var firstName = "Charles" string by using firstName[firstName.length - 3]
lastName string.
HintthirdToLastLetterOfFirstName variable declaration if you get stuck.
secondToLastLetterOfLastName should be "c".
testString: 'assert(secondToLastLetterOfLastName === "c", "secondToLastLetterOfLastName should be "c".");'
- text: You have to use .length to get the second last letter.
testString: 'assert(code.match(/\.length/g).length === 2, "You have to use .length to get the second last letter.");'
```