Tree Shaking: Shipping Only the Code You Use
Tree shaking is a build-time optimization that eliminates unused code. For component libraries, it means importing a `Button` won't bundle the unused `DataGrid`. The main footgun is side effects: code that modifies global state can't be safely removed.
Tree shaking is a build-time optimization that eliminates unused code from your final bundle. It's critical for component libraries, where importing a single `Button` shouldn't include the entire library. This keeps your app lean. The main footgun is misconfigured side effects: if a file modifies the global scope (like injecting CSS), it might be incorrectly removed unless you explicitly mark it in your `package.json`, leading to broken styles or functionality in production.
Read the original → webpack.js.org
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