How to create bootstrap dropdown without jquery - angularjs

Question

i want to create bootstrap dropdown without using jquery
<div class="dropdown">
<button class="btn btn-primary dropdown-toggle" type="button" data-toggle="dropdown">
Dropdown
<span class="caret"></span>
</button>
<ul class="dropdown-menu">
<li>HTML</li>
<li>CSS</li>
<li>JavaScript</li>
</ul>
</div>
please help how to do this

Answer 1

Rememebr adding ui-bootstrap directive to angular.module
Html Code
<ul uib-dropdown-menu role="menu" aria-labelledby="btn-append-to-body">
<li role="menuitem">Action</li>
<li role="menuitem">Another action</li>
<li role="menuitem">Something else here</li>
<li class="divider"></li>
<li role="menuitem">Separated link</li>
</ul>
Js Code
angular.module('ui.bootstrap.demo').controller('DropdownCtrl', function ($scope, $log) {
$scope.items = [
'The first choice!',
'And another choice for you.',
'but wait! A third!'
];
$scope.status = {
isopen: false
};
$scope.toggled = function(open) {
$log.log('Dropdown is now: ', open);
};
$scope.toggleDropdown = function($event) {
$event.preventDefault();
$event.stopPropagation();
$scope.status.isopen = !$scope.status.isopen;
};
$scope.appendToEl = angular.element(document.querySelector('#dropdown-long- content'));
});

Answer 2

I wrote my Dropdown menu script No Jquery No Bootstrap js, only bootstrap css which is easy to override anyway:
document.addEventListener('DOMContentLoaded', function () {
// -----Dropdown----------
// Rule: link.dropdown-link data-dropdown='dropdownIdentifier' div#dropdownIdentifier
let dropdowns = document.querySelectorAll('.dropdown-link');
for (dropdown of dropdowns) {
dropdown.onclick = function (e) {
let dropdownDiv = document.getElementById(dropdown.getAttribute('data-dropdown'))
if (dropdownDiv.style.display == "block") {
dropdownDiv.style.display = "none";
} else {
dropdownDiv.style.display = "block";
}
}
}
});
Now in html:
<a class="dropdown-link" data-dropdown="dropdownId">Prodbox</a>
<div id="dropdownId" class="dropdown-menu">
1
2
3
</div>
Note that dropdown-menu is bootstrap class to style it, you can write your own if you are not using bootstrap css