JS Practice — Built-in Objects

String.prototype.valueOf() — empty string valueOf

📖 Usage Example

const str = 'Hello'
str.valueOf()               // → 'Hello'
new String('hi').valueOf()   // → 'hi'

Use valueOf() to return the primitive string value, useful when working with String wrapper objects.

String.prototype.valueOf() — Empty String

Calling valueOf() on an empty string returns an empty string.

Challenge: Implement emptyValueOf() that calls valueOf on an empty string.

emptyValueOf() // → ''

💡 Hints (1)