The jimu libraries that come with Experience Builder can be used to include a variety of functionality into your widget. In addition to this functionality, third-party libraries can be included and used within a custom Experience Builder widget. This sample demonstrates how to install a third-party library (react-data-grid) via npm and use it within a custom Experience Builder widget.
How to use the sample
Clone the sample repo and copy this widget's folder (within widgets) to the client/your-extensions/widgets folder of your Experience Builder installation.
How it works
The react-data-grid library was installed via npm - see the reference to it in the package.json file. After downloading the sample, in a terminal browse to the root of the widget directory and run npm install. This will look at the package.json file and install react-data-grid since it's listed there.
Now that the files are in place, the widget can refer to the library using it's npm package name - see in widget.tsx the import line:
import * as ReactDataGrid from "react-data-grid";This method of installing a third-party library, via npm, should be used if this library is planned on only being used by a single widget. See the Using Third-Party Libraries guide topic for information about how to use this pattern and other ways to use third-party libraries.