frowned and warned about in X3D.
>>
>> 4) let is much better for scoping than var.
>>
>> John
>>
>> On Thu, Sep 14, 2023 at 5:29 PM Christoph Valentin <
>> christoph.valentin at gmx.at> wrote:
>>
>>> Just fyi......
>>>
>>> When I tried to write browser stiff ecmascript for X3D Script nodes, I
>>> decided to use only var and to use it for local variables.
>>>
>>> I avoided to have global ecmascript variables and used "field"s of the
>>> Script nodes instead.
>>>
>>> I do not remember WHY i did this decision.
>>>
>>> Kr,
>>> CP/V
>>>
>>> --
>>> Diese Nachricht wurde von meinem Android Mobiltelefon mit GMX Mail
>>> gesendet.
>>> Am 14.09.23, 23:01 schrieb John Carlson <yottzumm at gmail.com>:
>>>
>>>> Doug,
>>>>
>>>> Let me know if there's some configuration to enable ECMAScript's "let"
>>>> way of declaring variables in FreeWRL.  Otherwise, I have to use var.
>>>>
>>>> Thanks!
>>>>
>>>> John
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>>>
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