Which module system is better suited for tree shaking (dead code elimination)?
Tree shaking capabilities differ between the systems: 1) ES Modules' static nature makes it ideal for tree shaking, 2) CommonJS's dynamic nature makes reliable tree shaking difficult or impossible, 3) ES Modules allow bundlers to determine unused exports without executing code, 4) CommonJS requires code execution to determine what's used, making tree shaking unreliable, 5) ES Modules' design enables better optimization and smaller bundle sizes, 6) Static analysis in ES Modules allows tools to safely remove unused code, 7) This difference significantly impacts final bundle size and application performance.