Trigger an event prior to the loading of a div

I have been working on a jQuery code that needs to run just before a specific div is displayed on the page. Take a look at the snippet below as an example of what I am trying to achieve:

$(document).ready(function(){
    $('.article').on('mouseenter', function(){
        $(this).css('background-color', "#ec5252").fadeTo('medium', 0.8);
        $(this).find('.articleHead h1').css('color', '#ffffff');
        $(this).find('.articleDetails p').css('color', '#ffffff');
    }).on('mouseleave', function(){
        $(this).css('background-color', '#ffffff').fadeTo('medium',1.0);
        $(this).find('.articleHead h1').css('color', '#414141');
        $(this).find('.articleDetails p').css('color', '#a2a2a2');
    }).on('click', function(){          
        var id = $(this).attr('data-id');
        $(location).attr('href','article.php?articleId='+id);       
    }).on('beforeShow', function(){
        alert('about to show');
    }).on('afterShow', function(){
        alert('just shown');
    });
});

Even though I have set up event handlers for various actions related to the .article class, I am struggling to make the code work specifically for executing actions just before and after each .article div appears on the web page. The beforeShow and afterShow events are not functioning as expected. If you have any insights or suggestions, please let me know!

Answer №1

One issue is that the events beforeShow and afterShow are not default events in jQuery. In order for them to work, they must be added to jQuery manually. You can reference a helpful example of this in this fiddle. Just remember, if you choose to use this method, your .article elements will need to be hidden by default (display: none;) and you will have to call .show on them manually.

However, if you find yourself needing to manually call show on these DOM elements, it may also be a good opportunity to incorporate any additional functions or calls before showing them.

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