testing the value of a cell

[Zeraia]

Curious what the code should look like to test if a cell
is empty of both numbers and letters.

Trying to setup so that If B1 is empty then this else
this.

 

[Dan E]

=IF(A1="", "A1 is empty", "A1 is not empty")

Dan E

 

[buczacz]

=ISBLANK(A3) where A3 is the cell being tested.

 

[Tom Ogilvy]

If isempty(range("B1")) then
' this
else
' that
End if