Do search bots execute javascript?

Question

JavaScript

Can search bots execute javascript?
What javascript robots can't execute?
Do search engines index content loaded on a page using AJAX?
PS Seoshnikov gave the task to hide some content from search engines, noindex and rel='nofollow' do not suit them (they say search engines also take them into account), so I decided to create content using scripts.

Answer 1

In words, yes. In fact - no. I checked.
Maybe some high-ranking sites are visited by special robots that can do js, ​​but the standard googlebot can't even jQuery.load()
I solved the problem using prerender.io and escaped fragment .

Answer 2

Yes, but in a rather primitive way, so it's better to think not.

Answer 3

Can search bots execute javascript?
What javascript robots can't execute?

It is definitely impossible to say that the search engine sees this script like this, and the other like this.
You can check for yourself how Google recognizes the action of scripts using the " View as Googlebot " function. Of course, scripts must be open for scanning.
Do search engines index content loaded on a page using AJAX?
Sites using AJAX AJAX
crawling. Developer Guide and...