What are the differences between tree shaking and code splitting?

What are the differences between tree shaking and code splitting?

Tree shaking and code splitting are both optimization techniques in JavaScript. Tree shaking removes unused code from your final bundle, while code splitting divides your code into smaller chunks that can be loaded on demand.

Can you explain how tree shaking works?

Sure! Tree shaking works by analyzing the import/export statements in your code. Tools like Webpack or Rollup identify which parts of the code are actually used and eliminate the rest during the build process.

And how does code splitting improve performance?

Code splitting improves performance by loading only the necessary code for the initial render. This reduces the initial load time and allows for faster interactions as additional code is loaded only when needed.

Are there any tools that help with these techniques?

Yes, popular tools like Webpack, Rollup, and Parcel support both tree shaking and code splitting, making it easier to implement these optimizations in your projects.