How can I transpile ES modules to CommonJS?

How can I transpile ES modules to CommonJS?

You can use tools like Babel or TypeScript to transpile ES modules to CommonJS. Would you like a step-by-step guide?

Yes, please provide a step-by-step guide using Babel.

First, install Babel and the necessary presets: npm install --save-dev @babel/core @babel/cli @babel/preset-env. Then, create a .babelrc file with the following content: { "presets": ["@babel/preset-env"] }. Finally, run the command npx babel src --out-dir lib to transpile your code.

What if I want to use TypeScript instead?

If you're using TypeScript, you can set the module option in your tsconfig.json to commonjs. Then, compile your TypeScript files using tsc.

Are there any downsides to using CommonJS?

Yes, CommonJS modules are synchronous and can lead to performance issues in environments that support ES modules natively. It's also less compatible with tree-shaking.