How do errors in the browser console affect indexing?

Question

Google

Please tell me if search bots take into account errors in the console? I can not find anything on this issue on the site of Yandex or Google.
And if in the console there are 404 errors - the path to the file is not correct? At the same time, the browser sends a request and waits for a response, which takes the time of loading the site. What do you say about this?

Answer 1

No, search bots do not execute JS.

Answer 2

The console itself does not affect the robot in any way, or rather, the console is a means of output / input of information specifically for the browser, it may or may not be present in the browser. It is important to understand errors as an independent phenomenon, not as something related to the console. Search jobs execute javascript, but not all of them are possible, because there are "fast robots", there are others. Most likely, ordinary errors will not affect the PS if they are not responsible for the output of the main content, or do not load the browser. Also in the console there may be errors not related to javascript, such as including CSS files, or prefetch meta tags, or an image loading error, css errors are not as critical as the last two. The second, if it refers to an internal page, and it gives the status 4 ** or 5 **, then this may affect the indexing or position.