readline.clearScreenDown(stream[, callback])


  • stream <stream.Writable>
  • callback <Function> 操作完成后调用。
  • 返回: <boolean> 如果 stream 希望调用的代码在继续写入附加的数据之前等待 'drain' 事件触发,则为 false,否则为 true

readline.clearScreenDown() 方法从光标的当前位置向下清除给定的 TTY 流。

  • stream <stream.Writable>
  • callback <Function> Invoked once the operation completes.
  • Returns: <boolean> false if stream wishes for the calling code to wait for the 'drain' event to be emitted before continuing to write additional data; otherwise true.

The readline.clearScreenDown() method clears the given TTY stream from the current position of the cursor down.