JS Practice — Built-in Objects

String.prototype.charAt() — last character

📖 Usage Example

const str = 'Hello'
str.charAt(0)    // → 'H'
str.charAt(1)    // → 'e'
str.charAt(99)   // → ''

Use charAt() to get the character at a specific index, returning an empty string for out-of-bounds positions.

String.prototype.charAt() — Last Character

Use str.length - 1 to get the last character index.

Challenge: Implement lastCharAt(str) using .charAt(str.length - 1).

lastCharAt('hello') // → 'o'
lastCharAt('abc')   // → 'c'

💡 Hints (1)