Javascript initialize code

var input=[];
    var marker_uluru=createMapMarker(new google.maps.LatLng(-25.363882,131.044922),'Uluru Rock');
    var marker_mermaid=createMapMarker(new google.maps.LatLng(-28.0440,153.4370),'Mermaid Beach');
    var marker_sydneyopera=createMapMarker(new google.maps.LatLng(-33.8587,153.4370),'Sydney Opera House');
    var marker_bondibeach=createMapMarker(new google.maps.LatLng(-33.8910,151.2777),'Bondi Beach');
    var marker_reef=createMapMarker(new google.maps.LatLng(-18.2861,147.7000),'Great Barrier Reef');
    input.push(marker_uluru);
    input.push(marker_mermaid);
    input.push(marker_sydneyopera);
    input.push(marker_bondibeach);
    input.push(marker_reef);
    var result=mapFunc(addMarkerToCurrentMap,input);
    var uluru_data=getLatitudeAndLongitudeFromMarker(marker_uluru);
    console.log('uluru data latitude '+uluru_data.latitude);
    console.log('uluru data longitude '+uluru_data.longitude);
    var arr=[new google.maps.LatLng(3.1357,101.6880),new google.maps.LatLng(1.3000,103.8000),new google.maps.LatLng(-6.2000,106.8000),new google.maps.LatLng(-7.2653,112.7425),new google.maps.LatLng(-31.9522,115.8589)];
    //The array above is no longer useful once the polyline has been created,you can obtain this array using getArray on the polyline but cannot mutate it
    var mpath=createPolyline(arr,'#ffb636');
    addPolylineToMap(mpath,map);
    var pathArr=mpath.getPath();
    addToPolyline(mpath,new google.maps.LatLng(-34.9290,138.6010));
    addToPolyline(mpath,new google.maps.LatLng(-9.5136,147.2188));
    removeFromPolyline(mpath);
    removeFromPolylineAt(mpath,0);
    //When creating a polygon there is no need to specify the polygon's closing side because google maps will do it for you
    var polyPoints=[];
    polyPoints.splice(0,0,new google.maps.LatLng(-34.9290,138.6010),new google.maps.LatLng(-37.8136,144.9631),new google.maps.LatLng(-27.4679,153.0278));
    console.log(polyPoints.length);
    var polygonOptions=new configurePolygonOptions('#FF0000',2,0.8,'#FF0000',0.35);
    polygonOptions.setPaths(polyPoints);
    var pgon=createPolygon(polygonOptions);
    addPolygonToMap(pgon);
    console.log('polygon has been added');
    var rect=new createRectangle('#FF0000',2,0.8,'#FF0000',0.35);
    rect.setBounds(new google.maps.LatLngBounds(new google.maps.LatLng(23.1333,113.2667),new google.maps.LatLng(14.5833,120.9667)));
    rect.setMap(map);
    rect.setEditable(true);
    rect.setDraggable(true);
    rect.setGeodesic(true);
    var _rect=new google.maps.Rectangle(rect);
    //To modify any property of the rectangle or polygon,you need to use the object we built using the constructor functions,which we must obtain using built-in methods of the Rectangle,Polygon and other objects.
    //To modify anything you can also use _rect.setMap() and circle.setMap()etc...

    //get Bounds is a point(south-east and north-west)
    console.log('rectangle has been added');
    var circe=new configureCircle('#FF0000',2,0.8,'#FF0000',0.35);
    circe.setMap(map);
    circe.setCenter(map.center);
    circe.setRadius(192241.45);
    circe.setEditable(true);
    circe.setDraggable(true);
    var circle=new google.maps.Circle(circe);
    console.log('Circle has been added');