https://earthcharter.org/wp-content/themes/blankslate-child/loadmore.js?ver=6.9.5

1jQuery(function($){
2    $('.loadmore').click(function(){
3
4        var button = $(this),
5            data = {
6                'action': 'loadmore',
7                'query': loadmore_params.posts,
8                'page' : loadmore_params.current_page
9            };
10
11        $.ajax({
12            url : loadmore_params.ajaxurl, // AJAX handler
13            data : data,
14            type : 'POST',
15            beforeSend : function ( xhr ) {
16                button.text('Loading...');
17            },
18            success : function( data ){
19                if( data ) {
20                    button.text( 'Show more' ).prev().after(data);
21                    loadmore_params.current_page++;
22                    if ( loadmore_params.current_page == loadmore_params.max_page )
23                        button.remove();
24
25                } else {
26
27                    button.remove();
28                }
29            }
30        });
31    });
32});