navbar swipe from let in bootstrap4 code example

Example: navbar swipe from let in bootstrap4

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">

    <nav class="navbar navbar-toggleable-md navbar-inverse fixed-top bg-inverse">
	<button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="slide-collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
	<span class="navbar-toggler-icon"></span>
	</button>
	<a class="navbar-brand" href="">Roknil Style</a>
	<div class="collapse navbar-collapse" id="navbarCollapse">
		<ul class="navbar-nav mr-auto">
			<li class="nav-item active">
				<a class="nav-link" href="#">Home</a>
			</li>
			<li class="nav-item">
				<a class="nav-link" href="#">Link</a>
			</li>
			<li class="nav-item">
				<a class="nav-link" href="#">About</a>
			</li>
		</ul>
		<form class="form-inline mt-2 mt-md-0">
		<input class="form-control mr-sm-2" type="text" placeholder="Search">
		<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
		</form>
	  </div>
    </nav>

<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>