Hello.
Please tell me does google decrypt encrypted code with javascript ?

Depends on how it is "encrypted"

Also not sure what "encrypted" is supposed to mean, but they do sometimes read the DOM to see what content is being added. Only in limited cases though, and it's a relatively new thing, so it's hard to say when they're doing it.

Do a test. Encrypt a link to a page that has no other links. If it shows up in Google's index, they decrypt. If not, there's a good chance they don't.

Thank you. I will try.