navbar-toggle breakpoint

by madhatter160

HTML

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/css/bootstrap.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/js/bootstrap.min.js"></script>
<body>
    <nav class="navbar navbar-inverse navbar-fixed-top">
        <div class="container-fluid">
            <div class="navbar-header">
                <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
                    <span class="sr-only">Toggle navigation</span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                </button>
                <a class="navbar-brand" href="#">Project name</a>
            </div>
            <div id="navbar" class="navbar-collapse collapse">
                <ul class="nav navbar-nav navbar-right">
                    <li><a href="#">Dashboard</a></li>
                    <li><a href="#">Settings</a></li>
                    <li><a href="#">Profile</a></li>
                    <li><a href="#">Help</a></li>
                </ul>
                <form class="navbar-form navbar-right">
                    <input type="text" class="form-control" placeholder="Search...">
                    </form>
                </div>
            </div>
        </nav>
</body>

CSS

/*
 * Base structure
 */

/* Move down content because we have a fixed navbar that is 50px tall */
body {
  padding-top: 50px;
}


/*
 * Global add-ons
 */

.sub-header {
  padding-bottom: 10px;
  border-bottom: 1px solid #eee;
}

/*
 * Top navigation
 * Hide default border to remove 1px line.
 */
.navbar-fixed-top {
  border: 0;
}

JavaScript

$( ".navbar-toggle" ).on( "show.bs.collapse", function() {
    alert( "hamburger show" );
} )
.on( "hide.bs.collapse", function() {
    alert( "hamburger hide" );
} );