the problem with your code is that you are creating a litteral string on your case “myFirstName” and not assigning it to nothing. try removing the “” from the third line and everything should work. if you wanted to know the value of the variable myFirstName try to console the value by typing: console.log(myFirstName); on the third line.
hope this helps.
The third line should be deleted (though that is valid [but strange] Javascript and the tests can pass with that line present), but that isn’t the only problem. There are typos in the capitalization of the variables.