jQuery scroll() function triggers when the element is scrolled. This method attaches a handler, which executes when the scroll event is fired. A scroll event fires for all elements which are scrollable and it also fires for window objects.
Table of Contents
jQuery scroll()
The syntax for using jQuery scroll() function is:
- scroll()
This signature is used without any arguments. This method is a shortcut for .trigger( "scroll" ).
- scroll(handler)
The handler is a function, which is executed when the element gets scrolled. This method is a shortcut for .on( "scroll", handler ).
jQuery scroll example
Following example demonstrates jQuery scroll() function usage.
<!DOCTYPE html>
<html>
<head>
<title>jQuery Scroll</title>
<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
<style>
p {
color: green;
}
.divScroll{
border:1px solid black;
width:100px;
height:200px;
overflow:scroll;
}
</style>
<script>
var x=0;
$(document).ready(function(){
$("div").scroll(function(){
$("span").text(x++);
});
});
</script>
</head>
<body>
<p><b>Scroll Event Demo</p>
<div class="divScroll">Paragraph one Paragraph two Paragraph three Paragraph four Paragraph five Paragraph six Paragraph seven</div>
<p>Scroll event triggered <b><span>0</span></b> times.</p>
</body>
</html>
In this example, you can see that the scroll() method is triggered when you scroll in the <div> element. The handler attached to the scroll() method executes with each scroll event displays the count below the <div> element.
jQuery scroll demo
You can try it yourself by scrolling in the below div section.
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