Function napi_create_external 

pub unsafe extern "C" fn napi_create_external(
    env: napi_env,
    data: *mut c_void,
    finalize_cb: napi_finalize,
    finalize_hint: *mut c_void,
    result: *mut napi_value,
) -> napi_status

Available on crate feature napi only.

Allocates a JS value with external data.

Arguments

• env - Current running virtual machine context.

• data - Allocates a JS value that references external data.

• finalize_cb - Optional callback to call when the external value is being collected.

• finalize_hint - Optional hint that can be passed to the finalize callback function during the garbage collection process.

• result - A napi_value representing an external value.

Returns

• Returns the function execution status. [napi_ok] If the function executed successfully.

[napi_invalid_arg] If the param env or result is nullptr.

[napi_pending_exception] There is an uncaught exception occurred before(in) execution.

Available since API-level: 10