build-pipelines-bundling

What problem does it solve?

Bundle sizes and load times are a frequent bottleneck in modern web apps. This Skill explains how to optimize JavaScript bundles through bundling fundamentals, code splitting, chunking strategies, tree shaking, and build pipelines, enabling faster, more maintainable applications.

Core Features & Use Cases

• Bundling Fundamentals: Understand how modules are transformed into output bundles and how hashing affects caching.
• Code Splitting & Chunking: Route-based, component-based, and vendor splitting to enable on-demand loading and better initial performance.
• Tree Shaking & Minification: Remove unused code and minimize output size for production deployments.
• Use Case: Apply route-based splitting to a large SPA to dramatically reduce the initial payload while preserving functionality.

Quick Start

1. Examine a sample project to identify large, frequently imported modules.
2. Enable code splitting and configure runtime and vendor chunks for the chosen bundler (Webpack, Vite, or esbuild).
3. Build and inspect the dist and source maps to verify chunk distribution and caching advantages.