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    <p>Using <code>return false;</code> in a <code>$.each</code> loop will exit it. I think you meant for the <code>return false;</code> to be for the <code>click</code> handler - to prevent the default behavior of the <code>&lt;a&gt;</code> and stop the event propagation. So if you move the <code>return false;</code> out one level, it seems to work:</p> <pre><code>$(document).ready(function () { $('.calculate').on('click', function() { $('.hours-table tr').each(function() { var hours = $(this).find('input.hours').val(); var rate = $(this).find('input.rate').val(); var dateTotal = (hours * rate); $(this).find('input.date-total').val(dateTotal); }); //END .each return false; }); // END click }); </code></pre> <p><strong>DEMO:</strong> <a href="http://jsfiddle.net/Lr5pq/1/" rel="nofollow">http://jsfiddle.net/Lr5pq/1/</a></p> <p><strong>UPDATE:</strong></p> <p>The problem with getting <code>undefined</code> and <code>NaN</code> is because this is selecting all <code>&lt;tr&gt;</code> elements - that includes your header row:</p> <pre><code>&lt;tr&gt; &lt;th&gt;Hours&lt;/th&gt; &lt;th&gt;Hourly Rate&lt;/th&gt; &lt;th&gt;Date Total&lt;/th&gt; &lt;/tr&gt; </code></pre> <p>Since your loop was exiting immediately after the first (where the first row was the header row), any <code>console.log</code>/debugging was for the header row. So of course, there would be no elements found. To fix that, you should be using <code>&lt;thead&gt;</code> and <code>&lt;tbody&gt;</code> to separate purpose. So your table should look like:</p> <pre><code>&lt;table class="hours-table"&gt; &lt;thead&gt; &lt;tr&gt; &lt;th&gt;Hours&lt;/th&gt; &lt;th&gt;Hourly Rate&lt;/th&gt; &lt;th&gt;Date Total&lt;/th&gt; &lt;/tr&gt; &lt;/thead&gt; &lt;tbody&gt; &lt;tr&gt; &lt;td class="hours"&gt;&lt;input type="text" class="hours" name="hours-01" value="" /&gt;&lt;/td&gt; &lt;td class="rate"&gt;&lt;input type="text" class="rate" name="rate-01" value="" /&gt;&lt;/td&gt; &lt;td class="date-total"&gt;&lt;input type="text" class="date-total" name="date-total-01" value="" /&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/tbody&gt; &lt;/table&gt; </code></pre> <p>And your <code>tr</code> selector should be:</p> <pre><code>$('.hours-table').find('tbody').find('tr').each(function() { </code></pre> <p>(I like using <code>.find()</code> instead of a long selector, but the point is that you add the <code>tbody</code> part to target just the <code>&lt;tbody&gt;</code> rows)</p> <p><strong>DEMO:</strong> <a href="http://jsfiddle.net/Lr5pq/4/" rel="nofollow">http://jsfiddle.net/Lr5pq/4/</a></p>
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    1. POLoop through table rows, calculate (multiply) input values, set result in another input
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    1. COThanks Gents. Unbelievable oversight on my part. Pardon me while I step away and bash my head against the wall for a few more minutes. I'll be fine.
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    2. COThx Ian, indeed - I was sufficiently confused by undefined and NaN that I didn't realize the loop was exiting; I wasn't adding rows every time I tested.
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    3. COProps also to you jrummell - thank you.
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