Node.js stream.Writable 'finish'事件用法及代码示例

事件：'finish'

'finish' 事件在调用 stream.end() 方法后发出，并且所有数据都已刷新到底层系统。

const writer = getWritableStreamSomehow();
for (let i = 0; i < 100; i++) {
  writer.write(`hello, #${i}!\n`);
}
writer.on('finish', () => {
  console.log('All writes are now complete.');
});
writer.end('This is the end\n');