napi_has_named_property

napi_status napi_has_named_property(napi_env env,
                                    napi_value object,
                                    const char* utf8Name,
                                    bool* result); 拷贝

• [in] env：调用 Node-API 调用的环境。

  ¥[in] env: The environment that the Node-API call is invoked under.

• [in] object：要查询的对象。

  ¥[in] object: The object to query.

• [in] utf8Name：要检查其存在的属性的名称。

  ¥[in] utf8Name: The name of the property whose existence to check.

• [out] result：该属性是否存在于对象上。

  ¥[out] result: Whether the property exists on the object or not.

如果 API 成功，则返回 napi_ok。

¥Returns napi_ok if the API succeeded.

此方法等效于使用从作为 utf8Name 传入的字符串创建的 napi_value 调用 napi_has_property。

¥This method is equivalent to calling napi_has_property with a napi_value created from the string passed in as utf8Name.