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

Javascript Web Development Front End Technology Object Oriented Programming

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.

This will produce the following output −