JS Practice — Built-in Objects

toString of Empty Array

📖 Usage Example

const arr = []
arr.toString()  // → ''  (empty string)

toString() on an empty array returns an empty string.

Array.prototype.toString — Empty Array

Calling toString on an empty array returns an empty string ''. This is consistent with [].join(',') also returning ''.

Implement emptyToString which returns the result of calling toString() on an empty number array.

💡 Hints (2)