title: Get input type file value in jQuery when it has `multiple` attribute
body: <p>I have the following input type file with <code>multiple</code> attribute:</p>
  
  <pre><code>&lt;input accept=".txt" id="File" multiple="" name="File" type="file" /&gt;
  </code></pre>
  
  <p>When I use jQuery to read the input value:</p>
  
  <pre><code>$("#File").val()
  </code></pre>
  
  <p>I selected from my PC, two files. If I call above function it returns:</p>
  
  <pre><code>C:\fakepath\1.txt
  </code></pre>
  
  <p>I expect to return 2 file values (I don't know, separated by comma or other separator).</p>