鼠标事件（The MouseEvent interface represents events that occur due to the user interacting with a pointing device (such as a mouse).）

MouseEvent 包括

  • click
  • dblclick
  • mouseup
  • mousedown

MouseEvent derives from UIEvent
UIEvent derives from Event

一些具体的事件都派生自 MouseEvent：WheelEvent 和DragEvent。

Properties
This interface also inherits properties of its parents, UIEvent and Event.

其中：

  • MouseEvent.clientX Read only
    The X coordinate of the mouse pointer in local (DOM content) coordinates.
  • MouseEvent.clientY Read only
    The Y coordinate of the mouse pointer in local (DOM content) coordinates.
  • MouseEvent.offsetX Read only
    The X coordinate of the mouse pointer relative to the position of the padding edge of the target node.
  • MouseEvent.offsetY Read only
    The Y coordinate of the mouse pointer relative to the position of the padding edge of the target node.
  • MouseEvent.pageX Read only
    The X coordinate of the mouse pointer relative to the whole document.
  • MouseEvent.pageY Read only
    The Y coordinate of the mouse pointer relative to the whole document.
  • MouseEvent.screenX Read only
    The X coordinate of the mouse pointer in global (screen) coordinates.
  • MouseEvent.screenY Read only
    The Y coordinate of the mouse pointer in global (screen) coordinates.