Leverage jQuery to dynamically update the CSS background whenever it is altered on the server

I'm attempting to use jQuery to dynamically update the background of a div if it changes on the server, allowing the page to stay open with a refreshed background image.

Currently, I have code that successfully updates the content of #current div but struggles to modify the background image of #banner.

setInterval(function(){
    $.get('/index.php',function(data){
        $('#current').empty().append($('#current_refresh',data));
        var banner_bg = $(data).filter( $('#banner').css('background-image') );
        $('#banner').css('backgroundImage',banner_bg);
    });
}, 5000);
jquerycssajaxbackground

Answer №1

There is an issue with this specific line of code:

$(data).filter( $('#banner').css('background-image') );

The jQuery filter method is designed to work on elements, not on the string returned by css().

If you want to extract the background image from the inline styles of an element, you can try the following approach:

$.get('/index.php',function(data){
    $('#current').empty().append($('#current_refresh',data));

    var banner_bg = $('<div />', {html:data}).find('#banner').css('background-image');

    $('#banner').css('background-image', banner_bg);

});

Keep in mind that this method will only function correctly if the target element has a structure similar to this:

<div id="banner" style="background-image: url('image.jpg')"></div>

It may not retrieve styles from external stylesheets or other sources.

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