Add a class to menu items that match the current URL of the page (jQuery)

activeMenu.js

jQuery(function(){
    var page = window.location.pathname,
    	find = new RegExp(page == '/' ? window.location.origin + '/?jQuery' : page.replace(/\/jQuery/,''));
    jQuery('nav a').each(function(){
        if(find.test(this.href.replace(/\/jQuery/,''))){
            jQuery(this).addClass('active');
        }
    });
});