library.refCallback(pointer)

• pointer <bigint>

保持回调在 JavaScript 中被强引用。

🌐 Keeps the callback strongly referenced by JavaScript.

如果回调函数在之前的 library.unrefCallback(pointer) 调用后已经被垃圾回收，会抛出 ERR_INVALID_ARG_VALUE，因为被回收的函数无法再次被引用。

🌐 Throws ERR_INVALID_ARG_VALUE if the callback function has already been garbage collected after a previous library.unrefCallback(pointer) call, since a collected function cannot be referenced again.