You can select by attribute value. Even "starts with" selectors eg:

  document.querySelectorAll('[name^="starts-with-this"]')

or "containing" selectors:

  document.querySelectorAll('[name*="contains-this"]')

I believe querySelector/querySelectorAll supports all native CSS selectors, including attribute selectors. But jQuery does hahve custom selectors as well (at least last I used it, which is over 10 years ago)