A better way to compare Strings which could be null
120566
Compare two objects in Java with possible null values
49446
How to check for an undefined or null variable in JavaScript?
65944
Easier way of writing null or empty?
68713
Why is it Valid to Concatenate Null Strings but not to Call "null.ToString()"?
133857
Comparing nullable DateTime?
148619
Is there a reason not to use  (null safe equals operator) in mysql instead of =?
86344
Compare nullable types in Linq to Sql
62074
Which is more effective: if (null == variable) or if (variable == null)?
126231
How can I manage the onslaught of null checks?
72088
Why shouldn't we allow NULLs?
132398
What is null in Java?
32059
What is \null and when do we need to use it?
120071
Checking for a null int value from a Java ResultSet
63172
Checking a null value in Objective-C that has been returned from a JSON string
55830
What's the rationale for null terminated strings?
17784
Java if ternary operator and Collections.emptyList()
15435
how to check if $1 and $2 are null?