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    <p>To wait for all handlers to finish before executing some code, you should use jQuery's <code>deferred</code> API. You can do something like this:</p> <pre><code>$.when($.ajax("/page1.php"), $.ajax("/page2.php")).done(function(a1, a2){ // only executes after both ajax calls have completed }); </code></pre> <p>Further, jQuery's <a href="http://api.jquery.com/trigger/" rel="noreferrer"><code>trigger</code></a> allows you to pass extra params. Pass in a function which will be the callback function.</p> <p>Your final code should look something like this:</p> <pre><code>$doc.trigger('beforedo', function() { // anything here only executes after the event has been handled }); $doc.on('beforedo',function(e, callback) { //do before addon stuff $.when($.ajax("/page1.php"), $.ajax("/page2.php")).done(function(a1, a2){ // at this point, all your AJAX calls have completed // call the callback function callback(); }); } </code></pre> <p>If need be, when you call <code>callback()</code> you can even pass in any result you might need to pass as an argument. Accordingly, change the function signature in your <code>.trigger()</code> call too.</p> <p>Expanding on the comment I left below, you can have a common loader function if you like:</p> <pre><code>$.when(load("page1"), load("page2")).done(function(){ // ... }); function load(file) { // return the $.ajax promise return $.ajax(file); } </code></pre> <p>See:</p> <p><a href="http://api.jquery.com/category/deferred-object/" rel="noreferrer">jQuery deferred</a><br> <a href="http://api.jquery.com/jQuery.when/" rel="noreferrer">jQuery.when()</a><br> <a href="http://api.jquery.com/trigger/" rel="noreferrer">jQuery.trigger</a></p>
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    1. POWaiting for event to be handled to continue executing the function that has triggered the event.
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    1. POWaiting for event to be handled to continue executing the function that has triggered the event.
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    1. COYeah but then where's the modularity? I think that's his problem, he has multiple addons with separate closures/contexts and does not want the main module to depend on the addons but the other way around.
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      1. USSergiu Paraschiv
    2. COIn my example above, the `$.when()` doesn't need to have the ajax calls. It can instead be to a common loader function that returns the `$.ajax` promise making it `$.when(load("file1"), load("file2"))`
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    3. COYup, that's good. That way he can return any promise, not only `$.ajax` ones. I still hate using a promise where there's no async calls going on though...
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      1. USSergiu Paraschiv
 

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