https://www.nakivo.com/res/js/new/sliders-c.js

1function sliders (elems, slides) {
2  if (document.querySelector(elems)) {
3    const sliders = document.querySelectorAll(elems);
4
5    sliders.forEach((item, i) => {
6      // create and add new class to slider wrap
7      let newClass = `${elems}--${i + 1}`;
8      item.classList.add(newClass.slice(1));
9      // init
10      new Swiper(`${newClass} .swiper-container`, {
11        slidesPerView: slides,
12        spaceBetween: 30,
13        watchSlidesProgress: true,
14        watchSlidesVisibility: true,
15        lazy: {
16          loadPrevNext: true,
17        },
18        autoplay: {
19          delay: 7000
20        },
21        speed: 300,
22        loop: true,
23        autoHeight: false,
24        simulateTouch: true,
25        grabCursor: true,
26        navigation: {
27          nextEl: `${newClass} .swiper-button-next`,
28          prevEl: `${newClass} .swiper-button-prev`,
29        },
30        pagination: {
31          el: `${newClass} .swiper-pagination`,
32          clickable: true
33        },
34        breakpoints: {
35          0: {
36            slidesPerView: 1
37          },
38          767: {
39            slidesPerView: (slides >= 2) ? 2 : 1
40          },
41          991: {
42            slidesPerView: slides
43          }
44        }
45      });
46    });
47  }
48}