JS Practice — Built-in Objects

Symbol.hasInstance — always a symbol

📖 Usage Example

typeof Symbol.hasInstance          // → 'symbol'
Symbol.hasInstance === Symbol.hasInstance  // → true

Symbol.hasInstance is always type 'symbol' with a stable reference.

Symbol.hasInstance Type Confirmation

Symbol.hasInstance is always a symbol primitive.

Challenge: Confirm the type.

💡 Hints (1)