Bracket notation
is a way to get a character at a specific index
within a string.
Most modern programming languages, like JavaScript, don't start counting at 1 like humans do. They start at 0. This is referred to as Zero-based indexing.
For example, the character at index 0 in the word "Charles" is "C". So if var firstName = "Charles"
, you can get the value of the first letter of the string by using firstName[0]
.
lastName
variable and assign it to firstLetterOfLastName
.
HintfirstLetterOfFirstName
variable declaration if you get stuck.
firstLetterOfLastName
variable should have the value of L
.
testString: 'assert(firstLetterOfLastName === "L", "The firstLetterOfLastName
variable should have the value of L
.");'
- text: You should use bracket notation.
testString: 'assert(code.match(/firstLetterOfLastName\s*?=\s*?lastName\[.*?\]/), "You should use bracket notation.");'
```