html-css-course/form.html at master · java2786/html-css-course · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script>
        function validate(e){
            var u = document.getElementsByName("user")[0].value
            var p = document.getElementsByName("pwd")[0].value
            console.log(u)
            console.log(p)

            if(u.length > 0 && p.length > 3){
                return true;
            } else {
                e.preventDefault();
                alert("invalid")
                return false;
            }

        }
    </script>
</head>
<body>
    <h1>Login Page</h1>
    <form onsubmit="validate(event)" action="https://www.google.com" method="post">
        Username: <input type="text" name="user" value="demo" placeholder="Enter your name"  />
        <br/>
        Password: <input type="text" name="pwd" value="demo@123" placeholder="Enter your password" />
        <br/>
        <select name="customer" id="">
            <option value="buyer">Buyer</option>
            <option value="seller">Seller</option>
        </select>
        <button>Login</button>
    </form>
</body>
</html>