Set a variable inside a object only if its null
10581
Avoiding NullPointerException in Java
151469
What is the difference between null and System.DBNull.Value?
32065
Attempt to de-reference a null object: Trigger
29684
How to check if an object is nullable?
93772
Why is isNaN(null) == false in JS?
67597
Can constructor return a null object?
65589
How will I be able to remove [NSNull Null] objects from NSMutableArray?
129023
Null check in an enhanced for loop
47228
Use a variable reference "inside" another variable
5377
Is there a standard function to check for null, undefined, or blank variables in JavaScript?
50201
create object using variables for property name
54143
Why is the default value of the string type null instead of an empty string?
83354
Nullable types: better way to check for null or zero in c#
38780
Checking for null before ToString()
134689
Setting an object to null vs Dispose()
69771
NullPointerException when setting attribute?
118788
Setting Zero values back to NULL