rollup

Installation
SKILL.md

Rollup

Rollup (v4) is the bundler of choice for libraries. It produces smaller, cleaner code than Webpack and pioneered Tree Shaking.

When to Use

  • NPM Packages: Building a library for others to use.
  • Flat Bundling: "Scope Hoisting" puts everything in one closure for performance.

Core Concepts

Tree Shaking

Rollup analyzes the import graph and excludes unused code statically.

Formats

Outputs esm, cjs, umd, iife.

Related skills
Installs
1
GitHub Stars
7
First Seen
Feb 10, 2026