JS Practice — Built-in Objects

String.prototype.charAt() — specific position

📖 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() — Any Position

Challenge: Implement charAtPos(str, pos) that wraps .charAt(pos).

charAtPos('JavaScript', 4) // → 'S'

💡 Hints (1)

• `str.charAt(pos)` is the classic way to get a character; `str[pos]` is the modern shorthand.