Wordpress Ajax load posts js file

load-more-posts.js

jQuery(function($){
    var ajaxurl = load_more_posts_access.ajaxurl; // from localized script
    var page = 2; //number of next page 
    var loadMore = function(){
        if($(window).scrollTop() == $(document).height() - $(window).height()){ // if reached the end of the page
            var data = {
                'action':'load_more_posts', // ajax action 
                'paged': page,//page number
                'security': load_more_posts_access.security,//security 
            };
            $('.load').show(); // show loader 
            $.post(ajaxurl, data,function(response){
                var $res;
                // console.log(response)
                if(response.data)  //if there is posts 
                    $res = response.data;
                else {
                    $res = '<div><code>you have reached the end, want to see more subscribe to the newsletter</code></div>';
                    $(window).off('scroll',loadMore);
                }
                $load = $(`<div class="load-${page}"></div>`);
                $load.appendTo('.articles-list').hide();
                $load.append($res).fadeIn(500);
                page++; // next page number
                $('.load').hide(); // hide loader
            });
        }
    };

    $(window).scroll(loadMore); // add event on window scroll
});