Formatting a column when a date column is blank

This example populates the text content and applies different classes to the Status field depending on the value inside an item's DueDate field. This example applies formatting to one field by looking at the value inside another field. Note that DueDate is referenced using the `[$FieldName]` syntax. FieldName is assumed to be the internal name of the field. This example also takes advantage of a special value that can be used in date/time fields - `@now`, which resolves to the current date/time, evaluated when the user loads the list view.