title: Express, How to get value from html
body: <p>I've node with express and I've simple index.html file which serves like following</p>
  
  <p><strong>app.js</strong></p>
  
  <pre><code>app.use(express.static(path.join(__dirname, 'public')));
  
  app.get('/', function(req, res){
      res.sendFile(path.join(__dirname, 'views/index.html'));
  });
  
  
  app.post('/up', function(req, res){
  </code></pre>
  
  <p>....</p>
  
  <p><strong>index.html</strong></p>
  
  <pre><code>  &lt;div class="container"&gt;
      &lt;div class="row"&gt;
        &lt;div class="col-xs-12"&gt;
          &lt;div class="panel panel-default"&gt;
            &lt;div class="panel-body"&gt;
              &lt;span class="glyphicon glyphicon-cloud-upload"&gt;&lt;/span&gt;
              File Name: &lt;input type="text" name="FileName"&gt;&lt;br&gt;
              &lt;div class="progress"&gt;
                &lt;div class="progress-bar" role="progressbar"&gt;&lt;/div&gt;
              &lt;/div&gt;
              &lt;button class="btn btn-lg up-btn" type="button"&gt;Run App&lt;/button&gt;
            &lt;/div&gt;
          &lt;/div&gt;
        &lt;/div&gt;
      &lt;/div&gt;
    &lt;/div&gt;
  </code></pre>
  
  <p>when the user run the app there is input fields<code>file Name</code> which he can type value there , I want to <strong>get the value when the user click on the button</strong> <code>Run App</code> 
  inside the post method in the <code>app.js</code>, How can I get it ?</p>
  
  <p>I try with events without sucess</p>