Check for null object
10581
Avoiding NullPointerException in Java
79162
Javascript null or empty string does not work
158391
Most efficient way to check for DBNull and then assign to a variable?
2146
object==null or null==object?
151469
What is the difference between null and System.DBNull.Value?
72088
Why shouldn't we allow NULLs?
138823
Why cast null to Object?
15097
Is there any difference between IS NULL and =NULL
114378
How to check if the string is empty?
42958
Method Overloading for null argument
38780
Checking for null before ToString()
155283
Best way to check if object exists in Entity Framework?
142937
Cast object to decimal? (nullable decimal)
19902
Shortcut for "null if object is null, or object.member if object is not null"
41898
Nullable integer in .NET
128709
Why is there a `null` value in JavaScript?
27606
Detecting an undefined object property