scroll.direction < string>

Current scrolling direction. Returns "up", "down", "left", or "right". The scrolling direction is the inverse of the direction of the drag action: when dragging downwards, you're effectively scrolling upwards. (Read-only)
译：当前滚动方向。上，下，左，或右。滚动方向是拖动操作方向的逆：当拖动向下时，可以有效地向上滚动。（只读）

scroll = new ScrollComponent

# On scroll, print the direction 
scroll.on Events.Scroll, ->
    print scroll.direction