Function to check Null
124
Is JavaScript a pass-by-reference or pass-by-value language?
150276
Is there a Python equivalent of the C# null-coalescing operator?
126341
Avoiding IF ELSE due to variable been NULL
15435
how to check if $1 and $2 are null?
104501
How do I enforce null checking?
114378
How to check if the string is empty?
93772
Why is isNaN(null) == false in JS?
49446
How to check for an undefined or null variable in JavaScript?
143243
Is NULL always false?
79477
Why is "null" present in C# and Java?
72088
Why shouldn't we allow NULLs?
92446
C#: How to pass null to a function expecting a ref?
158391
Most efficient way to check for DBNull and then assign to a variable?
81624
Is returning null bad design?
65944
Easier way of writing null or empty?
145029
Return a "NULL" object if search result not found
120071
Checking for a null int value from a Java ResultSet