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Initialize with ES6 Build System

For non-trivial projects, it is recommended to use an ES6-compatible build system like Webpack or Rollup along with a package manager like NPM or Yarn. A setup like this will ensure all necessary files are compiled together into a unified bundle. You won’t need to worry about manually including <script> tags on the page.

You’ll first need to install FullCalendar’s core package as well as any plugins. We’ll demonstrate the DayGrid plugin with NPM:

npm install --save @fullcalendar/core @fullcalendar/daygrid

Then, you’ll need to set up your build system. Setting up a system like Webpack can be a little complicated. Please read some tutorials on the internet or browse the Webpack Example Repo.

In your entrypoint file you will want to write something like this:

import { Calendar } from '@fullcalendar/core';
import dayGridPlugin from '@fullcalendar/daygrid';

document.addEventListener('DOMContentLoaded', function() {
  var calendarEl = document.getElementById('calendar');

  var calendar = new Calendar(calendarEl, {
    plugins: [ dayGridPlugin ]



FullCalendar’s functionality is broken up into “plugins”. You only include a plugin if you need the features it provides, otherwise, you can omit the plugin and prevent it from being compiled into your bundle, saving space. By default, the bare core of FullCalendar does not do anything. You’ll need to use a plugin to display a calendar view at the very least.

For a full list of plugins, visit the Plugin Index »

Before using a plugin, you must install it view npm/yarn. You can install multiple plugins at once:

npm install @fullcalendar/core @fullcalendar/daygrid @fullcalendar/timegrid @fullcalendar/list

When using an ES6 build system, you must pass in the references exported from each plugin module into the plugins array:

import { Calendar } from '@fullcalendar/core';
import dayGridPlugin from '@fullcalendar/daygrid';
import timeGridPlugin from '@fullcalendar/timegrid';
import listPlugin from '@fullcalendar/list';
let calendar = new Calendar(calendarEl, {
  plugins: [ dayGridPlugin, timeGridPlugin, listPlugin ]

Specifying anything else (like an array of strings) will not work!


FullCalendar’s core module, in addition to its plugins, provide stylesheets that must be included on your page. In the above example, you would need to somehow include the following files:


One way to do this is to write a build script that concatenates these together. Then, serve the concatenated file.

Alternatively, you could use a system like Webpack with a css-loader. You would then be able to import your stylesheets from your JavaScript:

import '@fullcalendar/core/main.css';
import '@fullcalendar/daygrid/main.css';
import '@fullcalendar/timegrid/main.css';
import '@fullcalendar/list/main.css';

A different approach is to use SASS. Assuming you have node_modules in your includePaths, you could include the stylesheets from your SASS files.