//create simple form using bootstrap and validate their field using java script..........
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<!-- Popper JS -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<!-- Latest compiled JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<h1 class="text-success text-center">User Registration Form</h1>
<div class="col-lg-8 m-auto d block">
<form action="#" onsubmit="return validation()" class="bg-light">
<div class="form-group">
<label>User Name:</label>
<input type="text" name="user" class="form-control" id="user" autocomplete="off">
<span id="username" class="text-danger font-weight-bold"></span>
</div>
<div class="form-group">
<label>Password:</label>
<input type="text" name="pass" class="form-control" id="pass" autocomplete="off">
<span id="password" class="text-danger font-weight-bold"></span>
</div>
<div class="form-group">
<label>Confirm Password:</label>
<input type="text" name="cnfpass" class="form-control" id="cnfpass" autocomplete="off">
<span id="cnfpassword" class="text-danger font-weight-bold"></span>
</div>
<div class="form-group">
<label>Mobile No:</label>
<input type="text" name="mobile" class="form-control" id="mobile" autocomplete="off">
<span id="mobileno" class="text-danger font-weight-bold"></span>
</div>
<div class="form-group">
<label>Email:</label>
<input type="text" name="email" class="form-control" id="email" autocomplete="off">
<span id="emailid" class="text-danger font-weight-bold"></span>
</div>
<input type="submit" name="submit" value="submit" class="btn btn-success">
</form>
</div>
</div>
<script type="text/javascript">
function validation() {
var user=document.getElementById('user').value;
var pass=document.getElementById('pass').value;
var cnfpass=document.getElementById('cnfpass').value;
var mobile=document.getElementById('mobile').value;
var email=document.getElementById('email').value;
if(user==' ')
{
document.getElementById('username').innerHTML="** please fill the User Name field";
//alert('required');
return false;
}
if(pass==' ')
{
document.getElementById('password').innerHTML="** please fill the Password field";
//alert('required');
return false;
}
if(cnfpass==' ')
{
document.getElementById('cnfpassword').innerHTML="** please fill the Confirm Password field";
//alert('required');
return false;
}
if(mobile==' ')
{
document.getElementById('mobileno').innerHTML="** please fill the mobile number field";
return false;
}
if(email==' ')
{
document.getElementById('emailid').innerHTML="** please fill the email field";
return false;
}
}
</script>
</body>
</html>
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