Fit the map to the boundaries of all features in the feature layer by querying the feature service. To learn more about feature layers, go to the Data hosting guide.
<html>
<head>
<meta charset="utf-8" />
<title>Zoom to all features</title>
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no" />
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" crossorigin="" />
<script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js" crossorigin=""></script>
<!-- Load Esri Leaflet from CDN -->
<script src="https://unpkg.com/esri-leaflet@3.0.12/dist/esri-leaflet.js"></script>
<!-- Load Esri Leaflet Vector from CDN -->
<script src="https://unpkg.com/esri-leaflet-vector@4.2.5/dist/esri-leaflet-vector.js" crossorigin=""></script>
<style>
html,
body,
#map {
padding: 0;
margin: 0;
height: 100%;
width: 100%;
font-family: Arial, Helvetica, sans-serif;
font-size: 14px;
color: #323232;
}
</style>
</head>
<body>
<div id="map"></div>
<script>
const accessToken = "YOUR_ACCESS_TOKEN";
const map = L.map("map").setView([40.34, -76.34], 5);
L.esri.Vector.vectorBasemapLayer("arcgis/dark-gray/base", {
token: accessToken
}).addTo(map);
const trails = L.esri
.featureLayer({
url: "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/Trailheads_Styled/FeatureServer/0"
})
.addTo(map);
trails.query().bounds(function (error, latlngbounds) {
if (error) {
console.log('Error running "Query" operation: ' + error);
}
map.fitBounds(latlngbounds);
});
</script>
</body>
</html>