napi has property

napi_status napi_has_property(napi_env env,
                              napi_value object,
                              napi_value key,
                              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 property whose existence to check.
• [out] result: Whether the 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 property.