Autocomplete !!

<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>jQuery UI autocomplete</title>
<script
src="https://code.jquery.com/jquery-3.4.1.min.js"
integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo="
crossorigin="anonymous"></script>
<script
src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"
integrity="sha256-VazP97ZCwtekAsvgPBSUwPFKdrwD3unUfSGVYrahUqU="
crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<style>
.ui-autocomplete-category {
font-weight: bold;
padding: .2em .4em;
margin: .8em 0 .2em;
line-height: 1.5;
color: red;
}
</style>
<script>
$(function() {
  $.widget( "custom.autocompleteCategory", $.ui.autocomplete, {
     _create: function() {
       this._super();
       this.widget().menu( "option", "items", "> :not(.ui-autocomplete-category)" );
     },
     _renderMenu: function( ul, items ) {
       var that = this,
         currentCategory = "";
       $.each( items, function( index, item ) {
         var li;
         if ( item.category != currentCategory ) {
           ul.append( "<li class='ui-autocomplete-category'>" + item.category + "</li>" );
           currentCategory = item.category;
         }
         li = that._renderItemData( ul, item );
         if ( item.category ) {
           li.attr( "aria-label", item.category + " : " + item.label );
         }
       });
     }
   });
   var italianTeams = [
     { label: "Juventus", category: "North" },
     { label: "Inter", category: "North" },
     { label: "Milan", category: "North" },
     { label: "Roma", category: "Center" },
     { label: "Lazio", category: "Center" },
     { label: "Napoli", category: "South" },
     { label: "Palermo", category: "South" }
   ];
  $( "#tags" ).autocompleteCategory({
    source: italianTeams
  });
});
</script>
</head>
<body>
<div class="ui-widget" align="center">
  <label for="tags">Squadre: </label>
  <input id="tags">
</div>

<center>
<br>
    label: "Juventus", category: "North" },<br> 
      label: "Inter", category: "North" },<br>
      label: "Milan", category: "North" },<br>
      label: "Roma", category: "Center" },<br>
      label: "Lazio", category: "Center" },<br>
      label: "Napoli", category: "South" },<br>
      label: "Palermo", category: "South" }<br>

</center>

</body>
</html>

<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>jQuery UI autocomplete</title>
<script
src="https://code.jquery.com/jquery-3.4.1.min.js"
integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo="
crossorigin="anonymous"></script>
<script
src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"
integrity="sha256-VazP97ZCwtekAsvgPBSUwPFKdrwD3unUfSGVYrahUqU="
crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<style>
.ui-autocomplete-category {
font-weight: bold;
padding: .2em .4em;
margin: .8em 0 .2em;
line-height: 1.5;
color: red;
}
</style>
<script>
$(function() {
$.widget( "custom.autocompleteCategory", $.ui.autocomplete, {
_create: function() {
this._super();
this.widget().menu( "option", "items", "> :not(.ui-autocomplete-category)" );
},
_renderMenu: function( ul, items ) {
var that = this,
currentCategory = "";
$.each( items, function( index, item ) {
var li;
if ( item.category != currentCategory ) {
ul.append( "<li class='ui-autocomplete-category'>" + item.category + "</li>" );
currentCategory = item.category;
}
li = that._renderItemData( ul, item );
if ( item.category ) {
li.attr( "aria-label", item.category + " : " + item.label );
}
});
}
});
var italianTeams = [
{ label: "Juventus", category: "North" },
{ label: "Inter", category: "North" },
{ label: "Milan", category: "North" },
{ label: "Roma", category: "Center" },
{ label: "Lazio", category: "Center" },
{ label: "Napoli", category: "South" },
{ label: "Palermo", category: "South" }
];
$( "#tags" ).autocompleteCategory({
source: italianTeams
});
});
</script>
</head>
<body>
<div class="ui-widget" align="center">
<label for="tags">Squadre: </label>
<input id="tags">
</div>

<center>
<br>
label: "Juventus", category: "North" },<br>
label: "Inter", category: "North" },<br>
label: "Milan", category: "North" },<br>
label: "Roma", category: "Center" },<br>
label: "Lazio", category: "Center" },<br>
label: "Napoli", category: "South" },<br>
label: "Palermo", category: "South" }<br>

</center>

</body>
</html>