lib/tty.js
function (len) {
    _.isNumber(len) || (len = 1)
    
    while (len--) {
      readline.moveCursor(this.rl.output, -cliWidth(), 0)
      readline.clearLine(this.rl.output, 0)
      if (len) {
        readline.moveCursor(this.rl.output, 0, -1)
      }
    }
    return this
  }
function (len) {
    _.isNumber(len) || (len = 1)
    
    while (len--) {
      readline.moveCursor(this.rl.output, -cliWidth(), 0)
      readline.clearLine(this.rl.output, 0)
      if (len) {
        readline.moveCursor(this.rl.output, 0, -1)
      }
    }
    return this
  }
function ( len ) { _ . isNumber ( len ) || ( len = 1 ) while ( len -- ) { readline . moveCursor ( this . rl . output , - cliWidth ( ) , 0 ) readline . clearLine ( this . rl . output , 0 ) if ( len ) { readline . moveCursor ( this . rl . output , 0 , - 1 ) } } return this }
Remove the line.

@params {number} len Lines to remove.
@returns {Object} Self.
Remove the line .