title: bootstrap not working in laravel 5.6
body: <p>I tried adding a navigation bar to my laravel version 5.6 project but it doesn't add styles and nor JS </p>
  
  <p><a href="https://i.stack.imgur.com/dauLD.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/dauLD.png" alt="image"></a></p>
  
  <p><strong>my code :</strong></p>
  
  <pre><code>&lt;nav class="navbar navbar-inverse "&gt;
      &lt;div class="container"&gt;
        &lt;div class="navbar-header"&gt;
          &lt;button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar"&gt;
            &lt;span class="sr-only"&gt;Toggle navigation&lt;/span&gt;
            &lt;span class="icon-bar"&gt;&lt;/span&gt;
            &lt;span class="icon-bar"&gt;&lt;/span&gt;
            &lt;span class="icon-bar"&gt;&lt;/span&gt;
          &lt;/button&gt;
          &lt;a class="navbar-brand" href="#"&gt;LSAPP&lt;/a&gt;
        &lt;/div&gt;
        &lt;div id="navbar" class="collapse navbar-collapse"&gt;
          &lt;ul class="nav navbar-nav"&gt;
            &lt;li&gt;&lt;a href="/"&gt;Home&lt;/a&gt;&lt;/li&gt;
            &lt;li&gt;&lt;a href="/about"&gt;About&lt;/a&gt;&lt;/li&gt;
            &lt;li&gt;&lt;a href="/services"&gt;services&lt;/a&gt;&lt;/li&gt;
          &lt;/ul&gt;
        &lt;/div&gt;&lt;!--/.nav-collapse --&gt;
      &lt;/div&gt;
    &lt;/nav&gt;
  </code></pre>