JavaScript method to detect mouse movement direction

This article describes the method of JavaScript to detect the direction of mouse movement. Share it for your reference. The specific implementation method is as follows:

function Start() {
  (MouseEvent.MOUSE_MOVE, CheckDirection);
}
Start();
var prevX=0;
var prevY=0;
var curX=0;
var curY=0;
 
var dirX:String="";
var dirY:String="";
function CheckDirection(e:MouseEvent) {
  trace("X movement: " + GetHorizontalDirection() + ", Y movement: " + GetVerticalDirection());
  ();
}
function GetHorizontalDirection():String {
  prevX=curX;
  curX=;
  if (prevX>curX) {
    dirX="left";
  } else if (prevX < curX) {
    dirX="right";
  } else {
    dirX="none";
  }
  return dirX;
}
function GetVerticalDirection():String {
  prevY=curY;
  curY=;
  if (prevY>curY) {
    dirY="up";
  } else if (prevY < curY) {
    dirY="down";
  } else {
    dirY="none";
  }
  return dirY;
}

I hope this article will be helpful to everyone's JavaScript programming.