Live Demo: Creating Twitter Typeahead using JSON Data

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Creating Twitter Typeahead using JSON Data</title>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script  type="text/javascript" src="/examples/js/typeahead/0.11.1/typeahead.bundle.js"></script>
<script>
$(document).ready(function(){
    // Sonstructs the suggestion engine
    var countries = new Bloodhound({
        datumTokenizer: Bloodhound.tokenizers.whitespace,
        queryTokenizer: Bloodhound.tokenizers.whitespace,
        // The url points to a json file that contains an array of country names
        prefetch: '/examples/data/countries.json'
    });
    
    // Initializing the typeahead with remote dataset
    $('.typeahead').typeahead(null, {
        name: 'countries',
        source: countries,
        limit: 10 /* Specify maximum number of suggestions to be displayed */
    });
});  
</script>
<style>
.bs-example {
	font-family: sans-serif;
	position: relative;
	margin: 100px;
}
.typeahead, .tt-query, .tt-hint {
	border: 2px solid #CCCCCC;
	border-radius: 8px;
	font-size: 22px; /* Set input font size */
	height: 30px;
	line-height: 30px;
	outline: medium none;
	padding: 8px 12px;
	width: 396px;
}
.typeahead {
	background-color: #FFFFFF;
}
.typeahead:focus {
	border: 2px solid #0097CF;
}
.tt-query {
	box-shadow: 0 1px 1px rgba(0, 0, 0, 0.075) inset;
}
.tt-hint {
	color: #999999;
}
.tt-menu {
	background-color: #FFFFFF;
	border: 1px solid rgba(0, 0, 0, 0.2);
	border-radius: 8px;
	box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
	margin-top: 12px;
	padding: 8px 0;
	width: 422px;
}
.tt-suggestion {
	font-size: 22px;  /* Set suggestion dropdown font size */
	padding: 3px 20px;
}
.tt-suggestion:hover {
	cursor: pointer;
	background-color: #0097CF;
	color: #FFFFFF;
}
.tt-suggestion p {
	margin: 0;
}
</style>
</head>
<body>
    <div class="bs-example">
		<h2>Enter your country name</h2>
        <input type="text" class="typeahead tt-query" autocomplete="off" spellcheck="false">
    </div>
</body>
</html>