Password Validation
Preview
Code
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container py-5">
<form class="needs-validation" novalidate>
<label class="form-label">Password</label>
<input type="password"
class="form-control"
required
minlength="6">
<div class="invalid-feedback">
Password must be at least 6 characters.
</div>
<button class="btn btn-primary mt-3">Register</button>
</form>
</div>
<script>
(function(){
var forms=document.querySelectorAll(".needs-validation");
forms.forEach(function(form){
form.addEventListener("submit",function(e){
if(!form.checkValidity()){
e.preventDefault();
}
form.classList.add("was-validated");
});
});
})();
</script>
</body>
</html>
Basic Validation