JS Built-ins
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SymbolhasInstancebeginner

Symbol.hasInstance — typeof is symbol

📖 Usage Example
typeof Symbol.hasInstance   // → 'symbol'

Symbol.hasInstance is a well-known symbol that customises the instanceof operator.

Symbol.hasInstance

Symbol.hasInstance is a well-known symbol used to customise the instanceof operator behaviour.

Challenge: Verify its type.

💡 Hints (1)
  • • Symbol.hasInstance is a well-known symbol on the Symbol constructor.