title: TypeError: $(...).mask is not a function in date format using jquery
body: <p>When I am doing the date format to the input text using jQuery, it shows this type of error.</p>
  
  <p>Here is my code</p>
  
  <pre><code>&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.mask/1.14.10/jquery.mask.js"&gt;&lt;/script&gt;
  &lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"&gt;&lt;/script&gt;
  
  &lt;input type="text" id="date" name="bday"/&gt;
  
      $(document).ready(function () {
          alert();
          $("#date").mask("99/99/9999", { placeholder: "mm/dd/yyyy" });
      });
  </code></pre>