Как правильно переписать jq функцию на js?

Question

[cracker-test]

Пытаюсь переписать jq функцию на чистый js, но получаю ошибку Uncaught DOMException: Document.querySelectorAll: '.main-slider[object HTMLDivElement]' is not a valid selector. Подскажите, как исправить

let mainSlider = [];
let navSlider = [];

let theraphyElements = document.querySelectorAll(".theraphy-swiper");

$(".theraphy-swiper").each(function (index, value) {
  var mainSliderSelector = ".main-slider" + index;
  var navSliderSelector = ".nav-slider" + index;

  mainSliderOptions.navigation.nextEl = ".swiper-arrow-next" + index;
  mainSliderOptions.navigation.prevEl = ".swiper-arrow-prev" + index;

  navSliderOptions.on.click = function () {
    mainSlider[index].autoplay.stop();
  };

  mainSlider[index] = new Swiper(mainSliderSelector, mainSliderOptions);
  navSlider[index] = new Swiper(navSliderSelector, navSliderOptions);

  mainSlider[index].controller.control = navSlider[index];
  navSlider[index].controller.control = mainSlider[index];
});

let mainSlider = [];
let navSlider = [];

let theraphyElements = document.querySelectorAll(".theraphy-swiper");

theraphyElements.forEach(function (index, value) {
  let mainSliderSelector = ".main-slider" + index;
  let navSliderSelector = ".nav-slider" + index;

  mainSliderOptions.navigation.nextEl = ".swiper-arrow-next" + index;
  mainSliderOptions.navigation.prevEl = ".swiper-arrow-prev" + index;

  navSliderOptions.onClick = function () {
    mainSlider[index].autoplay.stop();
  };

  mainSlider[index] = new Swiper(mainSliderSelector, mainSliderOptions);
  navSlider[index] = new Swiper(navSliderSelector, navSliderOptions);

  mainSlider[index].controller.control = navSlider[index];
  navSlider[index].controller.control = mainSlider[index];
});

Answer 1

[Алексей Уколов]

theraphyElements.forEach(function (index, value) {

У forEach другой порядок аргументов - сначала идёт value, потом index.

Comments

[cracker-test]

не совсем понял, что именно мне поменять нужно

[Samedi_Da_Kapa]

cracker-test, попробуй вот так:

theraphyElements.forEach(function (value, index) {