Example rollup utils lib

npm install

npm run build builds the library to dist, generating three files:

• dist/rollup-utils-lib.cjs.js A CommonJS bundle, suitable for use in Node.js, that requires the external dependency. This corresponds to the "main" field in package.json
• dist/rollup-utils-lib.esm.js an ES module bundle, suitable for use in other people's libraries and applications, that imports the external dependency. This corresponds to the "module" field in package.json
• dist/rollup-utils-lib.umd.js a UMD build, suitable for use in any environment (including the browser, as a <script> tag), that includes the external dependency. This corresponds to the "browser" field in package.json

npm run dev builds the library, then keeps rebuilding it whenever the source files change using rollup-watch.

Variations

• babel — illustrates writing the source code in ES2015 and transpiling it for older environments with Babel
• buble — similar, but using Bublé which is a faster alternative with less configuration
• TypeScript — uses TypeScript for type-safe code and transpiling