existingFolders = existingFolders.filter {
		retailerExists($0) && inRegion($0)
	}
existingFolders.sort { sortByOrderNew($0, $1) } (edited)


// dezelde code:
existingFolders = existingFolders.filter {
		retailerExists($0) && inRegion($0)
	}.sorted(by: {
 		sortByOrderNew($0, $1)
	})