IF empty cell = other empty cell return false

Question

I want to make formula like:

IF(A1=B1,true,false)

But when A1 and B1 are empty, I want it to return false.

Only return true when A1 and B1 contain same word or number.

Answer 1

Try,

=IF(AND(NOT(COUNTBLANK(A1:B1)), A1=B1),true,false)

... or more simply as,

=AND(NOT(COUNTBLANK(A1:B1)), A1=B1)

Answer 2

Try the following formula: =AND(A1=B1,NOT(ISBLANK(A1)))