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.