Hi,<br>What is right way to do conditional IO?<br>For example, I need to write to file errors only in case they exist, otherwise my function should do nothing:<br><br>handleParseErrors errors <br> | (not . null) errors = writeFile "parse-errors.txt" (show errors)<br>
| otherwise = ?<br><br>What should be an 'otherwise' case ?<br> <br>Thanks!<br>