Return a value of '1' a referenced cell is empty

Question

In Excel, I need to return a value of 1 if a referenced cell is empty

I can do it if the value is zero but how do I do it if it is empty?

Answer 1

If you've got a cell filled with spaces or blanks, you can use:

=Len(Trim(A2)) = 0

if the cell you were testing was A2