Стефан

new Splide( '#splide', {
  type   : 'loop',
  perPage: 3,
} );

new Splide( '.splide', {
  type   : 'loop',
  perPage: 3,
} );

const boolean = Object.values(obj).indexOf('') !== -1

$(".cart-info__promo").on("keyup input", (function () {
        var t;
        if (t = $(this).val(), $.ajax({
                type: "GET",
                url: "../db/promo.php",
                data: {
                        promocode: t
                },
                async: !1,
                dataType: "json",
                success: function (t) {
                        s = t
                }
        }), "true" == s.isCorect) {
                if (o.isPromo) return;
                $(".cart-info__price-price").addClass("promo-done"),
                o.promo = o.price * (1 - s.procent / 100),
                $(".cart-info__price-promo").text(`$ {
                        o.promo
                }
                $ {
                        o.currency
                }`),
                o.isPromo = !0
        } else $(".cart-info__price-price").removeClass("promo-done"),
        $(".cart-info__price-promo").text(""),
        o.isPromo = !1
}))

start_server = websockets.serve(server.ws_handler, 'localhost', 8765, ssl=ssl_context)