jQuery snippet to grab latest discourse forum posts and display them inside a container uses TBS classes

Fetch Discourse Topics

// usage
var forumURL = 'http://forums.com';
$('#discourse-latest-container').getDiscourseTopics(forumURL, 'latest');

// fetch discourse items
(function($) {
  jQuery.fn.getDiscourseTopics = function (url, page) {
		// load forum topics
		if($(this).exists()) {
			$this = $(this);
			$.getJSON(url + "/" + page + ".json", function (data) {
				var topics = data.topic_list.topics;
				//console.log(topics); //uncomment this for debug
				var limit = 6; // topics.length;
				var result = '<nav class="list-group list-group-flush">';
				for (var i = 0; i < limit; i++) {
					result += '<a class="list-group-item" href="' + url + '/t/' + (topics[i].slug) + '/' + (topics[i].id) + '"><span class="badge">' + (topics[i].posts_count) + '</span> <h5>' + (topics[i].fancy_title) + '</h5></a>';
				}
				result += '</nav>';
				$this.html(result);
			});
		}
	};
})(jQuery);

Any tutorial or example on how to use it as it's not working for me :(