JS Practice — Built-in Objects

Number() vs new Number() — object vs primitive

📖 Usage Example

// Convert a value to a number
Number('42')    // → 42
Number(true)    // → 1
Number(false)   // → 0
Number('')      // → 0

Use the Number() function to explicitly convert a value to a numeric type, which is more predictable than implicit coercion.

Number() vs new Number()

typeof Number(5)      // → 'number'
typeof new Number(5)  // → 'object'

💡 Hints (1)