Javascript accordion with anchors for joomla

I do not know javascript and scss very well so I am struggling with creating an accordion for a page.
I would like two options:

1. When one panel is opened, the other collapses.

2. Every heading of a panel has an anchor, and when i go to the link www.example.com#heading1, the page scrolls to the heading1 and opens its section.

It used to work in this extension, but the anchors disappeared suddenly (i’ve checked in Chrome and Ff).

For now i found in internet this accordion:

<div class="accordion-container">
  <div class="ac">
    <h2 class="ac-q" tabindex="0">Lorem ipsum dolor sit amet.</h2>
    <div class="ac-a">
      <p>Nulla et sodales nisl. Nam auctor quis odio eu congue. Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
    </div>
  </div>

  <div class="ac">
    <h2 class="ac-q" tabindex="0">Lorem ipsum dolor sit amet.</h2>
    <div class="ac-a">
      <p>Nulla et sodales nisl. Nam auctor quis odio eu congue. Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
    </div>
  </div>

  <div class="ac">
    <h2 class="ac-q" tabindex="0">Lorem ipsum dolor sit amet.</h2>
    <div class="ac-a">
      <p>Nulla et sodales nisl. Nam auctor quis odio eu congue. Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
    </div>
  </div>
</div>  

<script>
"use strict";
! function (i)
{
  function u(o, l)
  {
    var c = this,
      t = {
        init: function ()
        {
          if (Array.isArray(o)) return o.length && o.map(function (e)
          {
            return new u(e, l)
          }), !1;
          this.options = h(
          {
            duration: 600,
            itemNumber: 0,
            aria: !0,
            closeOthers: !0,
            showItem: !1,
            elementClass: "ac",
            questionClass: "ac-q",
            answerClass: "ac-a",
            targetClass: "ac-target",
            onToggle: function () {}
          }, l), this.container = document.querySelector(o), this.elements = this.container.querySelectorAll("." + this.options.elementClass);
          var e = this.options,
            t = e.aria,
            n = e.showItem,
            i = e.itemNumber;
          t && this.container.setAttribute("role", "tablist");
          for (var s = 0; s < this.elements.length; s++)
          {
            var r = this.elements[s];
            r.classList.add("js-enabled"), this.hideElement(r), this.setTransition(r), this.generateID(r), t && this.setARIA(r)
          }
          if (n)
          {
            var a = this.elements[0];
            "number" == typeof i && i < this.elements.length && (a = this.elements[i]), this.toggleElement(a, !1)
          }
          c.attachEvents()
        },
        setTransition: function (e)
        {
          var t = this.options,
            n = t.duration,
            i = t.answerClass,
            s = e.querySelector("." + i),
            r = a("transition");
          s.style[r] = n + "ms"
        },
        generateID: function (e)
        {
          e.setAttribute("id", "ac-".concat(s)), s++
        },
        setARIA: function (e)
        {
          var t = this.options,
            n = t.questionClass,
            i = t.answerClass,
            s = e.querySelector("." + n),
            r = e.querySelector("." + i);
          s.setAttribute("role", "tab"), s.setAttribute("aria-expanded", "false"), r.setAttribute("role", "tabpanel")
        },
        updateARIA: function (e, t)
        {
          var n = this.options.questionClass;
          e.querySelector("." + n).setAttribute("aria-expanded", t)
        },
        callSpecificElement: function (e)
        {
          for (var t = e.target, n = this.options, i = n.questionClass, s = n.targetClass, r = n.closeOthers, a = 0; a < this.elements.length; a++)
            if (this.elements[a].contains(t))
            {
              (t.className.match(i) || t.className.match(s)) && (e.preventDefault(), r && this.closeAllElements(a), this.toggleElement(this.elements[a]));
              break
            }
        },
        hideElement: function (e)
        {
          var t = this.options.answerClass;
          e.querySelector("." + t).style.height = 0
        },
        toggleElement: function (e, t)
        {
          var n, i = !(1 < arguments.length && void 0 !== t) || t,
            s = this.options,
            r = s.answerClass,
            a = s.aria,
            o = s.onToggle,
            l = e.querySelector("." + r),
            c = l.scrollHeight;
          e.classList.toggle("is-active"), i || (l.style.height = "auto"), 0 < parseInt(l.style.height) ? (n = !1, requestAnimationFrame(function ()
          {
            l.style.height = 0
          })) : (n = !0, requestAnimationFrame(function ()
          {
            l.style.height = c + "px"
          })), a && this.updateARIA(e, n), i && o(e, this.elements)
        },
        closeAllElements: function (e)
        {
          for (var t = this.options.aria, n = this.elements.length, i = 0; i < n; i++)
            if (i != e)
            {
              var s = this.elements[i];
              s.classList.contains("is-active") && s.classList.remove("is-active"), t && this.updateARIA(s, !1), this.hideElement(s)
            }
        },
        resizeHandler: function ()
        {
          for (var e, t, n = this.options, i = n.elementClass, s = n.answerClass, r = this.container.querySelectorAll("." + i + ".is-active"), a = 0; a < r.length; a++) t = r[a].querySelector("." + s), requestAnimationFrame(function ()
          {
            t.style.height = "auto", e = t.offsetHeight, requestAnimationFrame(function ()
            {
              t.style.height = e + "px"
            })
          })
        },
        clickHandler: function (e)
        {
          this.callSpecificElement(e)
        },
        keydownHandler: function (e)
        {
          13 === e.keyCode && this.callSpecificElement(e)
        }
      };
    this.attachEvents = function ()
    {
      var e = t;
      e.clickHandler = e.clickHandler.bind(e), e.keydownHandler = e.keydownHandler.bind(e), e.resizeHandler = e.resizeHandler.bind(e), e.container.addEventListener("click", e.clickHandler), e.container.addEventListener("keydown", e.keydownHandler), i.addEventListener("resize", e.resizeHandler)
    }, this.detachEvents = function ()
    {
      var e = t;
      e.container.removeEventListener("click", e.clickHandler), e.container.removeEventListener("keydown", e.keydownHandler), i.removeEventListener("resize", e.resizeHandler)
    };
    var a = function (e)
      {
        return "string" == typeof document.documentElement.style[e] ? e : (e = n(e), e = "webkit".concat(e))
      },
      n = function (e)
      {
        return e.charAt(0).toUpperCase() + e.slice(1)
      },
      h = function (e, t)
      {
        for (var n in t) e[n] = t[n];
        return e
      };
    i.requestAnimationFrame = i.requestAnimationFrame || i.webkitRequestAnimationFrame || function (e)
    {
      i.setTimeout(e, 1e3 / 60)
    }, t.init()
  }
  var s = 0;
  "undefined" != typeof module && void 0 !== module.exports ? module.exports = u : i.Accordion = u
}(window);

</script>    

<script>
  new Accordion('.accordion-container'); 
</script>

I can insert in in an article and it works. But nothing happens when I try to add an anchor. I suppose it requires additional javascript.

I have found an answer to this here, but I still do not see anchors working when i run it locally, neither i can insert it into joomla article properly.

I also tried many of these accordions. But only this one has anchors. But it doesn’t work, when I try to edit the text or add fields.

I would appreciate any help very much, or some links to guides, thank you!