jQuery UI Autocomplete disabled option when set to true will disable the menu. The default value is False.
Syntax:
$( ".selector" ).autocomplete({disabled: false}),Approach: First, add the jQuery Mobile scripts needed for your project.
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.js"></script>
<link href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/themes/ui-lightness/jquery-ui.css" rel="stylesheet" type="text/css" />
Example 1:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport"
content="width=device-width, initial-scale=1">
<script src=
"https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.js">
</script>
<script src=
"https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.js">
</script>
<link href=
"http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/themes/ui-lightness/jquery-ui.css"
rel="stylesheet" type="text/css" />
<script>
$(function() {
var list = [
"One",
"two",
"Three",
"Four",
];
$( "#gfg" ).autocomplete({
source: list,
disabled:false
});
});
</script>
</head>
<body>
<div class = "ui-widget">
<p>jQuery UI| disabled Element</p>
<p>GeeksforGeeks</p>
<label for = "gfg">Tags: </label>
<input id = "gfg">
</div>
</body>
</html>
Output:

Example 2:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport"
content="width=device-width, initial-scale=1">
<script src=
"https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.js">
</script>
<script src=
"https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.js">
</script>
<link href=
"http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/themes/ui-lightness/jquery-ui.css"
rel="stylesheet" type="text/css" />
<script>
$(function() {
var list = [
"One",
"two",
"Three",
"Four",
];
$( "#gfg" ).autocomplete({
source: list,
disabled:true
});
});
</script>
</head>
<body>
<div class = "ui-widget">
<p>jQuery UI| disabled Element</p>
<p>GeeksforGeeks</p>
<label for = "gfg">Tags: </label>
<input id = "gfg">
</div>
</body>
</html>
Output: