How Can I Detect When a User Stops Scrolling in jQuery?

Detecting When Users Stop Scrolling with jQuery's scroll()

Problem Overview:

You're using jQuery's scroll() function to remove a class from elements while scrolling. However, you want to re-apply that class when scrolling stops.

Answer Explanation:

The provided solution utilizes a timer to detect when a user has stopped scrolling. It employs the scrollTimer variable to track the timeout. When the scroll() event occurs, the timer is cleared, and a new timer is set using setTimeout(). This timer calls a callback function after a specified delay (250ms in the example).

Enhanced Solution:

The provided code snippets include an extension for jQuery's on() event handler called $.unevent.js. This extension allows you to specify a delay after which the callback function should be triggered. This is ideal for scenarios where you only want to fire an event after a certain amount of time has passed.

Implementation:

Here's how to use the updated version:

$(window).on('scroll', function(e) {
    console.log(e.type + '-event was 250ms not triggered');
}, 250);

You can adjust the delay (in milliseconds) as needed.

Additional Notes:

• Ensure you check the GitHub repository for the latest updates of $.unevent.js.
• This solution can be applied to other events, such as resize, by simply replacing scroll with the desired event in the on() method.

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