napi get array length

napi_status napi_get_array_length(napi_env env,
                                  napi_value value,
                                  uint32_t* result)

• [in] env: The environment that the API is invoked under.
• [in] value: napi_value representing the JavaScript Array whose length is being queried.
• [out] result: uint32 representing length of the array.

Returns napi_ok if the API succeeded.

This API returns the length of an array.

Array length is described in [Section 22.1.4.1][] of the ECMAScript Language Specification.