When you create a class with that syntax, it's not a global variable.
it's like a "let" declaration - it's only available within the scope it's
declared.
i.e. you can't create it from C++.
You can do a var SomeName = class.... if you want, though, to give it a
name. but it doesn't have a traditional constructor to call, either, if I
recall.
On Wednesday, May 17, 2017 at 2:40:38 PM UTC-7, Dan Goldstein wrote:
>
> Hi friends,
>
> I'm somewhat of a V8 novice and could use some help. I have a
> JavaScript class, such as:
>
> class Animal
> {
> constructor(numLegs)
> {
> this.numLegs = numLegs;
> }
> }
>
> Now, to create an instance of this class, I can easily run some
> JavaScript code, such as "var puppy = new Animal(4);" However, I'd like to
> know how to create an instance of Animal and run its constructor from
> within C++, without running a script.
>
> I've actually been able to accomplish this by calling object->Get() and
> passing in 'constructor' as the name of the function to retrieve. Then I
> can call CallAsConstructor() and pass in arguments, and it does work.
> However, this is cumbersome, and the object I've created doesn't have a
> name -- e.g. there's no variable called puppy that I can reference in later
> JavaScript code.
>
> My question is, is there a more elegant way to do this? Or is this
> pretty much the right way to construct a JavaScript object from within C++?
>
> Thanks!
> Dan
>
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