napi_get_array_length
napi_status napi_get_array_length(napi_env env,
napi_value value,
uint32_t* result)
-
[in] env
:调用 API 的环境。¥
[in] env
: The environment that the API is invoked under. -
[in] value
:napi_value
代表查询长度的 JavaScriptArray
。¥
[in] value
:napi_value
representing the JavaScriptArray
whose length is being queried. -
[out] result
:uint32
代表数组的长度。¥
[out] result
:uint32
representing length of the array.
如果 API 成功,则返回 napi_ok
。
¥Returns napi_ok
if the API succeeded.
此 API 返回数组的长度。
¥This API returns the length of an array.
Array
长度在 ECMAScript 语言规范的 第 22.1.4.1 节 中描述。
¥Array
length is described in Section 22.1.4.1 of the ECMAScript Language
Specification.