JavaScriptPractice/form_validation.html at main · EduKeyPath/JavaScriptPractice · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
<!DOCTYPE html>
<html lang="en" ng-app="demo">
<head>
<meta charset="UTF-8">
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1" />
<title>demo</title>
</head>
<body>

    <form action="" method="POST" id="" name="" onsubmit="return submitData()">
        <label>Name</label>
        <input type="text" name="" value="" id="name" />
        <br/>

        <label>Email</label>
        <input type="email" name="" value="" id="email" />
        <br/>

        <label>Mobile</label>
        <input type="number" name="" value="" id="number" />
        <br/>
        <button type="submit">Submit</button>
    </form>

    <script>
        function submitData(){
            if(document.getElementById('name').value == ''){
                alert('Please Enter name');
                document.getElementById('name').focus();
                 return false;
            }
            else if(document.getElementById('email').value == ''){
                alert('Please Enter Email id');
                document.getElementById('email').focus();
                 return false;
            }
            else if (document.getElementById('number').value==''){
                alert('Please enter mobile no.');
                document.getElementById('number').focus();
                return false;
            }


        }
    </script>

</body>
</html>