Why is tree shaking important?

What is tree shaking and why is it important?

Tree shaking is a technique used in JavaScript bundlers to eliminate unused code. It's important because it reduces the size of your application, leading to faster load times and improved performance.

How does tree shaking work in practice?

Tree shaking works by analyzing the dependency graph of your code. It identifies which parts of the code are actually used and removes the rest during the build process.

Can you give me an example of a tool that uses tree shaking?

Sure! Webpack is a popular module bundler that supports tree shaking. It helps optimize your code by removing unused exports.

Are there any downsides to tree shaking?

One downside is that if not configured properly, tree shaking might remove code that is actually needed, leading to runtime errors. It's essential to test thoroughly after implementing it.