JS Practice — Built-in Objects

String.prototype.toString() — String object vs primitive

📖 Usage Example

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

Use toString() to return the primitive string value of a string or String object.

String.prototype.toString() — String Object

A String object created with new String("hello") is not strictly equal to the primitive "hello", but .toString() returns the primitive value.

Challenge: Implement getPrimitive(strObj) that extracts the primitive string from a String object.

getPrimitive(new String('hello')) // → 'hello'

💡 Hints (2)