Change a map's language | TrackAsia GL JS Docs

Use setLayoutProperty to switch languages dynamically. For a more complete solution see the mapbox-gl-language plugin.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Change a map's language</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
<script src="https://unpkg.com/trackasia-gl@1.0.5/dist/trackasia-gl.js"></script>
<link href="https://unpkg.com/trackasia-gl@1.0.5/dist/trackasia-gl.css" rel="stylesheet" />
<style>
	body { margin: 0; padding: 0; }
	#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<style>
#buttons {
width: 90%;
margin: 0 auto;
}
.button {
display: inline-block;
position: relative;
cursor: pointer;
width: 20%;
padding: 8px;
border-radius: 3px;
margin-top: 10px;
font-size: 12px;
text-align: center;
color: #fff;
background: #ee8a65;
font-family: sans-serif;
font-weight: bold;
}
</style>
<div id="map"></div>
<ul id="buttons">
<li id="button-en" class="button">English</li>
<li id="button-vi" class="button">Vietnam</li>
<li id="button-de" class="button">German</li>
<li id="button-es" class="button">Spanish</li>
</ul>
<script>
var map = new trackasiagl.Map({
container: 'map',
style: 'https://maps.track-asia.com/styles/v1/streets.json?key=public_key',
center: {"lat":10.762622,"lng":106.660172},
zoom: 2.9
});

document
.getElementById('buttons')
.addEventListener('click', function (event) {
var language = event.target.id.substr('button-'.length);
// Use setLayoutProperty to set the value of a layout property in a style layer.
// The three arguments are the id of the layer, the name of the layout property,
// and the new property value.
map.setLayoutProperty('country-label', 'text-field', [
'get',
'name:' + language
]);
});
</script>
 
</body>
</html>