JSFiddle - React, Tailwind, and code Playground

Customizing the Toolbar

by Flexmonster Pivot Table

HTML

<link rel="stylesheet" href="https://s3.amazonaws.com/flexmonster/2.3/demo.css">
<script src="https://cdn.flexmonster.com/flexmonster.js"></script>

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

CSS

h2 {
  text-align: center;
}

p {
  font-size: 15px;
  line-height: 1.5;
  padding-right: 10px;
  padding-left: 10px;
}

a {
  color: #00a45a;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
    font-size: 105%;
    color: #DF3800;
    background-color: #f5f5f5;
    padding: 1px 4px;
    font-family: monospace !important;
    border-radius: 4px;
}

ol.styledList {
    list-style: none;
    counter-reset: item;
    font-size: 15px;
    line-height: 1.5;
    padding-left: 25px;
}

ol.styledList > li::before {
    content: counter(item);
    counter-increment: item;
    display: block;
    font-weight: bold;
    color: #df3800;
    position: absolute;
    margin: 0;
    margin-left: 9px;
    left: 0;
}

JavaScript

let pivot = new Flexmonster({
  container: "pivot-container",
  componentFolder: "https://cdn.flexmonster.com/",
  toolbar: true,
  height: 400,
  global: {
    localization: "loc/es.json",
  },
  report: {
    dataSource: {
      filename: "data/data.csv",
    },
    localization: {
      toolbar: {
        formatNumbers: "Custom",
      },
    },
  },
  beforetoolbarcreated: customizeToolbar,
})

function customizeToolbar(toolbar) {
  let tabs = toolbar.getTabs()
  toolbar.getTabs = function () {
    tabs.unshift({
      id: "fm-tab-format-cells",
      title: this.Labels.formatNumbers,
      handler: this.formatCellsHandler,
      icon: this.icons.format_number,
    })
    return tabs
  }
  toolbar.updateLabels = function (labels) {
    FlexmonsterToolbar.prototype.updateLabels.call(this, labels)
    this.setText(
      document.querySelector("#fm-tab-format-cells > a > span"),
      this.Labels.formatNumbers,
    )
  }
}