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    <p><code>$.each()</code> is synchronous. It's just a loop that calls a function directly, nothing fancy or mysterious about it. In your code, <code>$.each()</code> will call <code>loadNewFacebookPage()</code>, that function will run to completion, and then <code>$.each()</code> will move on to the next element.</p> <p>But is that what you're really asking about? <code>loadNewFacebookPage()</code> sounds like it's probably an asynchronous function. If it is, are you saying that you want to wait until the asynchronous activity has completed before moving on to the next loop iteration? The <code>$.each()</code> loop won't do that. Nor would an ordinary <code>for</code> loop. Instead, <code>loadNewFacebookPage()</code> would need to provide a completion callback, and that callback would advance a "loop" variable.</p> <p>If you can tell more about <code>loadNewFacebookPage()</code>&mdash;in particular whether it has a completion callback or one could be added&mdash;then it would be more clear what to do.</p> <p>For example, suppose <code>loadNewFacebookPage()</code> takes a second argument which is a completion callback function. Then you could write code like this:</p> <pre><code>$.getJSON( url, { uid: user }, function( rsp ) { var i = 0; next(); function next() { if( i &lt; rsp.length ) { var favorite_pageid = rsp[i++]; loadNewFacebookPage( favorite_pageid, next ); } } }); </code></pre> <p>Suppose that <code>loadNewFacebookPage()</code> were using the <code>$.ajax()</code> function to load the data. (It probably isn't doing that, is it? But this will serve to illustrate.) Then you might do something like:</p> <pre><code>function loadNewFacebookPage( id, done ) { $.ajax({ url: makeUrlFromId( id ), success: function( data ) { doStuffWithData( data ); done(); } }); } </code></pre> <p>I'm omitting a bunch of stuff here like error handling just to illustrate an example.</p>
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    1. USMichael Geary
    1. USMichael Geary
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    1. COThanks. Not really familiar with the synchronous vs. asynchronous. loadNewFacebookPage takes a pageid and gets data from the respective facebook page. It then appends the data. The error happens when I make a $.getJSON for post pictures (For the 3 top posts of the fb page). This takes a short time, meaning that meanwhile, the each loop has called the next loadNewFacebookPage() before the post pictures are ready. How do I make the callback?
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      1. USCasper Slynge
    2. COAnd yes, I want to wait until the asynchronous activity has been completed before moving on to next loop iteration :)
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    3. COAnd then at the end of my loadNewFacebookPage i call the next() function?
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