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showing results for - "javascript login validation"
Hilda
19 Mar 2019
1<html>
2<body>
3<form id="form1" runat="server">
4    <div class="container">
5        <div class="main">
6            <h2>
7                Javascript Login Form Validation</h2>
8            <form id="form_id" method="post" name="myform">
9            <label>
10                User Name :</label>
11            <input type="text" name="username" id="username" />
12            <br><br>
13            <label>
14                Password :</label>
15            <input type="password" name="password" id="password" />
16            <input type="button" value="Login" id="submit" onclick="validate();" />
17            </form>
18        </div>
19    </div>
20    </form>
21</html>
22</body>
source
Russell
16 Nov 2018
1<script language = "JavaScript">
2        function validate() {
3            var username = document.getElementById("username").value;
4            var password = document.getElementById("password").value;
5            if (username == null || username == "") {
6                alert("Please enter the username.");
7                return false;
8            }
9            if (password == null || password == "") {
10                alert("Please enter the password.");
11                return false;
12            }
13            alert('Login successful');
14            
15        } 
16</script>
source
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