Gadget-breadcrumbs.js

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$(document).ready(function() {
	
	function worldCat( pageCats ) {
		var world;
		for (var i = 0; i < pageCats.length; i++) {
			if ( pageCats[i].indexOf('Survival ') > -1) {
	    		world = pageCats[i] + '';
	        	return world;
			}
		}
		return "";
	}
	
	var config =  mw.config.get([
		"wgIsArticle",
		"wgNamespaceNumber",
		"wgCategories",
		"wgTitle"
		]);
	
	if ( config.wgIsArticle && ( config.wgNamespaceNumber == 0 && config.wgTitle !== "Main Page")) {
		//var namespace = mw.config.get('wgFormattedNamespaces')[mw.config.get('wgNamespaceNumber')];
		var serverInfo = "",
			siteContent = "",
			type = "",
			list = "",
			typeCategories = [
				"Stations",
				"Builds",
				"Events",
				"Settlements",
				"Groups",
				"Phenomenon",
				"Projects",
				"Worlds"
				],
			pageCategories = config.wgCategories,
			links = [],
			crumbs = "<a href='/wiki/Main_Page'>Main Page</a>";
		
		if (pageCategories.includes('Site Content')) {
			links.push( "Site Content" );
		}	
		
		if (pageCategories.includes('Server Information')) {
			links.push( "Server Information" );
		}
		
		var world = '';
		if ( worldCat( pageCategories ) !== "") {
			links.push( worldCat( pageCategories ) );
		}
		
		if (pageCategories.includes('Bases')) {
			links.push( "Builds" );
			links.push( "Bases" );
		}
		else
		{
			var typesOnPage = pageCategories.filter(function(x){ return typeCategories.includes(x) });
			if ( typesOnPage.length == 1) {
				links.push( typesOnPage[0] + "" );
			}
			else if (typesOnPage.length > 1) {
				console.log('Breadcrumbs: Page has more than one type category');
				links.push( typesOnPage[0] + "" );
			}
		}
		
		if (pageCategories.includes('Lists')) {
			links.push( "Lists" );
		}
		
		links.forEach( function( elem ) {
			crumbs += '<a href="/wiki/Category:' + elem + '">' + '<span>' + elem + '</span>' + '</a>';
		});
		
		if( links !== "undefined") {
		
			$('.top .indicators').prepend('<div id="breadcrumbs"></div>');
			$('#breadcrumbs').html('' + crumbs + '<span>' + config.wgTitle + '</span>' );
			
		}
		else { console.log(' Breadcrumbs: links is undefined '); }
	
	}
		
});

MediaWiki

Gadget-breadcrumbs.js