getElementById and null - why?
12146
Why does jQuery or a DOM method such as getElementById not find the element?
35129
Why does String.valueOf(null) throw a NullPointerException?
98908
Is it good practice to set variables to null when they are no longer needed?
55830
What's the rationale for null terminated strings?
576
How can I check for an empty/undefined/null string in JavaScript?
124158
What is wrong with this getElementsByClassName call in Javascript?
94883
Why does comparing a SQL date variable to null behave in this way?
38780
Checking for null before ToString()
125306
Java DOM getElementByID
49
What is a NullPointerException, and how do I fix it?
641
Which overload will get selected for null in Java?
143243
Is NULL always false?
126341
Avoiding IF ELSE due to variable been NULL
65495
document.getElementById() alternative in jQuery
114349
What is a null-terminated string?
81624
Is returning null bad design?
76735
document.getElementById("someId") Vs. someId