Why is there no way to know this?
I meant that there is no way to do it by code in the script itself, like asserting process.version. Those things just don’t available in sandbox process. Furthermore it is sandboxed in a way that only selected functions, global objects and methods are available, so it won’t be complete JS api in any case.
Why doesn’t you own it?
Let’s say we have access to source codes, however it is fairly complicated. We do not have time and resources right now to invest in it in this regard.
We have a fairly decent code completion in our JS editor, so you can see which methods are available. Could you describe what for you need the exact version?