napi_has_own_property
napi_status napi_has_own_property(napi_env env,
napi_value object,
napi_value key,
bool* result); -
[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] key:要检查其存在的自有属性的名称。¥
[in] key: The name of the own property whose existence to check. -
[out] result:对象上是否存在自己的属性。¥
[out] result: Whether the own 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 API 检查传入的 Object 是否具有命名的自己的属性。key 必须是 string 或 symbol,否则将抛出错误。Node-API 不会执行任何数据类型之间的转换。
¥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. Node-API will not
perform any conversion between data types.