SwiperJS launch with check

check-for-swiperJS.js

const nameOfConst = document.querySelector('.swiper-class');
if (nameOfConst) {
    let someName = new Swiper(nameOfConst, {
        // Optional parameters
        slidesPerView: 1,
        loop: true,
          
        // If we need pagination
        pagination: {
            el: '.swiper-pagination',
        },
    
        // Navigation arrows
        navigation: {
            nextEl: '.swiper-button-next',
            prevEl: '.swiper-button-prev',
        },
        // And if we need scrollbar
        scrollbar: {
            el: '.swiper-scrollbar',
        },
    })
}