javascript: keystroke

gistfile1

console.log('EASTER EGG');
        var keys = [];
        var thiz= this;
        if (window.addEventListener) {
            window.addEventListener("keydown", function(e){
                keys.push( e.keyCode );
                console.log(keys);
                if(keys.toString().indexOf('72,65,82,76,69,77,83,72,65,75,69') >= 0){
                    console.log('HARLEM SHAKE');
                    keys = [];
                } else if(keys.toString().indexOf('65,74,65,88') >= 0){
                    Loading.toggle();
                    keys = [];
                } else if(keys.toString().indexOf('65,74,65,88') >= 0){
                    console.log('=====================================');
                    keys = [];
                }

            }, true);
        }