Simple marker on google map without getting api key

google-map.js

// In html
// <script src="https://maps.googleapis.com/maps/api/js?sensor=false"></script>
// In js
var map = {
    init: function(){
        var mlatlang = new google.maps.LatLng(33.8633401, -117.8517839);
        var mapOptions = {
            center: mlatlang,
            zoom: 15,
            scrollwheel: false
        };
        var marker = new google.maps.Marker({
            position: mlatlang,
            title: 'Some title'
        });
        var map = new google.maps.Map(document.getElementById('map'),
            mapOptions);
        marker.setMap(map);
    }
}

$(function(){
    map.init();
});