destroy(asyncId)

• asyncId <number>

在与 asyncId 对应的资源被销毁后调用。它也会异步地从嵌入器 API emitDestroy() 调用。

【Called after the resource corresponding to asyncId is destroyed. It is also called asynchronously from the embedder API emitDestroy().】

有些资源依赖垃圾回收来进行清理，因此如果对传递给 init 的 resource 对象进行了引用，destroy 可能永远不会被调用，从而导致应用的内存泄漏。如果该资源不依赖垃圾回收，那么这就不会成为问题。

【Some resources depend on garbage collection for cleanup, so if a reference is made to the resource object passed to init it is possible that destroy will never be called, causing a memory leak in the application. If the resource does not depend on garbage collection, then this will not be an issue.】

使用 destroy 钩子会导致额外的开销，因为它使垃圾回收器能够追踪 Promise 实例。

【Using the destroy hook results in additional overhead because it enables tracking of Promise instances via the garbage collector.】