JSFiddle - React, Tailwind, and code Playground

by Flexmonster Pivot Table

HTML

<script src="https://cdn.flexmonster.com/flexmonster.js"></script>

<div id="pivot-container"></div>

JavaScript

var pivot = new Flexmonster({
  container: "pivot-container",
  componentFolder: "https://cdn.flexmonster.com/",
  toolbar: true,
  report: {
    options: {
      configuratorActive: true,
    },
    dataSource: {
      type: "csv",
      filename: "https://cdn.flexmonster.com/data/data.csv",
    }
  }
});
pivot.on('fieldslistopen', function() {
  const applyBtn = document.querySelector('#fm-pivot-view > div.fm-fields-opened button.fm-ui-btn-dark');
  applyBtn.addEventListener('mouseup', (event) => {
    event.stopImmediatePropagation();
    //your custom logic here
  })
});