Add hillshading

Adds raster hillshading to a map

<!DOCTYPE html>
    <meta charset='utf-8' />
    <title>Add hillshading</title>
    <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
    <script src=''></script>
    <link href='' rel='stylesheet' />
        body { margin:0; padding:0; }
        #map { position:absolute; top:0; bottom:0; width:100%; }

<div id='map'></div>
mapboxgl.accessToken = '<your access token here>';
var map = new mapboxgl.Map({
    container: 'map',
    style: 'mapbox://styles/mapbox/cjaudgl840gn32rnrepcb9b9g', // the outdoors-v10 style but without Hillshade layers
    center: [-119.5591, 37.715],
    zoom: 9

map.on('load', function () {
    map.addSource('dem', {
        "type": "raster-dem",
        "url": "mapbox://mapbox.terrain-rgb"
        "id": "hillshading",
        "source": "dem",
        "type": "hillshade"
    // insert below waterway-river-canal-shadow;
    // where hillshading sits in the Mapbox Outdoors style
    }, 'waterway-river-canal-shadow');

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