How to solve variables case sensitive

Tell us what’s happening:

followed the instructions but doesn’t work.

Your code so far


// Declarations
var StudlyCapVaR;
var properCamelCase;
var titleCaseOver;

// Assignments
studlyCapVar = 10;
properCamelCase = "A String";
titleCaseOver = 9000;

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Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-javascript/understanding-case-sensitivity-in-variables

The first variable does not match.