1. napi_status napi_has_own_property(napi_env env,
    2.                                   napi_value object,
    3.                                   napi_value key,
    4.                                   bool* result);
    • [in] env: The environment that the N-API call is invoked under.
    • [in] object: The object to query.
    • [in] key: The name of the own property whose existence to check.
    • [out] result: Whether the own property exists on the object or not.

    Returns napi_ok if the API succeeded.

    This API checks if the Object passed in has the named own property. key must be a string or a Symbol, or an error will be thrown. N-API will not perform any conversion between data types.