View fitler for empty

Hey.

I’m looking for help to setup the following view filter for tasks that meet the following criteria:

  • startDate is empty OR startDate before now
  • dueDate is before today

Here’s what I imagine it looks like below but I’ve failed to work out the syntax for field is blank.

(startDate = ‘’ || startDate <= now/d) || dueDate <= now/d)

Filtering for empty values is currently not supported, but will be added eventually.