Node.js stream.Writable 'unpipe'事件用法及代碼示例

事件：'unpipe'

參數

• src <stream.Readable> unpiped 這個可寫的源流

'unpipe' 事件在 Readable 流上調用 stream.unpipe() 方法時發出，從其目標集中刪除此 Writable 。

如果 Writable 流在 Readable 流通過管道進入其中時發出錯誤，也會發出此消息。

const writer = getWritableStreamSomehow();
const reader = getReadableStreamSomehow();
writer.on('unpipe', (src) => {
  console.log('Something has stopped piping into the writer.');
  assert.equal(src, reader);
});
reader.pipe(writer);
reader.unpipe(writer);