JSFiddle - React, Tailwind, and code Playground

by yoowordpress

HTML

<a href="javascript:void(0);" data-id="555" class="start">Start</a>
<br>
<div id="old">666,888,555,444</div>
<hr>
<div id="new"></div>

JavaScript

$(document).on('click', '.start', function(e) {
  e.preventDefault();
  var $el = $(this),
    $id = $el.data('id'),
    $data = $('#old').html(),
    $array = $data.split(','),
    $index = $array.indexOf(String($id));

  function remove(array, element) {
    const index = array.indexOf(element);
    array.splice(index, 1);
  }

  remove($array, String($id));
  console.log($array.toString());


});