jQuery scroll() Method
jQuery scroll() Method
The jQuery scroll() method is used for the following 2 purpose
- To run a callback when a specified element is scrolled.
- To trigger the scroll event of a specified element.
Run a Callback
In the following example, we will run a callback function when a specified element is scrolled.
Example
HTML Editor
<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<style>
div{
border: 1px solid black;
line-height: 2;
width: 150px;
height: 100px;
overflow-y: scroll;
}
</style>
</head>
<body>
<h1>jQuery scroll() Method</h1>
<div>
Here is some dummy text to make the div scrollable. Please don't forget to scroll up and down.
</div>
<p>Scroll - <span id="point">0</span></p>
<script>
$(document).ready(function(){
var count = 0;
$("div").scroll(function(){
count += 1;
$("#point").text(count);
});
});
</script>
</body>
</html>
Syntax
$(selector).scroll(callback);
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| callback | Optional | Specifies a function to be called once user is scrolling on a element which is scrollable. |
Trigger a scroll Event
In the following example, we will trigger a scroll event when a button is clicked.
Example
HTML Editor
<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>
<body>
<h1>jQuery scroll() Method</h1>
<div>
Here is some dummy text to make the div scrollable. Please don't forget to scroll up and down.
</div>
<button>Trigger scroll Event</button>
<p>Scroll - <span id="point">0</span></p>
<script>
$(document).ready(function(){
var count = 0;
$("div").scroll(function(){
count += 1;
$("#point").text(count);
});
$("button").click(function(){
$("div").scroll();
});
});
</script>
</body>
</html>
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