How to show marker inside polygon only. If marker outside polygon should not be shown on googlemap

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jQuery

Hi,

My Question is how to find lat long inside the drawn polygon or not i have mutliple records in my database , when app started then all markers visible and when we draw shape and apply then only marker inside the polygon show ,,this is very important for me please help me.

Thanks in advance

What I have tried:

$("#poly_apply").on("click", function (e) {
        $(".loader-container").show();
        records = [];
        polySides = myaary.length - 1;
        for (var i = 0; i < myaary.length; i++) {
            latarr.push(myaary[i].lat());
            lanarr.push(myaary[i].lng());
        };
        var minlt = Math.min.apply(null, latarr);
        var maxlt = Math.max.apply(null, latarr);
        var minln = Math.min.apply(null, lanarr);
        var maxln = Math.max.apply(null, lanarr);
        var vald = {
            mn_lt: minlt,
            mx_lt: maxlt,
            mn_ln: minln,
            mx_ln: maxln
        }

        $.getJSON("/MapSearch/Get_Result/", vald, function (data) {
            var filtered = []; 
           for (var j = 0; j < records.length; j++) {
            var item = records[j];

            if (pointInPolygon(polySides, latarr, lanarr, item.lat, item.lng)) {
              
 var marker = new google.maps.Marker({
                        position: new google.maps.LatLng(item.lat, item.lng),
                        icon: img.jpg,
                        title: 'Click me',
                        map: map                       
                    });
            }
        }
        });
    });
function pointInPolygon(polySides, polyX, polyY, x, y) {
    var j = polySides - 1;
    oddNodes = 0;
    for (i = 0; i < polySides; i++) {
        if (polyY[i] < y && polyY[j] >= y || polyY[j] < y && polyY[i] >= y) {
            if (polyX[i] + (y - polyY[i]) / (polyY[j] - polyY[i]) * (polyX[j] - polyX[i]) < x) {
                oddNodes = !oddNodes;
            }
        }
        j = i;
    }
    return oddNodes;}