What solution is preferred? Use VAR / RETURN or just one IF statement

[SandervdM]

Hi,

Trying to figure out which would works best in a measure. Not sure which code to use regarding performance, etc.  To me it seems that the "calculate_something()" needs to be executed twice if the outcome of the first is not blank. Anyone any ideas?

Measure = 

VAR n = calculate_something()

RETURN

IF( ISBLANK( n ), 0, n )

or:

Measure = 

IF( ISBLANK( calculate_something() ), 0, calculate_something() )

Or doesn't it make any difference at all?

Regards,
Sander