https://www.sammu.uz/new/assets/js/lazyload.js?v=1.0.64

1/*!
2 * Lazy Load - JavaScript plugin for lazy loading images
3 *
4 * Copyright (c) 2007-2019 Mika Tuupola
5 *
6 * Licensed under the MIT license:
7 *   http://www.opensource.org/licenses/mit-license.php
8 *
9 * Project home:
10 *   https://appelsiini.net/projects/lazyload
11 *
12 * Version: 2.0.0-rc.2
13 *
14 */
15!function(t,e){"object"==typeof exports?module.exports=e(t):"function"==typeof define&&define.amd?define([],e):t.LazyLoad=e(t)}("undefined"!=typeof global?global:this.window||this.global,function(t){"use strict";"function"==typeof define&&define.amd&&(t=window);const e={src:"data-src",srcset:"data-srcset",selector:".lazyload",root:null,rootMargin:"0px",threshold:0},r=function(){let t={},e=!1,s=0,o=arguments.length;"[object Boolean]"===Object.prototype.toString.call(arguments[0])&&(e=arguments[0],s++);let i=function(s){for(let o in s)Object.prototype.hasOwnProperty.call(s,o)&&(e&&"[object Object]"===Object.prototype.toString.call(s[o])?t[o]=r(!0,t[o],s[o]):t[o]=s[o])};for(;s<o;s++){i(arguments[s])}return t};function s(t,s){this.settings=r(e,s||{}),this.images=t||document.querySelectorAll(this.settings.selector),this.observer=null,this.init()}if(s.prototype={init:function(){if(!t.IntersectionObserver)return void this.loadImages();let e=this,r={root:this.settings.root,rootMargin:this.settings.rootMargin,threshold:[this.settings.threshold]};this.observer=new IntersectionObserver(function(t){Array.prototype.forEach.call(t,function(t){if(t.isIntersecting){e.observer.unobserve(t.target);let r=t.target.getAttribute(e.settings.src),s=t.target.getAttribute(e.settings.srcset);"img"===t.target.tagName.toLowerCase()?(r&&(t.target.src=r),s&&(t.target.srcset=s)):t.target.style.backgroundImage="url("+r+")"}})},r),Array.prototype.forEach.call(this.images,function(t){e.observer.observe(t)})},loadAndDestroy:function(){this.settings&&(this.loadImages(),this.destroy())},loadImages:function(){if(!this.settings)return;let t=this;Array.prototype.forEach.call(this.images,function(e){let r=e.getAttribute(t.settings.src),s=e.getAttribute(t.settings.srcset);"img"===e.tagName.toLowerCase()?(r&&(e.src=r),s&&(e.srcset=s)):e.style.backgroundImage="url('"+r+"')"})},destroy:function(){this.settings&&(this.observer.disconnect(),this.settings=null)}},t.lazyload=function(t,e){return new s(t,e)},t.jQuery){const e=t.jQuery;e.fn.lazyload=function(t){return(t=t||{}).attribute=t.attribute||"data-src",new s(e.makeArray(this),t),this}}return s});