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POjQuery returns NaN
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  1. POjQuery returns NaN
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    copied!<p>I have a problem - when I complete both fields(input 1 and input 2) and I try to change one of them, jQuery returns NaN . Can someone help me, please?</p> <p>I've tried to use parseInt, parseFloat but it still doesn't work</p> <p>Sorry for my english:]</p> <p>js:</p> <pre><code>$(document).ready(function(){ $('input[name^="input"]').keypress(function(event) { if(event.which &amp;&amp; (event.which &lt; 48 || event.which &gt; 57)) { event.preventDefault(); } }); var $tabs = $('input[name^="tab"]'); $.each($tabs, function(i, a) { $(a).val(''); }); $('input[name^="input"]').keyup(function() { var count = parseInt($(this).val()); if($(this).attr('name') == 'input1') { var newValue = count * parseFloat($('input[name="tab1_hidden"]').val()); $('input[name="tab1"]').val(newValue); } if($(this).attr('name') == 'input2') { $.each($tabs, function(i, a) { if(i &gt; 0) { var inputHidden = $(a).attr('name') + '_hidden'; var newValue = count * parseFloat($('input[name="' + inputHidden + '"]').val()); $(a).val(newValue); } }); } }); }); </code></pre> <p>HTML:</p> <pre><code>&lt;form action="" method="post"&gt;&lt;div&gt; &lt;p&gt;input 1: &lt;input type="text" name="input1" value=""&gt;&lt;/p&gt; &lt;p&gt; &lt;input type="hidden" name="input1_hidden" value=""&gt;&lt;/p&gt; &lt;p&gt;input 2: &lt;input type="text" name="input2" value=""&gt;&lt;/p&gt; &lt;p&gt; &lt;input type="hidden" name="input2_hidden" value=""&gt;&lt;/p&gt; &lt;p&gt;&amp;nbsp;&lt;/p&gt; &lt;p&gt;tab 1: &lt;input type="text" name="tab1" value=""&gt;&lt;/p&gt; &lt;p&gt;&lt;input type="hidden" name="tab1_hidden" value="10"&gt;&lt;/p&gt; &lt;p&gt;tab 2: &lt;input type="text" name="tab2" value=""&gt;&lt;/p&gt; &lt;p&gt; &lt;input type="hidden" name="tab2_hidden" value="20"&gt;&lt;/p&gt; &lt;p&gt;tab 3: &lt;input type="text" name="tab3" value=""&gt;&lt;/p&gt; &lt;p&gt; &lt;input type="hidden" name="tab3_hidden" value="30"&gt;&lt;/p&gt; &lt;p&gt;tab 4: &lt;input type="text" name="tab4" value=""&gt;&lt;/p&gt; &lt;p&gt; &lt;input type="hidden" name="tab4_hidden" value="40"&gt;&lt;/p&gt; &lt;p&gt;tab 5: &lt;input type="text" name="tab5" value=""&gt;&lt;/p&gt; &lt;p&gt; &lt;input type="hidden" name="tab5_hidden" value="50"&gt;&lt;/p&gt; &lt;p&gt;tab 6: &lt;input type="text" name="tab6" value=""&gt;&lt;/p&gt; &lt;p&gt; &lt;input type="hidden" name="tab6_hidden" value="60"&gt;&lt;/p&gt; &lt;p&gt;tab 7: &lt;input type="text" name="tab7" value=""&gt;&lt;/p&gt; &lt;p&gt; &lt;input type="hidden" name="tab7_hidden" value="70"&gt;&lt;/p&gt; &lt;p&gt;tab 8: &lt;input type="text" name="tab8" value=""&gt;&lt;/p&gt; &lt;p&gt; &lt;input type="hidden" name="tab8_hidden" value="80"&gt;&lt;/p&gt; &lt;/div&gt; &lt;/form&gt; </code></pre>
 

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