code: public static boolean isMinifiedJSFilename (@Nullable final String sFilename)
    {
      if (StringHelper.hasNoText (sFilename))
        return false;
  
      // Second check for URLs with parameters
      return sFilename.endsWith (CJS.FILE_EXTENSION_MIN_JS) ||
             sFilename.contains (MIN_JS_IN_URL) ||
             sFilename.contains (MIN_JS_IN_URL2);
    }
docs: Check if the passed filename is a minified JS filename. Either it ends with
  ".min.js" or it contains ".min.js?" or ".min.js#" (both for URLs). Please
  note that every minified JS filename is also a "valid" filename in the
  sense of {@link #isJSFilename(String)} but not vice versa!.
  
  @param sFilename
  Filename to check. May be <code>null</code>.
  @return <code>true</code> if it is a valid minified JS filename.