wrong output written

[alechash]

If I am wrong, sorry, I am not the best with JS but trying one of these, I got a different output:
https://github.com/denysdovhan/wtfjs?ref=HackerTabExtension#is-this-multiple-inheritance
I got this: F(0) []
Not this: F []

[libook]

I've tested this with Node.js v9,v10,v11,v12,v14.
I've got F [] with v9,v10,v11.
And I've got F(0) [] with v12,v14.

So there must be some changes with Node.js 12 (V8 7.4)

[denysdovhan]

The questions seem to be answered.