I used to be very pro object oriented (Java, C#, etc). Saw JS as a hack. Then I tried it and realized that it made my development time shorter. Thing is, it's a programming language and it can be as good or terrible as you want it to be.
Just because I moved to JS, doesn't mean I threw away the best practices I learned earlier. I still take a careful look at node packages I use and try to understand how it works before blindly using it. I've worked with some people who would look up something on npm, then immediately go npm install and go to production. You can do that in Java, too.
Only thing I worry about now is that I don't use Java, C#, etc enough to prove to job recruiters that I'm not rusty.