stream.onerror

• 类型：<Function> | <undefined>

在流因错误而被销毁时可选调用的回调函数。这包括用户回调抛出或拒绝引起的错误（见 回调错误处理）。回调函数接收一个参数：触发销毁的错误。如果 onerror 回调本身抛出错误或返回一个被拒绝的 Promise，该错误将作为未捕获异常显现。读/写。

🌐 An optional callback invoked when the stream is destroyed with an error. This includes errors caused by user callbacks that throw or reject (see Callback error handling). The callback receives a single argument: the error that triggered the destruction. If the onerror callback itself throws or returns a promise that rejects, the error is surfaced as an uncaught exception. Read/write.