How to make basic Autocomplete using jQuery UI ?

Last Updated : 4 Apr, 2023

jQuery UI Autocomplete can be used for providing auto-completion support for text fields in the webpage. The local Autocompleter is used when auto-completion options are given as an array to the Autocompleter to display as the choices.

Approach: First, add jQuery UI 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:

HTML 
<!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,
            });
        });
    </script>
</head>

<body>
    <div class="ui-widget">
        <p>GeeksforGeeks</p>

        <label for="gfg">Tags: </label>
        <input id="gfg" />
    </div>
</body>
</html>

Output:

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