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How to manipulate div class on rendered element using map() javascript

How do I use javascript to add class=open into rendered <div class="card flex-row"> using map().

On the inspect element browser i see the reaction on click but that action didn't adding the determined class

Here is my code :

function fetchingData() {
  fetch("http://localhost:3001/quote/sendquote")
    .then((response) => {
      if (!response.ok) {
        throw Error;
      }
      return response.json();
    })
    .then((data) => {
      console.log(data);
      const rend = data.person
        .map((data) => {
          return `
<div class='card flex-row'>
          <img src='https://png.pngtree.com/png-vector/20191023/ourlarge/pngtree-user-vector-icon-with-white-background-png-image_1849343.jpg' class='book'>
          <div class='flex-column info'>
            <div class='title' id="person">Dear ${data.frstname}</div>
            <div class='author'></div>
            <div class='hidden bottom summary'>
              <input id="quote" type="text" value="">
            </div>
          </div>
          <div class='flex-column group'>
            <div class='members'>
              <span class='current'>14</span> /
              <span class='max'>30</span>
            </div>
            <div class='hidden bottom'>
              <button class='simple'>Submit</button>
            </div>
          </div>
        </div>`;
        })
        .join("");
      console.log(rend);
      document.querySelector(".center").insertAdjacentHTML("afterbegin", rend);
    })
    .catch((err) => {
      console.log("rejected", err);
    });

}
fetchingData();
<div class='container'>
  <div class='center list flex-column'>
  </div>
</div>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js'></script>
<script>
  let old = $(".card").get(0);
  $(".card").click(function() {
    if (old != null && $(old).hasClass("open")) $(old).toggleClass("open");
    $(this).toggleClass("open");
    old = this;
  });
</script>
<script>
</script>

about 4 years ago · Juan Pablo Isaza
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