Creating custom Highcharts files#

Thanks to ES modules you can create your own custom Highcharts package files. A benefit of using a custom file can be optimization of browser load speed due to lower filesize and less files to request.

Follow the steps below to get started.

Install Highcharts#

Go to the highcharts/highcharts repository and click on "Code" and select "Download ZIP". Once the zip file is downloaded, unpack it to a desired location.

Open the unpacked folder highcharts-master in a command line or terminal and run npm install to install any required dependencies. On Macs this step requires the Installation of Xcode app or the Command Line Tools, which you run with xcode-select --install.

Create a custom master file#

Go in your editor to the unpacked folder highcharts-master/js/masters and create a new file, named for example custom.src.js. In this example we want a basic line chart with some interactivity. To achieve this we will need a setup that lists all the needed ES modules like this:

'use strict';
import Highcharts from '../Core/Globals.js';
import '../Core/Renderer/SVG/SVGRenderer.js';
import '../Core/Chart/Chart.js';
import '../Series/LineSeries.js';
import '../Core/Interaction.js';
export default Highcharts;

Modify the setup according to your needs, then proceed with the next step. Please note that the order of the imported ES modules should match the dependencies of each file. Optional additions therefore should come last.

For similar examples take a look at the other master files.

Create the custom package file#

Run npx gulp scripts to build all package files out of the master files. For running the automated tests in addition, run npm test.

In our example the new file js/masters/custom.src.js becomes the new package file code/custom.src.js.

You can pick the package file code/custom.src.js and use it in your project.

Use your custom package file#

According to our installation guide you can reference your custom package file in a script tag:

<html>
<head>
<script src="custom.src.js"></script>
</head>
<body>
<div id="container"></div>
<script>
Highcharts.chart('container', {
series: [{
type: 'line',
data: [1, 32, 42]
}]
});
</script>
</body>
</html>