Exploring the impact of CSS rules on elements post-application in jQuery/JavaScript

After CSS rules are applied to all elements in the DOM, is there an event that triggers?

I am aware that the binding $(window).load() from jQuery is fired when all JS and CSS files are loaded.

However, is there a specific event that occurs after the CSS rules have been applied? There seems to be a small delay of few milliseconds between applying them and dynamically including them. For example:

$('#design').attr('href', 'style.css') // design is a <link href="otherstyles.css">
.

Answer №1

According to this source, one possible solution is to fetch the CSS file using AJAX and then leverage jQuery's complete callback function to determine when the CSS has finished loading.

Answer №2

No such event can be found.

  • If you want to track attribute changes, you have the option of listening to the DOMAttrModifed mutation event.
  • Alternatively, you can keep an eye on specific style properties by using a periodic function (interval),
  • Another approach involves modifying the jQuery.fn.css method in order to intercept style changes through the jQuery API. This method assumes that all necessary CSS property updates are carried out using jQuery.

    (function($){
        var $css = $.fn.css;
        $.fn.css = function(a,c) {
            if (c == null) return $css.call(this, a);
    
            return this.each(function() {
                var $this = $(this);
                // Your function logic...
                // ...
                // Call original method
                $css.call($this, a, c);
            });
        };
    })(jQuery);
    

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