It's an example project that combines Typescript-based source files with a Rollup build system. We want our bundles to be smaller and more robust with Rollup, but we also want to write our source code in Typescript.
Clone this repository, and using a terminal, run the following in the project root:
npm install && npm run build
See package.json for more information about these scripts, but it's essentially doing the following:
- Uses the Typescript compiler to convert Typescript to ES5 code + ES6 module statements (import/export).
- Uses Rollup to bundle everything together into one JS file, eliminating unused code.
- Does a simple clean of the /dist directory with Rimraf