How to do calculations in HTML forms using JavaScript

0 votes

I'm developing a straightforward app that multiplies a user-inputted value by five and shows the outcome. I need some assistance with this because I'm just starting off.

Here is the HTML I use.

  <!DOCTYPE html>
    <head>
    <title>Area Calc</title>
       <link rel='stylesheet' type='text/css' href='style.css'/>
       <link href='http://fonts.googleapis.com/css?family=Titillium+Web' rel='stylesheet' type='text/css'>
       <link href='http://fonts.googleapis.com/css?family=Exo+2' rel='stylesheet' type='text/css'>
             <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
            <script type='text/javascript' src='script.js'></script>

            <head>
            <body>
            <div class="heading">Number Of Persons Calc</div>
         <div style=" color: white; text-align:auto; width:400px; margin-right:auto; margin-left:auto; border:1px solid white; margin-top: 120px;">
        <form method="" action="">
                <input type="text" name="area" placeholder="Enter in square metres!" class="input" />
                <input class="submit" type="submit" value="Submit" class="button" />

            </form>
            </div>
<body>
<html>

Can someone please tell me what JavaScript/jQuery code might possible multiply the user-entertainment value from the text input element by 5 and then show the user the result? Please, if you can, assist me.

Jul 26, 2022 in HTML by Tejashwini
 • 3,820 points • 1,590 views

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