$null check in velocity

Question

I came to know about null check using $null in velocity 1.6 through a resource updated by you. Resource: Reading model objects mapped in Velocity Templates But I am facing so many challenges that there is no $null for null check in velocity as there is no documentation provided about this. Please provide me with documentation stating $null as valid for null check in velocity.

Thanks in Advance lucky

Answer 1

To check if a variable is not null simply use #if ($variable)

 #if ($variable)   ... do stuff here if the variable is not null #end 

If you need to do stuff if the variable is null simply negate the test

 #if (!$variable)  ... do stuff here if the variable is null #end