Your problem is in variable assignment here you had declared StUdLyCapVar but while assigned value to STUDLYCAPVAR which is not declared in your code which arise problem to the compiler to understand .There is similar problem with other declared variable tooo have a look on them
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Okay let me give you example javascript compiler is language independent. There for ABC,
Abc, abc, aBC,aBc, all are different when we declare them .for compiler these word are totally different but not for human .Hence here in
// Variable declarations
var StUdLyCapVaR;
var properCamelCase;
var TitleCaseOver;
// Variable assignments
STUDLYCAPVAR =10;
PRoperCAmelCAse = “A String”;
tITLEcASEoVER = 9000;
Here there is declared StUdLyCapVaR and you had assigned value to STUDLYCAPVAR . Which is totally different for the compiler when it will read it. Therefore make assignments variable exactly same as declared variable by words if you want your code to work