A simple login form using JavaScript programming language. I hope you will find my work useful.
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Program Listing
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Simple Login Form Using JavaScript</title>
<style>
* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
body {
min-height: 100vh;
display: flex;
justify-content: center;
align-items: center;
background-color: #01C3FF;
font-family: sans-serif;
}
form,
.message {
padding: 30px;
border-radius: 3px;
background: #fff;
}
h2, h4 {
margin: 5px 0;
color: #1F1A19;
text-align: center;
line-height: 1.2;
}
input {
display: block;
padding: 8px 3px;
outline: none;
font-size: 12px;
border-top: 0;
border-right: 0;
border-left: 0;
border-bottom: 2px solid #01C3FF;
border-radius: 0;
margin-top: 10px;
width: 100%;
color: #888;
}
input:first-of-type {
margin-top: 15px;
}
.btn {
padding: 8px ;
text-align: center;
display: block;
width: 100%;
cursor: pointer;
border: none;
background: #01C3FF;
color: #fff;
margin-top: 10px;
border-radius: 3px;
text-decoration: none;
}
button:hover {
opacity: 0.9;
}
.hide {
display: none;
}
#messageDetails {
margin-bottom: 20px;
text-align: center;
}
</style>
</head>
<body>
<form action="" id="frmLogin">
<hr>
<h2>Simple Login Form<br>Using JavaScript</h2>
<h4>Jake R. Pomperada, MAED-IT, MIT</h4>
<hr>
<input type="text" name="txtUsername" id="txtUsername" placeholder="Enter your username" required>
<input type="password" name="txtPassword" id="txtPassword" placeholder="Enter your password" required>
<button type="submit" class="btn">Login</button>
</form>
<div class="message hide">
<p id="messageDetails"></p>
<a href="" class="btn">Reset</a>
</div>
<script>
document.querySelector('form').onsubmit = (e) => {
e.preventDefault()
let username = "admin",
password = "admin",
inputUser = document.querySelector('#txtUsername').value,
inputPass = document.querySelector('#txtPassword').value
if (inputUser != username || inputPass != password) {
document.querySelector('#messageDetails').innerHTML = "Username and Password do not match.<br>Please try again."
}
if (inputUser == username && inputPass == password) {
document.querySelector('#messageDetails').innerHTML = "Success!<br>You're currently logged in now."
}
document.querySelector('#frmLogin').classList.add("hide")
document.querySelector('.message').classList.remove("hide")
}
</script>
</body>
</html>
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