Get price value from span tag and append it inside a div after multiplying with a number in JavaScript?

Extract the value and convert it from String to integer to get price value from span tag.

Example

Following is the code −

<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>Document</title>
</head>
<link rel="stylesheet"
href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<body>
   <tr>
      <th>Value=</th>
      <td><strong><span class="purchase amount">
         <span></span>10</span></strong>
      </td>
      <p id="demo"></p>
   </tr>
</body>
<script>
   $(document).ready(function () {
      var v = parseInt($(".purchase.amount")
      .text()
      .trim()
      .replace(',', ''));
      var totalValue = v * 10;
      console.log(totalValue);
      $("#demo").text("After multiplying the Value 10=" + totalValue);
   });
</script>
</html>

To run the above program, save the file name anyName.html(index.html) and right click on the file. Select the option “Open with live server” in VS Code editor.