var firstName = "Charles", you can get the value of the last letter of the string by using firstName[firstName.length - 1].
Example:
```js
var firstName = "Charles";
var lastLetter = firstName[firstName.length - 1]; // lastLetter is "s"
```
lastName variable.
Hint:  Try looking at the example above if you get stuck.
lastLetterOfLastName should be "e".
    testString: assert(lastLetterOfLastName === "e");
  - text: You should use .length to get the last letter.
    testString: assert(code.match(/\.length/g).length > 0);
```