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POCallback functions and jQuery's each iterator
 

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    <p>I'm having difficulty calling a callback function after an <em>each</em> iterator.</p> <p>Here's an example:</p> <pre><code>&lt;html&gt; &lt;head&gt; &lt;script type="text/javascript" src="jquery-1.4.min.js"&gt;&lt;/script&gt; &lt;script type="text/javascript" src="move.js"&gt;&lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;div&gt; &lt;div class="ani" style="position:relative; display: inline-block; top:10px; left:0px; width:30px; height:30px; background:#ddd;"&gt;&lt;/div&gt; &lt;div class="ani" style="position:relative; display: inline-block; top:10px; left:110px; width:30px; height:30px; background:#ddd;"&gt;&lt;/div&gt; &lt;div class="ani" style="position:relative; display: inline-block; top:10px; left:210px; width:30px; height:30px; background:#ddd;"&gt;&lt;/div&gt; &lt;div class="ani" style="position:relative; display: inline-block; top:10px; left:310px; width:30px; height:30px; background:#ddd;"&gt;&lt;/div&gt; &lt;/div&gt; &lt;/body&gt; &lt;/html&gt; $(document).ready(function(){ $ani = $('div.ani'); var redFlash = function(){ $ani.eq(0).css('background-color','#e35'); }; var goingDown = function(){ $ani.each(function(i){ $(this).animate({'top':'100px'}, (i+1)*2000); }),redFlash()}; goingDown(); }); </code></pre> <p>The <em>redFlash</em> function doesn't get called though. I've also tried:</p> <pre><code>var goingDown = function(){ $ani.each(function(i){ $(this).animate({'top':'100px'}, (i+1)*2000); }),function(){ $ani.eq(0).css('background-color','#e35'); }; }; </code></pre> <p>to no avail.</p> <p>How can I make redFlash run <strong>after</strong> all the animation inside the <em>each</em> iterator has completed? Is there a way I can make <em>goingDown</em> callback to <em>redFlash</em> after the animation completes?</p> <p>Also, does anyone know of any good online resources or books for javascript/jquery callback functions? The book I have is a little flaky on this topic.</p> <p><strong>Edit: Solved using Pointy's pointer on using counters.</strong></p> <pre><code>$(document).ready(function(){ $ani = $('div.ani'); var redFlash = function(){ $ani.eq(0).css('background-color','#e35'); }; var ani_size = $ani.length-1; console.debug(ani_size); var goingDown = function(){ $ani.each(function(i){ $(this).animate({'top':'100px'}, (i+1)*2000, function(){ console.debug(i); if (i == ani_size){ redFlash(); } }); }); }; goingDown(); }); </code></pre>
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    1. COAny particular reason why the `redFlash()` call is preceded by a comma instead of a semi-colon?
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    2. COWhen you typed "pyquery" in the question, you meant "jQuery", right?
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    3. COI placed a comma there because I thought that's how callback functions were called.
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