https://arxiv.org/static/base/1.0.0a3/js/notification.js

1/**
2  * Implements dismissable notifications.
3  *
4  * To use, insert an element (e.g. a button) with the class
5  * `notification-dismiss` that is the direct child of the element that you
6  * want to be dismissable. For example:
7  *
8  * <div class="notification">
9  *   <button class="notification-dismiss">Go away</button>
10  *   The parent .notification div will be hidden when the button is clicked.
11  * </div>
12  *
13  */
14
15var dismiss_notification_factory = function(elem) {
16    var dismiss_notification = function() {
17        elem.parentElement.style.display = 'none';
18    }
19    return dismiss_notification;
20}
21
22window.addEventListener('DOMContentLoaded', function() {
23    var elems = document.getElementsByClassName('notification-dismiss');
24    for (i = 0; i < elems.length; i++) {
25        elems[i].addEventListener('click', dismiss_notification_factory(elems[i]));
26    }
27});