What is rollup-plugin-babel and how do I use it?

What is rollup-plugin-babel?

rollup-plugin-babel is a Rollup plugin that allows you to use Babel to transpile your JavaScript code, enabling you to use the latest JavaScript features while maintaining compatibility with older environments.

How do I install it?

You can install it using npm with the command: npm install rollup-plugin-babel --save-dev.

Can you show me a basic configuration example?

Sure! Here's a simple example:

import babel from 'rollup-plugin-babel';

export default {
  input: 'src/index.js',
  output: {
    file: 'dist/bundle.js',
    format: 'cjs'
  },
  plugins: [
    babel({
      exclude: 'node_modules/**'
    })
  ]
};

What options can I configure in rollup-plugin-babel?

You can configure options like exclude, include, babelrc, and presets to customize how Babel processes your files.