Javascript isNaN and null
93772
Why is isNaN(null) == false in JS?
115423
How to check null objects in jQuery
64884
Why `null >= 0 && null <= 0` but not `null == 0`?
127005
' ... != null' or 'null != ....' best performance?
38780
Checking for null before ToString()
53860
What does 'script /dev/null' do?
90598
PHP considers null is equal to zero
75261
How to tell whether value is NaN without using isNaN, which has false positives?
75212
How to get the first non-null value in Java?
19902
Shortcut for "null if object is null, or object.member if object is not null"
121755
(no) Properties in Java?
5377
Is there a standard function to check for null, undefined, or blank variables in JavaScript?
34821
"None is" or "none are"
49446
How to check for an undefined or null variable in JavaScript?
601
How do I test for an empty JavaScript object?
8878
How to ignore a property in class if null, using json.net
144361
string.IsNullOrEmpty(string) vs. string.IsNullOrWhiteSpace(string)