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 = $array.indexOf($id);

  console.log($index); // ?????

  if ($index !== -1) {
    var $new = $array.splice($index, 1),
      $news = $new.join(',');
    $('#new').html($news)
  }

});