jquery/task2.html at master · codeforwebdevelopment/jquery · GitHub

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<!DOCTYPE html>
<html>
<head>
<title>
</title>
<style>
table,th, td {
border:1px solid black;
width:50px;
}
</style>
<script src="jquery-3.1.1.min.js"></script>
<script>
$(document).ready(function(){
 var toAa = $('input[name=product]').val();
 var pq=$('.rt');
 var pri=toA*pq;
 $('.ne').text('pri');
})
</script>
</head>
<body>
<table>
<tr>
<th>Product_id</th>
<th>Product_cost</th>
<th>Product_name</th>
<th>Product_available</th>
<th>Product_quantity</th>
<th>Total cost</th></tr>
<tr>
<td>1</td>
<td class="rt">50</td>
<td>a</td>
<td>10</td>
<td><input type="text" name="product"></td>
<td class="ne"></td>
</tr>
<tr>
<td>2</td>
<td>100</td>
<td>b</td>
<td>15</td>
<td><input type="text"></td>
<td></td></tr>
<tr>
<td>3</td>
<td>150</td>
<td>c</td>
<td>8</td>
<td><input type="text"></td>
<td></td></tr>
<tr>
<td>4</td>
<td>80</td>
<td>d</td>
<td>5</td>
<td><input type="text"></td>
<td></td></tr>
<tr>
<td>5</td>
<td>70</td>
<td>e</td>
<td>6</td>
<td><input type="text"></td>
<td></td></tr>

</table>
<button>Final Total cost</button>
<br>
<body>
</html>