filter.html

<!DOCTYPE html>
<html>
<head>
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"></script>
  <style>
  /* Style the input field */
  #myInput {
    padding: 20px;
    margin-top: -6px;
    border: 0;
    border-radius: 0;
    background: #eaeff0;
  }
  </style>
</head>
<body>

<div class="container">
  <p>Open the dropdown menu and type something in the input field to search for dropdown items:</p>
  <div class="dropdown">
    <button class="btn btn-primary dropdown-toggle" type="button" data-toggle="dropdown">
        <img src = C:\Users\user\Pictures\filter_image.png height= "40" width="40">Filter
    <span class="caret"></span> </button>
    <ul class="dropdown-menu">
      <li><a href="#">Price (Low-High)</a></li>
      <li><a href="#">Price (High-Low)</a></li>
      <li><a href="#">Rating</a></li>
      <li><a href="#">Name (A-Z)</a></li>
    </ul>
  </div>
</div>

<!-- <script>
$(document).ready(function(){
  $("#myInput").on("keyup", function() {
    var value = $(this).val().toLowerCase();
    $(".dropdown-menu li").filter(function() {
      $(this).toggle($(this).text().toLowerCase().indexOf(value) > -1)
    });
  });
});
</script> -->

</body>
</html>