https://moneymiddleeast.com/wp-content/themes/fs-news/layout/js/photoSwipe.js

1$(document).ready(function () {
2
3    var dynamicList = []
4    $('body').on("click", "[photo-swipe]", function (e) {
5        var index = $(this).attr("slide-index");
6        var activeSlider;
7        window[$(this).parents('[dynamic-gallery]').attr('dynamic-gallery')] = []
8        InitializePhotoSwipe($(this).parents('[dynamic-gallery]').addClass('initialized').find('[photo-swipe]'), window[$(this).parents('[dynamic-gallery]').attr('dynamic-gallery')]);
9        activeSlider = window[$(this).parents('[dynamic-gallery]').attr('dynamic-gallery')];
10        $('body').addClass('opened-photo-swipe');
11        // Define object and gallery options
12        var pswp = $('.pswp')[0],
13            options = {
14                index: parseInt(index),
15                bgOpacity: 1,
16                showHideOpacity: true
17            };
18
19        // Initialize PhotoSwipe
20        var gallery = new PhotoSwipe(pswp, PhotoSwipeUI_Default, activeSlider, options);
21        gallery.listen('gettingData', function (index, item) {
22            if (item.w < 3 || item.h < 3) { // unknown size
23                var img = new Image();
24                img.onload = function () { // will get size after load
25                    item.w = this.width; // set image width
26                    item.h = this.height; // set image height
27                    gallery.invalidateCurrItems(); // reinit Items
28                    gallery.updateSize(true); // reinit Items
29                }
30                img.src = item.src; // let's download image
31            }
32        });
33        gallery.init();
34    });
35
36    $('body').on("click", ".pswp__button--close", function () {
37        $('body').removeClass('opened-photo-swipe');
38    });
39    
40
41}); // end document
42function InitializePhotoSwipe(swipe, arr) {
43    var allItems = []
44    // Loop over gallery items and push it to the array
45    $(swipe).each(function () {
46        var link = $(this),
47            item = {
48                src: link.attr('data-img'),
49                w: 2,
50                h: 2
51                // title: "ssssssss"
52            };
53            allItems.push(item);
54    });
55    // to remove duplicates
56    function uniqByKeepFirst(a, key) {
57        var seen = new Set();
58        return a.filter(function (item) {
59            var k = key(item);
60            return seen.has(k) ? false : seen.add(k);
61        });
62    }
63    allItems = uniqByKeepFirst(allItems, function (it) {
64        return it.src;
65    });
66    allItems.map(function(e,i){arr.push(e)})
67
68}