HTML DOM MouseEvent pageY Property

HTML Web Development Front End Technology

The HTML DOM MouseEvent pageY property returns the vertical (y) coordinate of the mouse pointer relative to the document if a mouse event was triggered. Use with pageX to get the horizontal coordinate as well.

Following is the syntax −

Returning reference to the pageY object

MouseEventObject.pageY

Let us see an example of MouseEvent pageY property −

Example

Live Demo

<!DOCTYPE html>
<html>
<head>
<title>MouseEvent pageY</title>
<style>
   * {
      padding: 2px;
      margin:5px;
   }
   form {
      width:70%;
      margin: 0 auto;
      text-align: center;
   }
   #outer {
      width:70%;
      margin: 0 auto;
      padding: 0;
      text-align: center;
      border:1px solid black;
      height: 105px;
      background-color: #28a745;
   }
   input[type="button"] {
      border-radius: 10px;
   }
   #upper {
      border-bottom: 1px solid black;
      height: 40px;
      margin: 0 0 15px 0;
      background-color: #DC3545;
   }
   #lower {
      border-top: 1px solid black;
      height: 40px;
      margin: 15px 0 0 0;
      background-color: #DC3545;
   }
</style>
</head>
<body>
   <form>
      <fieldset>
         <legend>MouseEvent-pageY</legend>
         <div id="outer">
         <div id="upper"><h2>Danger</h2></div>
         <div id="lower"><h2>Danger</h2></div>
         </div>
         <input type="button" id="start" value="Start" onclick="gameStart()">
         <div id="divDisplay"></div>
      </fieldset>
   </form>
<script>
   var divDisplay = document.getElementById('divDisplay');
   var gameDisplay = document.getElementById('outer');
   function playGame(event) {
      var x = event.pageX;
      var y = event.pageY;
         if(y > 95 && y < 110){
            divDisplay.textContent = 'Keep Going!';
               if(x === 439){
                  divDisplay.textContent = 'Congrats! You Did it!';
                  gameDisplay.removeEventListener('mousemove', playGame);
               }
         }
         else{
            divDisplay.textContent = 'You moved to DANGER area. You loose!';
            gameDisplay.removeEventListener('mousemove', playGame);
         }
   }
   function gameStart(){
      gameDisplay.addEventListener('mousemove',playGame);
   }
</script>
</body>
</html>