why it didn't work

Tell us what’s happening:
Describe your issue in detail here.

   **Your code so far**

// Variable declarations
var StUdLyCapVaR;
var properCamelCase;
var TitleCaseOver;

// Variable assignments
STUDLYCAPVAR = 10;
PRoperCAmelCAse = "A String";
tITLEcASEoVER = 9000;

var STUDLYCAPVAR;
STUDLYCAPVAR= 10;
var  PRoperCAmelCAse ;
 PRoperCAmelCAse = "A String";



var tITLEcASEoVER = 9000;

var studlyCapVar ;
studlyCapVar = 10;

var titleCaseOver;
titleCaseOver = 9000;
var properCamelCase;
properCamelCase = '  string A String';



   **Your browser information:**

User Agent is: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36

Challenge: Understanding Case Sensitivity in Variables

Link to the challenge:

Modify the existing declarations and assignments so their names use camelCase.

Do not create any new variables.

You haven’t modified the names of the existing declarations and have instead created of new variables.