Add Markers to Show Locations in Google Maps

var map; function initMap() { var mapLayer = document.getElementById("map-layer"); var centerCoordinates = new google.maps.LatLng(50.84174279563503,7.968511224207104); var defaultOptions = { center: centerCoordinates, zoom: 10 } map = new google.maps.Map(mapLayer, defaultOptions); var location = new google.maps.LatLng(50.839195, 7.962965); var marker = new google.maps.Marker({ position: location, map: map }); var location = new google.maps.LatLng(50.807407, 7.893837); var marker = new google.maps.Marker({ position: location, map: map }); var location = new google.maps.LatLng(50.807407, 7.893837); var marker = new google.maps.Marker({ position: location, map: map }); }