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<!DOCTYPE html>
<html>
<body>
<style>
	body {
    	min-height: 5000px;
    }
</style>
<h2>JavaScript addEventListener()</h2>

<p>This example uses the addEventListener() method to attach a click event to a button.</p>

<button id="myBtn">Try it</button>

<p id="demo"></p>

<script>
window.onscroll = function() {
	console.log('onscroll')
}
window.addEventListener('scroll', function(e) {
  console.log('scroll 1');
});
window.addEventListener('scroll', function(e) {
  console.log('scroll 2');
});
window.addEventListener('scroll', function(e) {
  console.log('scroll 3');
});
</script>

</body>
</html>