title: How can I have multiple criteria when setting a filter
body: <p>I have the following code to set a filter using Google Apps Script in a Google Sheet. What I really want as the filter is when the date is before today OR equal to today, OR if the cell is empty. How can I set up such OR logics?</p>
  <pre><code>  var newCriteria = SpreadsheetApp.newFilterCriteria()
       .whenDateBefore(SpreadsheetApp.RelativeDate.TODAY)
       .build();  
    dataSheet.getFilter().setColumnFilterCriteria(3, newCriteria);
  </code></pre>