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What is the role of scrollY attribute in JavaScript?

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Release： 2023-08-28 11:45:08
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What is the role of scrollY attribute in JavaScript?

scrollY property is the same as pageYoffset property in JavaScript. If you want to get the pixel value to which the document is scrolled from the upper left corner of the window, use the scrollY property to get the vertical pixels.

Example

You can try running the following code to understand how to use the scrollY attribute in JavaScript. 

<!DOCTYPE html>
<html>
   <head>
      <style>
         div {
            background-color: yellow;
            height: 1500px;
            width: 1500px;
         }
      </style>
   </head>

   <body>
      <script>
         function scrollFunc() {
            window.scrollBy(200, 200);
            alert("Vertical: " + window.scrollY);
         }
      </script>
      <button onclick="scrollFunc()" style="position:fixed;">Scroll</button>
      <br><br><br>
     <div>
     </div>
   </body>
</html>
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Related labels：
javascript Attributes effect scrolly
source：tutorialspoint.com
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