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POGetting NaN as result of a calculation from data that was dynamically created
 

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  1. POGetting NaN as result of a calculation from data that was dynamically created
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    <p>Hi I'm having problems with updating results of a calculation using the change method.</p> <p>The calculation is made from dynamically created data that is placed into a table row. so the last column of each row should show the total of the price * qty (qty is derived from dynamically created select element). The way to create each row is by selecting an option from the auto-complete input box.</p> <p>Every time the user select the option from the select element that is in a dt ,the total of that row should be updated. it works the first time but the second time the result column turn to NaN.</p> <p><a href="http://jsfiddle.net/49axJ/3/" rel="nofollow"><strong><em>jSfiddle</em></strong></a></p> <p>I think i might have problems with how I set up the rows with the</p> <pre><code> $("tr").not(":first").each(function(){// meant to not get the header but the rest of the rows which have the data for the calculations </code></pre> <p>or the math part. i subtracted 0 from a string to make that into a number so I think I shouldn't get NaN. I know i messed up something that prob seems obvious to you but def not to me.</p> <blockquote> <pre><code> $("tr").not(":first").each(function(){ var qnty = 0; $('select').change(function(){ qnty = $('select').val(); calcTotal(); }) function calcTotal(){ var price = (($(".price").text()) - 0).toFixed(2) $(".total").text(qnty * price); } }) </code></pre> </blockquote> <p>To sum up the problem. the calculations don't work starting from the second time the row with data is created. The result in the result column is NaN. I would obviously like the result to be the calculation of qnty * price for each row in the Total column.</p> <p>Here the <a href="http://jsfiddle.net/49axJ/3/" rel="nofollow"><strong><em>jSfiddle</em></strong></a> to illustrate my problem.</p>
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    1. COWhat happens if you use parseInt or parseDouble instead of subtracting 0?
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      1. USNeil Neyman
    2. COi tried parseInt the same thing happened
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