Code checking for a global boolean returns an unnasigned variable error
1462
UnboundLocalError on local variable when reassigned after first use
137993
Scripting:How to correctly add a boolean modifer to an object?
113905
How can I check whether a variable is defined in JavaScript?
105946
How do I do a clean boolean?
115412
Why does this function fail when a non-function version of the same code works?
125535
How do I fix this "identifier is not declared in the current scope" error?
112198
Global Variables vs. Local Variables
141294
Does "if ([bool] == true)" require one more step than "if ([bool])"?
27627
Confusion with the assignment operation inside a falsy `if` block
39781
Why does the is operator return false when given null?
147916
C# error: Use of unassigned local variable
44960
Are global variables bad?
94841
How can I compare a dynamic variable with a literal in Mathematica?
33772
Is there any difference in equals and == for String variables?
152174
How to declare a global variable in php?
23856
Evaluating an If condition to yield True/False
38241
How do I check for nulls in an '==' operator overload without infinite recursion?