Yes, it's fine to concatenate/bundle dependencies like jQuery in with your own JS files. Just make sure they are concatenated in the same order as you are loading them separately.
By the way if you're just getting into web performance stuff, I recommend using a tool like Lighthouse or Calibre, rather than jumping straight to a single technique. Concatenation is just one part of the puzzle :)
Ben Buchanan (200ok)
I make some bits of the web.
Yes, it's fine to concatenate/bundle dependencies like jQuery in with your own JS files. Just make sure they are concatenated in the same order as you are loading them separately.
By the way if you're just getting into web performance stuff, I recommend using a tool like Lighthouse or Calibre, rather than jumping straight to a single technique. Concatenation is just one part of the puzzle :)