What's the difference between a == null and a === null?
665
Which equals operator (== vs ===) should be used in JavaScript comparisons?
109876
In the msdn guidance on Equals override, why the cast to object in the null check?
99447
What is the difference between String? and String! (two ways of creating an optional variable)?
32886
What is the difference between != and =! in Java?
138823
Why cast null to Object?
39781
Why does the is operator return false when given null?
47676
What does "var FOO = FOO || {}" (assign a variable or an empty object to that variable) mean in Javascript?
152780
what is the difference between null != object and object!=null
158810
Why does >= return false when == returns true for null values?
94883
Why does comparing a SQL date variable to null behave in this way?
72088
Why shouldn't we allow NULLs?
124471
Comparing nullable column values using "IS NULL" versus "= NULL"
143243
Is NULL always false?
33772
Is there any difference in equals and == for String variables?
94973
Why type "int" is never equal to 'null'?
106
What is a void pointer and what is a null pointer?
114349
What is a null-terminated string?