Add `sideEffects: false` to the `package.json`
Vestride opened this issue · comments
https://webpack.js.org/guides/tree-shaking/#mark-the-file-as-side-effect-free
From https://bundlephobia.com/package/shufflejs@6.0.0
Exports analysis is available only for packages that export ES Modules and are side-effect free.
This package exports ES6 modules, but isn't marked side-effect free.
Done in #399