Do something once jQuery plugin has loaded

Question

I\'m dynamically loading jQuery and jQuery UI into a page, and I need to know when jQuery UI has successfully extended jQuery

Answer 1

<script src="jquery ui"></script>
<!-- jQuery UI has been initialized -->
<script src="my source"></script>

Answer 2

I used this code on some project to ensure that some scripts run sequentially. It did not work on IE (and I didn't have time to debug), but worked fine on everything else.

var node = document.createElement("script");
$.extend(node, {
    type: 'text/javascript',
    charset: 'utf-8',
    async: false,
    defer: true,
    src: /*...*/
});
$(node).bind('load', loadedCallback);
$('head')[0].appendChild(node);

Answer 3

I think this will do exactly what you need, add more dependency as much as you like.

(function () {
        function getScript(url, success) {
            var script = document.createElement('script');
            script.src = url;

            var head = document.getElementsByTagName('head')[0];
            var completed = false;
            script.onload = script.onreadystatechange = function () {
                if (!completed && (!this.readyState || this.readyState == 'loaded' || this.readyState == 'complete')) {
                    completed = true;
                    success();
                    script.onload = script.onreadystatechange = null;
                    head.removeChild(script);
                }
            };
            head.appendChild(script);
        }

        getScript("Scripts/jquery-1.6.1.js", function () {
            getScript("Scripts/jquery-ui-1.8.11.js", function () {
                alert($.ui);
            });
        });
})();

Tested with IE7, IE8, IE9, Firefox, Safari, Chrome and Opera