readable.pause()


使流动模式的流停止触发 'data' 事件,并切换出流动模式。 任何可用的数据都会保留在内部缓存中。

const readable = getReadableStreamSomehow();
readable.on('data', (chunk) => {
  console.log(`接收到 ${chunk.length} 字节的数据`);
  readable.pause();
  console.log('暂停一秒');
  setTimeout(() => {
    console.log('数据重新开始流动');
    readable.resume();
  }, 1000);
});

如果存在 'readable' 事件监听器,则该方法不起作用。

The readable.pause() method will cause a stream in flowing mode to stop emitting 'data' events, switching out of flowing mode. Any data that becomes available will remain in the internal buffer.

const readable = getReadableStreamSomehow();
readable.on('data', (chunk) => {
  console.log(`Received ${chunk.length} bytes of data.`);
  readable.pause();
  console.log('There will be no additional data for 1 second.');
  setTimeout(() => {
    console.log('Now data will start flowing again.');
    readable.resume();
  }, 1000);
});

The readable.pause() method has no effect if there is a 'readable' event listener.