JS Practice — Built-in Objects

valueOf() — used implicitly in arithmetic

📖 Usage Example

// Retrieve the primitive numeric value
const n = new Number(42)
n.valueOf()          // → 42
typeof n.valueOf()   // → 'number'

Use valueOf() on a Number object to extract the underlying primitive number value, which JavaScript also calls automatically in numeric expressions.

valueOf() in Arithmetic

When a Number object is used in arithmetic, JavaScript calls valueOf() implicitly.

💡 Hints (1)

• JavaScript implicitly calls `valueOf()` when a `Number` object is used in numeric operations.