Hi,
I'm sorry to say this, but I won't be able to take up the talk in this meet. Work has been keeping me super busy, and I don't see that getting better for the upcoming week or two, and I won't be able to get time to research enough for the talk. There's no point in giving a half-baked not-so-informed talk, especially when it has been titled "Advanced Javascript".
Depending on if the stage is open for October, I could take it up then? Really sorry for any inconvenience caused.