const CONFIGURATION = { "defaultTravelMode": "DRIVING", "distanceMeasurementType": "IMPERIAL", "initialDestinations": [ { "placeId": "ChIJPcr187JrkFQRLApO8QKP8ZM", "travelMode": "PUBLIC_TRANSIT" }, { "placeId": "ChIJoZv0y8hqkFQRQcB9L4Wi1EM", "travelMode": "WALKING" } ], "mapOptions": {"center":{"lat":47.6115,"lng":-122.3222},"fullscreenControl":true,"mapTypeControl":false,"streetViewControl":false,"zoom":14,"zoomControl":true,"maxZoom":20,"mapId":""}, "mapsApiKey": "YOUR_API_KEY_HERE" }; function initMap() { new Commutes(CONFIGURATION); }