Unity null check

If you have implemented layering in your project, good place to do null checks are the layers that receives data externally .

Generally speaking, returning null from a method should be considered really bad . This forces the user of the method to do null checks and create conditional code paths.

“Missing Null Check” IS the coding error a NullPointerException is the vulnerability leading to DOS. And pointer dereference isn’t a vulnerability… everytime you use a * in C you are dereference a pointer.

It is a good idea to check for null explicitly because: You can catch the error earlier. You can provide a more descriptive error message.

How to Test for NULL Values? It is not possible to test for NULL values with comparison operators, such as =, <, or <>. We will have to use the IS NULL and IS NOT NULL operators instead.

In C or C++, there is no special method for comparing NULL values. We can use if statements to check whether a variable is null or not .