This section will guide you to setup basic google maps. for more information checkout .
Google Maps will not work without API Key. please create one before implementing maps
<script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap"
async defer></script>
<div id="map" style="height:450px;width:100%"></div>
var map;
function initMap() {
map = new google.maps.Map(document.getElementById('map'), {
center: {lat: -34.397, lng: 150.644},
zoom: 8
});
}