Here’s what the viewer asked.
To which John replied.
What wasn’t said but was implied was that most sites rely on JS for their functionality and that it is, in all likelihood, okay to use it. However, Muller still suggested the user to perform a few tests to see if everything is the way it is supposed to be.
Get it Tested
“But you’re much better off not just believing me, but rather using a testing tool to try it out. And the testing tools that we have available are quite well documented. There are lots of …variations on things that we recommend with regards to improving things if you run into problems.
Mueller concluded his answer.
It doesn’t primarily care about user-friendliness. But of course your users care about user-friendliness. And that’s something where maybe it makes sense to do a little bit more so that your users are really for sure having a good experience on your pages.
And this is often something that isn’t just a matter of a simple testing tool. But rather something where maybe you have to do a small user study or kind of interview some users or at least do a survey on your website to understand where do they get stuck, what kind of problems are they facing.
Is it because of these …you mentioned the fly-out menus. Or is it something maybe completely different where they’re seeing problems, that maybe the text is too small, or they can’t click the buttons properly, those kinds of things which don’t really align with technical problems but are more, kind of, user-side things that if you can improve those and if you can make your users happier, they’ll stick around and they’ll come back and they’ll invite more people to visit your website as well.”
While John didn’t mention any particular tool that users can use for double-checking, Google Search Console is the first that comes to mind for being reliable and competent. With the key takeaway being, JS only becomes a problem only if it forces itself upon the site users, hampering their overall user-experience. Otherwise, you are quite good to go, but still get everything tested nevertheless. Watch John Mueller’s full response to question at the 10:23 minute mark and may be also stick around for the rest of the discussion for some other valuable insights.
Source: Search Engine Journal